Application of cyclohexane-1,3-diones for six-membered oxygen-containing heterocycles synthesis.

[1]  Jing Sun,et al.  Diastereoselective synthesis of dispiro[indoline-3,3′-furan-2′,3′′-pyrrolidine] via [3 + 2]cycloaddition reaction of MBH maleimides of isatins and 1,3-dicarbonyl compounds , 2020 .

[2]  K. Bacharı,et al.  Multicomponent and 1,3-dipolar cycloaddition synthesis of triazole- and isoxazole-acridinedione/xanthenedione heterocyclic hybrids: Cytotoxic effects on human cancer cells , 2020 .

[3]  J. Mohr,et al.  Total Synthesis of Benzofuran-Based Aspergillusene B via Halogenative Aromatization of Enones. , 2020, Organic letters.

[4]  Mubashir Hassan,et al.  Synthesis and characterization of new 4H-chromene-3-carboxylates ensuring potent elastase inhibition activity along with their molecular docking and chemoinformatics properties. , 2020, Bioorganic chemistry.

[5]  Yi Hu,et al.  One-pot cascade synthesis of benzopyrans and dihydropyrano[c]chromenes catalyzed by lipase TLIM. , 2020, Bioorganic chemistry.

[6]  P. Baran,et al.  Two-Phase Synthesis of Taxol®. , 2020, Journal of the American Chemical Society.

[7]  M. Heravi,et al.  Acidic polymer containing sulfunic acid and carboxylic acid groups heterogenized with natural clay: A novel metal free and heterogeneous catalyst for acid-catalyzed reactions , 2020 .

[8]  D. Thirumalai,et al.  An efficient heterogeneous iron oxide nanoparticle catalyst for the synthesis of 9-substituted xanthene-1,8-dione , 2020, Research on Chemical Intermediates.

[9]  Haibing He,et al.  Asymmetric Synthesis of Rugulotrosin A. , 2020, Organic letters.

[10]  Shaifali,et al.  Iodine(iii) promoted ring-rearrangement reaction of 1-arylamino-2-oxocyclopentane-1-carbonitriles to synthesize N-aryl-δ-valerolactams. , 2020, Organic & biomolecular chemistry.

[11]  H. Wong,et al.  Total Syntheses of (-)-Deoxoapodine, (-)-Kopsifoline D and (-)-Beninine. , 2019, The Journal of organic chemistry.

[12]  G. Zyryanov,et al.  A meglumine catalyst–based synthesis, molecular docking, and antioxidant studies of dihydropyrano[3, 2‐ b ]chromenedione derivatives , 2019, Journal of Heterocyclic Chemistry.

[13]  D. Ramachary,et al.  Organocatalytic Reductive Propargylation: Scope and Applications. , 2019, The Journal of organic chemistry.

[14]  B. Mahmoudi,et al.  Efficient preparation of 1,8-dioxo-octahydroxanthene derivatives by recyclable cobalt-incorporated sulfated zirconia (ZrO2/SO42−/Co) nanoparticles , 2019, Journal of Nanoparticle Research.

[15]  M. Irfan,et al.  Design, Synthesis, and Biological Evaluation of Novel Fused Spiro-4H-Pyran Derivatives as Bacterial Biofilm Disruptor , 2019, ACS omega.

[16]  Soleiman Rahmani,et al.  Immobilized copper-layered nickel ferrite on acid-activated montmorillonite, [(NiFe2O4@Cu)(H+-Mont)], as a superior magnetic nanocatalyst for the green synthesis of xanthene derivatives , 2019, RSC advances.

[17]  R. Luque,et al.  Solvent-Free Preparation of 1,8-Dioxo-Octahydroxanthenes Employing Iron Oxide Nanomaterials , 2019, Materials.

[18]  Pradeep Kumar,et al.  Tf2 NH catalyzed 1,6-conjugate addition of 2-hydroxy-p -quinone methides with β -Functionalized Ketones: Access to 2,3,4,9-Tetrahydro-1H -xanthenones and 4H -Chromene Derivatives , 2019, European Journal of Organic Chemistry.

[19]  Xiao‐Yu Liu,et al.  Enantioselective Total Synthesis of (-)-Arcutinine. , 2019, Journal of the American Chemical Society.

[20]  Abha Sharma,et al.  Gluconic acid promoted cascade reactions of 2-phenylimidazo[1,2-a] pyridine-3-carbaldehyde with cyclohexane-1,3-dione to create novel fused bisheterocycles , 2019, Synthetic Communications.

[21]  Giorgos Jimenez,et al.  One-pot synthesis of 2-amino-4H-chromene derivatives by MNPs@Cu as an effective and reusable magnetic nanocatalyst , 2019, RSC advances.

[22]  Y. Qu,et al.  Acyl furans from cyclohexane-1,3-diones – A synthesis of hibiscone C , 2019, Tetrahedron Letters.

[23]  Sheetal,et al.  Hypervalent Iodine(III)-Mediated Counteranion Controlled Intramolecular Annulation of Exocyclic β-Enaminone to Carbazolone and Imidazo[1,2-a]pyridine Synthesis. , 2019, Chemistry.

[24]  B. Khade,et al.  B(C6F5)3 catalyzed synthesis of dihydropyrano[3,2-b]chromenediones under solvent-free conditions , 2019, Synthetic Communications.

[25]  P. Wadgaonkar,et al.  Click chemistry based multicomponent approach in the synthesis of spirochromenocarbazole tethered 1,2,3-triazoles as potential anticancer agents. , 2019, Bioorganic chemistry.

[26]  M. Mokhtary,et al.  Nano-CuFe2O4@SO3H Catalyzed Efficient One-Pot Cyclo-Dehydration of Dimedone and Synthesis of Chromeno[4,3-b]chromenes , 2019 .

[27]  M. Khalilzadeh,et al.  An efficient and reusable nano catalyst for the synthesis of benzoxanthene and chromene derivatives , 2019, Scientific Reports.

[28]  S. Joshi,et al.  Synthesis, molecular modeling and BACE-1 inhibitory study of tetrahydrobenzo[b] pyran derivatives. , 2019, Bioorganic chemistry.

[29]  R. Luque,et al.  Aqueous synthesis of 1,8-dioxo-octahydroxanthenes using supported cobalt nanoparticles as a highly efficient and recyclable nanocatalyst , 2019, Catalysis Communications.

[30]  Mohamed Abdenour Redouane,et al.  [DMImd-DMP]: A highly efficient and reusable catalyst for the synthesis of 4H-benzo[b]pyran derivatives , 2019 .

[31]  N. Babu G.,et al.  AmberliteTM IRA67: A novel and efficient ion exchange resin catalyst for the synthesis of 1, 8-dioxoxanthene derivatives , 2019, Cogent Chemistry.

[32]  M. Yousefi,et al.  Piperazine: An excellent catalyst for the synthesis of 2-amino-3-cyano-4H-pyrans derivatives in aqueous medium. , 2018, Bioorganic chemistry.

[33]  A. Sivakumar,et al.  An eco-friendly catalytic system for multicomponent, one-pot synthesis of novel spiro-chromeno indoline-triones and their anti-prostate cancer potentials evaluated via alkaline phosphatase inhibition mechanism. , 2018, Bioorganic chemistry.

[34]  M. Zeeb,et al.  Electrosynthesis of nano-sized pyran and chromene derivatives by one-pot reaction between cyclic-1,3-diketons, malononitrile/ethyl cyanoacetate, and isatins , 2018, Journal of Nanostructure in Chemistry.

[35]  S. Sahoo,et al.  One-pot practical method for synthesis of functionalized 4H-chromen-5-one derivatives under catalyst and solvent-free conditions , 2018, Synthetic Communications.

[36]  He Huang,et al.  Promiscuous enzyme-catalyzed cascade reaction: Synthesis of xanthone derivatives. , 2018, Bioorganic chemistry.

[37]  R. Singla,et al.  Identification of novel indole based heterocycles as selective estrogen receptor modulator. , 2018, Bioorganic chemistry.

[38]  R. Yousefi,et al.  Synthesis and Antioxidant Activity Evaluation of Some Novel Aminocarbonitrile Derivatives Incorporating Carbohydrate Moieties , 2018, ACS omega.

[39]  M. Dekamin,et al.  Selective and highly efficient synthesis of xanthenedione or tetraketone derivatives catalyzed by ZnO nanorod-decorated graphene oxide , 2018 .

[40]  R. Pawar,et al.  Organocatalyzed Synthesis of 2-Amino-4H-Chromenes: An Enantioselective Approach , 2018, Current Organocatalysis.

[41]  P. Shanmugam,et al.  Amberlite IRA-400 Cl Resin Catalyzed Multicomponent Organic Synthesis in Water: Synthesis, Antimicrobial and Docking Studies of Spiroheterocyclic 2-Oxindoles and Acenaphthoquinone , 2018, Current Organocatalysis.

[42]  A. Maleki,et al.  Ultrasonic-Assisted Preparation, Characterization, and Use of Novel Biocompatible Core/Shell Fe3O4@GA@Isinglass in the Synthesis of 1,4-Dihydropyridine and 4H-Pyran Derivatives , 2018, ACS omega.

[43]  R. Luque,et al.  Catalytic Versatility of Novel Sulfonamide Functionalized Magnetic Composites , 2018 .

[44]  A. Maleki,et al.  Green multicomponent synthesis of four different classes of six-membered N-containing and O-containing heterocycles catalyzed by an efficient chitosan-based magnetic bionanocomposite , 2018 .

[45]  V. V. Shinde,et al.  6,6′-Thiobis(methylene)-β-cyclodextrin dimer as a dimeric host and reusable promoter for synthesis of chromenones in water , 2018 .

[46]  Ágnes Magyar,et al.  One-pot, three-component, selective synthesis of the polyfunctionalized 4H-pyran and 4H-benzo[b]pyran derivatives in the presence of a highly efficient molecular sieve-supported zinc catalyst , 2018, Green Processing and Synthesis.

[47]  G. Chaturbhuj,et al.  Rapid, efficient and solvent-free synthesis of (un)symmetrical xanthenes catalyzed by recyclable sulfated polyborate , 2017 .

[48]  A. S. Burange,et al.  An efficient route to 1,8-dioxo-octahydroxanthenes and -decahydroacridines using a sulfated zirconia catalyst , 2017 .

[49]  T. Khatab,et al.  Design and Synthesis Pairing Between Xanthene and Tetrazole in Pentacyclic System Using Tetrachlorosilane with Aurora Kinase Inhibitor Validation: Design and Synthesis Pairing Between Xanthene and Tetrazole in Pentacyclic System Using Tetrachlorosilane with Aurora Kinase Inhibitor Validation , 2017 .

[50]  Zifa Shi,et al.  Organocatalytic Enantioselective Tandem Michael Addition and Cyclization Reaction of Trisubstituted 2‐Nitro‐1,3‐enynes with Cyclic 1,3‐Diketones , 2017 .

[51]  Mi Ri Kim,et al.  Amine-functionalized hyper-crosslinked polyphenanthrene as a metal-free catalyst for the synthesis of 2-amino-tetrahydro-4H-chromene and pyran derivatives , 2017 .

[52]  B. Zengin Kurt,et al.  Microwave assisted synthesis of novel hybrid tacrine-sulfonamide derivatives and investigation of their antioxidant and anticholinesterase activities. , 2017, Bioorganic chemistry.

[53]  F. Nemati,et al.  Nano-Fe3O4 encapsulated-silica particles bearing sulfonic acid groups as an efficient, eco-friendly and magnetically recoverable catalyst for synthesis of various xanthene derivatives under solvent-free conditions , 2017 .

[54]  M. Zirak,et al.  Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO , 2017 .

[55]  Qiong Chen,et al.  An Efficient One-Pot Synthesis of 2-(Aryloxyacetyl)cyclohexane-1,3-diones as Herbicidal 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors. , 2016, Journal of agricultural and food chemistry.

[56]  M. Ramezani,et al.  Metal free synthesis of tetrahydrobenzo[a]xanthenes using orange peel as a natural and low cost efficient heterogeneous catalyst , 2016 .

[57]  Xiao‐Yu Liu,et al.  Total synthesis of atropurpuran , 2016, Nature Communications.

[58]  M. Zolfigol,et al.  Applications of a novel nano magnetic catalyst in the synthesis of 1,8-dioxo-octahydroxanthene and dihydropyrano[2,3-c]pyrazole derivatives , 2016 .

[59]  Esmayeel Abbaspour-Gilandeh,et al.  (CTA)3[SiW12]–Li+–MMT: a novel, efficient and simple nanocatalyst for facile and one-pot access to diverse and densely functionalized 2-amino-4H-chromene derivatives via an eco-friendly multicomponent reaction in water , 2016 .

[60]  A. Almansour,et al.  A green synthesis of unsymmetrical 9-arylxanthenes in a one-pot cascade benzylation/annulation/dehydration strategy , 2016 .

[61]  Qiuhua Zhu,et al.  Diastereo- and Enantioselective Construction of the Hexahydrocoumarin Scaffold via an Organocatalytic Asymmetric [3 + 3] Cyclization. , 2016, The Journal of organic chemistry.

[62]  P. Wadgaonkar,et al.  Problem Solving and Environmentally Benign Approach toward Diversity Oriented Synthesis of Novel 2-Amino-3-phenyl (or Alkyl) Sulfonyl-4H-chromenes at Ambient Temperature , 2016 .

[63]  Monika Gupta,et al.  One-pot synthesis of various 2-amino-4H-chromene derivatives using a highly active supported ionic liquid catalyst , 2016 .

[64]  Hui Wang,et al.  FeCl3-Mediated One-Pot Domino Reactions for the Synthesis of 9-Aryl/9-Arylethynyl-2,3,4,9-tetrahydro-1H-xanthen-1-ones from Propargylic Amines/Diaryl Amines and 1,3-Cyclohexanediones. , 2016, The Journal of organic chemistry.

[65]  Aniruddha Molla,et al.  Base free synthesis of iron oxide supported on boron nitride for the construction of highly functionalized pyrans and spirooxindoles , 2016 .

[66]  E. Akbarzadeh,et al.  New basic ionic liquid from ethan-1,2-diyl bis (hydrogen sulfate) and DBU (1,8-diazobicyclo[5.4.0]undec-7-ene) as an efficient catalyst for one-pot synthesis of xanthene derivatives , 2015 .

[67]  P. Das,et al.  Ethyl 3-(2,4-dioxocyclohexyl)propanoate as a novel precursor for N-substituted 4,4a,5,6-tetrahydroquinoline-2,7(1H,3H)-diones and their corresponding 3,4-dihydro-7-hydroxyquinolin-2(1H)-ones and 7-hydroxyquinolin-2(1H)-ones synthesis , 2015, Molecular Diversity.

[68]  R. Sharpe,et al.  Asymmetric Total Synthesis of the Indole Diterpene Alkaloid Paspaline. , 2015, The Journal of organic chemistry.

[69]  P. Wadgaonkar,et al.  Tris-hydroxymethylaminomethane (THAM): a novel organocatalyst for a environmentally benign synthesis of medicinally important tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles , 2015 .

[70]  D. Rawat,et al.  [TBA][Gly] ionic liquid promoted multi-component synthesis of 3-substituted indoles and indolyl-4H-chromenes , 2015 .

[71]  Garima Singh,et al.  Alkaline earth metal catalyzed cascade, one-pot, solvent-free, and scalable synthesis of pyranocoumarins and benzo[b]pyrans , 2015 .

[72]  F. Dehghani,et al.  A green one-pot three-component synthesis of tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives using a Fe3O4@SiO2–imid–PMAn magnetic nanocatalyst under ultrasonic irradiation or reflux conditions , 2015 .

[73]  A. Reeve.  Reaction of Dimedone and Benzaldehyde: A Discovery-Based Lab for Second-Semester Organic Chemistry , 2015 .

[74]  P. Das,et al.  Secondary amine based ionic liquid: an efficient catalyst for solvent free one pot synthesis of xanthenes and benzoxanthenes , 2015 .

[75]  G. R. Chaudhary,et al.  An efficient and green synthesis of xanthene derivatives using CuS quantum dots as a heterogeneous and reusable catalyst under solvent free conditions , 2015 .

[76]  J. Porco,et al.  Atropselective Syntheses of (−) and (+) Rugulotrosin A Utilizing Point-to-Axial Chirality Transfer , 2014, Nature chemistry.

[77]  A. Amoozadeh,et al.  Nano-WO3-supported sulfonic acid: New, efficient and high reusable heterogeneous nano catalyst , 2015 .

[78]  S. Tangestaninejad,et al.  Bismuth triflate, Bi(OTf)3, as an efficient and reusable catalyst for synthesis of dihydropyrano[3,2-b]chromenediones , 2015, Journal of the Iranian Chemical Society.

[79]  Qiong Chen,et al.  Synthesis and herbicidal evaluation of triketone-containing quinazoline-2,4-diones. , 2014, Journal of agricultural and food chemistry.

[80]  M. Eslami,et al.  Highly efficient organocatalytic synthesis of diverse and densely functionalized 2-amino-3-cyano-4H-pyrans under mechanochemical ball milling , 2014 .

[81]  F. Ghorbani,et al.  Potassium phthalimide promoted green multicomponent tandem synthesis of 2-amino-4H-chromenes and 6-amino-4H-pyran-3-carboxylates , 2014 .

[82]  G. N. Babu,et al.  DABCO promoted one-pot synthesis of dihydropyrano(c)chromene and pyrano[2,3-d]pyrimidine derivatives and their biological activities , 2014 .

[83]  F. Dehghani,et al.  Fe3O4@SiO2–imid–PMAn magnetic porous nanospheres as recyclable catalysts for the one-pot synthesis of 14-aryl- or alkyl-14H-dibenzo[a,j]xanthenes and 1,8-dioxooctahydroxanthene derivatives under various conditions , 2014 .

[84]  S. Santra,et al.  Microwave-Assisted Three-Component “Catalyst and Solvent-Free” Green Protocol: A Highly Efficient and Clean One-Pot Synthesis of Tetrahydrobenzo[b]pyrans , 2014 .

[85]  C. Schneider,et al.  Brønsted acid catalyzed, conjugate addition of β-dicarbonyls to in situ generated ortho-quinone methides--enantioselective synthesis of 4-aryl-4H-chromenes. , 2014, Angewandte Chemie.

[86]  M. A. Zanjanchi,et al.  BiVO4-NPs as a new and efficient nano-catalyst for the synthesis of 1,8-dioxo-octahydro xanthenes , 2014, Journal of Nanostructure in Chemistry.

[87]  Harjinder Singh,et al.  Ultrasound promoted one pot synthesis of novel fluorescent triazolyl spirocyclic oxindoles using DBU based task specific ionic liquids and their antimicrobial activity. , 2014, European journal of medicinal chemistry.

[88]  Shailesh P. Satasia,et al.  Synthesis, characterization and biological screening of novel 5-imidazopyrazole incorporated fused pyran motifs under microwave irradiation , 2014 .

[89]  B. Banerjee,et al.  Facile and One-Pot Access to Diverse and Densely Functionalized 2-Amino-3-cyano-4H-pyrans and Pyran-Annulated Heterocyclic Scaffolds via an Eco-Friendly Multicomponent Reaction at Room Temperature Using Urea as a Novel Organo-Catalyst , 2014 .

[90]  S. Paul,et al.  Magnetically retrievable nano crystalline CuFe2O4 catalyzed multi-component reaction: a facile and efficient synthesis of functionalized dihydropyrano[2,3-c]pyrazole, pyrano[3,2-c]coumarin and 4H-chromene derivatives in aqueous media , 2014 .

[91]  N. Bhuvanesh,et al.  Self-catalyzed syntheses, structural characterization, DPPH radical scavenging-, cytotoxicity-, and DFT studies of phenoxyaliphatic acids of 1,8-dioxo-octahydroxanthene derivatives , 2014 .

[92]  F. Shirini,et al.  Multi-walled carbon nanotube supported Fe3O4NPs: an efficient and reusable catalyst for the one-pot synthesis of 4H-pyran derivatives , 2014 .

[93]  A. Lalitha,et al.  Ceric ammonium nitrate supported HY-zeolite: An efficient catalyst for the synthesis of 1,8-dioxo-octahydroxanthenes , 2014 .

[94]  F. Shirini,et al.  One-pot synthesis of various xanthene derivatives using ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable catalyst under solvent-free conditions , 2014 .

[95]  M. H. Elnagdi,et al.  Organobase-catalyzed three-component reactions for the synthesis of 4H-2-aminopyrans, condensed pyrans and polysubstituted benzenes , 2014, Beilstein journal of organic chemistry.

[96]  Hong-Xia Liu,et al.  Meglumine: A novel and efficient catalyst for one-pot, three-component combinatorial synthesis of functionalized 2-amino-4H-pyrans. , 2013, ACS combinatorial science.

[97]  H. Naeimi,et al.  A highly efficient nano-Fe3O4 encapsulated-silica particles bearing sulfonic acid groups as a solid acid catalyst for synthesis of 1,8-dioxo-octahydroxanthene derivatives , 2013, Journal of Nanoparticle Research.

[98]  F. Shirini,et al.  N-sulfonic acid poly(4-vinylpyridinium) chloride: A novel polymeric and reusable catalyst for the preparation of xanthenes derivatives , 2013 .

[99]  W. Cao,et al.  Three-component synthesis of 2-amino-3-cyano-5-oxo-4-perfluoroalkyl-5,6,7,8-tetrahydro-4H-chromene derivatives , 2013 .

[100]  P. Das,et al.  Cyclohexyl iodide promoted approach for coumarin analog synthesis using small scaffold , 2013, Molecular Diversity.

[101]  G. Hota,et al.  Sulfate Grafted Iron Stabilized Zirconia Nanoparticles as Efficient Heterogenous Catalysts for Solvent-Free Synthesis of Xanthenediones under Microwave Irradiation , 2013 .

[102]  J. Albadi,et al.  Copper iodide nanoparticles on poly(4-vinylpyridine): A new and efficient catalyst for the synthesis of 1,8-dioxooctahydroxanthenes under solvent-free conditions , 2013, Proceedings of the Indian Academy of sciences. Chemical sciences.

[103]  L. Tietze,et al.  Enantioselective total synthesis of (-)-diversonol. , 2013, Chemistry.

[104]  P. Puthiaraj,et al.  One-Pot Multicomponent Solvent-Free Synthesis of 2-Amino-4H-benzo[b]pyrans Catalyzed by Per-6-amino-β-cyclodextrin , 2013 .

[105]  A. Khazaei,et al.  Efficient preparation of 9-aryl-1,8-dioxo-octahydroxanthenes catalyzed by nano-TiO2 with high recyclability , 2013 .

[106]  N. Ganguly,et al.  An efficient one-pot organocatalytic synthesis of 9-(1H-indol-3-yl)-xanthen-4-(9H)-ones under mild aqueous micellar conditions , 2012 .

[107]  Madhu Aeluri,et al.  A greener synthesis of 1,8-dioxo-octahydroxanthene derivatives under ultrasound , 2012 .

[108]  F. Shirini,et al.  Succinimide-N-sulfonic acid: An efficient catalyst for the synthesis of xanthene derivatives under solvent-free conditions , 2012 .

[109]  R. Kumar,et al.  Synthesis of novel 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthene-11-thiones and evaluation of their biocidal effects. , 2012, European journal of medicinal chemistry.

[110]  P. T. Perumal,et al.  An Efficient, One-Pot Regioselective Synthesis of Highly Functionalized Chromen-5-ones and Pyrano[3,2-c]chromen-5-ones via a Tandem Knoevenagel–Michael–Cyclization Sequence , 2012 .

[111]  K. Rad‐Moghadam,et al.  Mg(BF4)2 doped in [BMIm][BF4]: A homogeneous ionic liquid-catalyst for efficient synthesis of 1,8-dioxo-octahydroxanthenes, decahydroacridines and 14-aryl-14H-dibenzo[a,j]xanthenes , 2012 .

[112]  J. Conrad,et al.  Copper(I)-catalyzed intramolecular O-arylation for the synthesis of 2,3,4,9-tetrahydro-1H-xanthen-1-ones with low loads of CuCl. , 2012, The Journal of organic chemistry.

[113]  D. Du,et al.  Enantioselective synthesis of 2-amino-5,6,7,8-tetrahydro-5-oxo-4H-chromene-3-carbonitriles using squaramide as the catalyst , 2012 .

[114]  Xuesen Fan,et al.  Copper-catalyzed tandem reaction of 2-bromobenzyl bromides with 1,3-dicarbonyl compounds leading to 4H-chromenes , 2012 .

[115]  Anil Kumar,et al.  An expeditious and greener one-pot synthesis of 4H-chromenes catalyzed by Ba(OTf)2 in PEG-water , 2012 .

[116]  Minghao Li,et al.  Facile construction of densely functionalized 4H-chromenes via three-component reactions catalyzed by L-proline , 2012 .

[117]  A. Ramazani,et al.  One-pot synthesis of 4H-benzo[b]pyrans and dihydropyrano[c]chromenes using inorganic–organic hybrid magnetic nanocatalyst in water , 2012 .

[118]  N. B. Reddy,et al.  Ytterbium perfluorooctanoate [Yb(PFO)3]: a novel and efficient catalyst for the synthesis of tetrahydrobenzo[a]xanthene-11-ones under microwave irradiation , 2012 .

[119]  S. Barzegar,et al.  A novel polymeric catalyst for the one-pot synthesis of xanthene derivatives under solvent-free conditions , 2012, Journal of the Iranian Chemical Society.

[120]  Fei-Yang Zhao,et al.  One-pot, three-component synthesis of a library of spirooxindole-pyrimidines catalyzed by magnetic nanoparticle supported dodecyl benzenesulfonic acid in aqueous media. , 2012, ACS combinatorial science.

[121]  P. Das,et al.  Consecutive Michael–Claisen Process for Cyclohexane-1,3-dione Derivative (CDD) Synthesis from Unsubstituted and Substituted Acetone , 2012 .

[122]  K. Gademann,et al.  Total synthesis of cyrneine A. , 2012, Angewandte Chemie.

[123]  M. Zolfigol,et al.  Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media , 2012 .

[124]  Rajashaker Bantu,et al.  Efficient, High-Yield Protocol for the One-Pot Synthesis of Benzopyran Derivatives Catalyzed by p-TSA in Aqueous Media , 2012 .

[125]  Madhu Aeluri,et al.  Catalysis by molecular iodine: a rapid synthesis of 1,8-dioxo-octahydroxanthenes and their evaluation as potential anticancer agents. , 2012, Bioorganic & medicinal chemistry letters.

[126]  M. Zolfigol,et al.  Ionic liquid triethylamine-bonded sulfonic acid {[Et3N–SO3H]Cl} as a novel, highly efficient and homogeneous catalyst for the synthesis of β-acetamido ketones, 1,8-dioxo-octahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes , 2012 .

[127]  A. Pandey,et al.  Green Approaches for the Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones in Aqueous Media and Under Microwave Irradiation in Solventless Conditions , 2012 .

[128]  M. Shi,et al.  An unusual Me3SiI-promoted [4+2] annulation and reduction: an efficient approach to construct 4H-benzopyrans. , 2012, Chemical communications.

[129]  Shoulei Wang,et al.  One-pot enantioselective synthesis of functionalized pyranocoumarins and 2-amino-4H-chromenes: discovery of a type of potent antibacterial agent. , 2012, The Journal of organic chemistry.

[130]  B. Das,et al.  Efficient Organocatalytic Synthesis of 1,8-Dioxo-octahydroxanthenes , 2012 .

[131]  G. Nandi,et al.  DABCO-Promoted three-component regioselective synthesis of functionalized chromen-5-ones and pyrano[3,2-c]chromen-5-ones via direct annulation of α-oxoketene-N,S-arylaminoacetals under solvent-free conditions , 2012 .

[132]  S. Y. Ebrahimipour,et al.  H4SiW12O40 Catalyzed One-Pot Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a] Xanthen-11-ones Under Solvent-Free Conditions , 2012 .

[133]  Jun Luo,et al.  A magnetic nanoparticle supported dual acidic ionic liquid: a “quasi-homogeneous” catalyst for the one-pot synthesis of benzoxanthenes , 2012 .

[134]  C. Zhao,et al.  Organocatalyzed enantioselective synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylates. , 2011, Tetrahedron letters.

[135]  Jian Zhou,et al.  Molecular iodine‐catalyzed one‐pot synthesis of tetrahydrobenzo[a]xanthene‐11‐one and diazabenzo[a]anthracene‐9,11‐dione derivatives under microwave irradiation , 2011 .

[136]  Wei Lin Li,et al.  Alum-Catalyzed One-Pot Synthesis of Dihydropyrano(3,2-b)chromenediones , 2011 .

[137]  S. Muthusubramanian,et al.  Efficient atom economical one-pot multicomponent synthesis of densely functionalized 4H-chromene derivatives , 2011 .

[138]  M. Doroodmand,et al.  Silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO): A highly efficient, reusable and new heterogeneous catalyst for the synthesis of 4H-benzo[b]pyran derivatives , 2011 .

[139]  S. Allameh,et al.  One-pot synthesis of 2-amino-3-cyano-4-arylsubstituted tetrahydrobenzo[b]pyrans catalysed by silica gel-supported polyphosphoric acid (PPA-SiO2) as an efficient and reusable catalyst , 2011 .

[140]  N. Karimi,et al.  Cu/SiO2-Catalyzed One-Pot Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[α]xanthen-11-ones Under Solvent-Free Conditions , 2011 .

[141]  N. Foroughifar,et al.  Ammonium Chloride–Catalyzed One-Pot Synthesis of Tetrahydrobenzo[α]xanthen-11-one Derivatives Under Solvent-Free Conditions , 2011 .

[142]  R. K. Verma,et al.  An efficient one-pot solvent-free synthesis and photophysical properties of 9-aryl/alkyl-octahydroxanthene-1,8-diones , 2011 .

[143]  Qun-yan Wu,et al.  Synthesis of 3,4-dihydropyridin-2(1H)-ones and 3,4-dihydro-2H-pyrans via Four-component reactions of aromatic aldehydes, cyclic 1,3-carbonyls, arylamines, and dimethyl acetylenedicarboxylate. , 2011, ACS combinatorial science.

[144]  J. Conrad,et al.  Cu(I)-catalyzed domino reactions: efficient and selective synthesis of 4H-chromenes and naphthalenes. , 2011, Organic letters.

[145]  U. Flörke,et al.  Diversonol and blennolide derivatives from the endophytic fungus Microdiplodia sp.: absolute configuration of diversonol. , 2011, Journal of natural products.

[146]  Pravin V. Shinde,et al.  Surfactant catalyzed convenient and greener synthesis of tetrahydrobenzo[a]xanthene-11-ones at ambient temperature , 2011, Beilstein journal of organic chemistry.

[147]  Lili Lin,et al.  Efficient Asymmetric Synthesis of 4H‐Chromene Derivatives through a Tandem Michael Addition–Cyclization Reaction Catalyzed by a Salen–Cobalt(II) Complex , 2011 .

[148]  B. Reddy,et al.  InCl3-catalyzed three-component reaction: a novel synthesis of dihydropyrano[3,2-b]chromenediones under solvent-free conditions , 2010 .

[149]  Hong-juan Wang,et al.  Multicomponent, solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one derivatives catalysed by cyanuric chloride , 2010 .

[150]  D. Pore,et al.  Envirocat EPZ-10: A Solid Acid Catalyst for the Synthesis of 1,8-Dioxo-octahydroxanthenes in Aqueous Medium , 2010 .

[151]  A. Shafiee,et al.  Synthesis and in‐vitro Cytotoxicity of Poly‐functionalized 4‐(2‐Arylthiazol‐4‐yl)‐4H‐chromenes , 2010, Archiv der Pharmazie.

[152]  Xiaomei Zhang,et al.  Highly enantioselective construction of spiro[4H-pyran-3,3'-oxindoles] through a domino Knoevenagel/Michael/cyclization sequence catalyzed by cupreine. , 2010, Organic letters.

[153]  W. Su,et al.  A new strategy for the synthesis of benzoxanthenes catalyzed by proline triflate in water , 2010 .

[154]  P. Das,et al.  Copper Promoted C-N and C-O Type Cross-Coupling Reactions , 2010 .

[155]  K. Bahrami,et al.  Amberlite IRA-400 (OH−) as a Catalyst in the Preparation of 4H-Benzo[b]pyrans in Aqueous Media , 2010 .

[156]  Atul Kumar,et al.  Diversity oriented synthesis of benzoxanthene and benzochromene libraries via one-pot, three-component reactions and their anti-proliferative activity. , 2010, Journal of combinatorial chemistry.

[157]  Guangxing Li,et al.  Glycerol as a promoting medium for electrophilic activation of aldehydes: catalyst-free synthesis of di(indolyl)methanes, xanthene-1,8(2H)-diones and 1-oxo-hexahydroxanthenes , 2009 .

[158]  S. Kapur,et al.  A facile one-pot green synthesis and antibacterial activity of 2-amino-4H-pyrans and 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. , 2009, European journal of medicinal chemistry.

[159]  G. Nandi,et al.  An efficient one-pot synthesis of tetrahydrobenzo[a]xanthene-11-one and diazabenzo[a]anthracene-9,11-dione derivatives under solvent free condition , 2009 .

[160]  J. Khurana,et al.  pTSA-catalyzed one-pot synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones in ionic liquid and neat conditions , 2009 .

[161]  J. Yadav,et al.  InBr3-catalyzed annulations of cyclic 1,3-diketones with aryl propargyl alcohols: a novel synthesis of 2,4-diaryldihydropyrans , 2009 .

[162]  Li-Feng Zhang,et al.  Iodine-Catalyzed Synthesis of 12-Aryl-8,9,10,12-tetrahydro-benzo[a]xanthen-11-one Derivatives via Multicomponent Reaction , 2009 .

[163]  Nidhi Singh,et al.  Beta-triketone inhibitors of plant p-hydroxyphenylpyruvate dioxygenase: modeling and comparative molecular field analysis of their interactions. , 2009, Journal of agricultural and food chemistry.

[164]  P. Langer,et al.  Synthesis of 2,6‐Dioxo‐1,2,3,4,5,6‐hexahydroindoles by Acid‐ Catalyzed Cyclization of Acetal‐Protected (2,4‐Dioxocyclohex‐1‐yl)acetamides and their Transformation into 5,8,9,10‐Tetrahydro‐6H‐indolo[2,1‐a]isoquinolin‐9‐ones , 2009 .

[165]  G. H. Mahdavinia,et al.  Covalently anchored sulfonic acid on silica gel (SiO2-R-SO3H) as an efficient and reusable heterogeneous catalyst for the one-pot synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions , 2009 .

[166]  G. Sabitha,et al.  Cerium(III) Chloride–Catalyzed One-Pot Synthesis of Tetrahydrobenzo[b]pyrans , 2009 .

[167]  R. Pawar,et al.  Microwave Assisted Synthesis of 2,4-Diphenyl-4H-chromen-5-one Using ZnCl2/Montmorillonite K-10 , 2009 .

[168]  Hong-juan Wang,et al.  Synthesis 12-Aryl or 12-Alkyl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives catalyzed by dodecatungstophosphoric acid , 2009 .

[169]  Zhiyong Wang,et al.  Facile construction of functionalized 4H-chromene via tandem benzylation and cyclization. , 2008, Chemical communications.

[170]  H. Sheibani,et al.  High Surface Area MgO as a Highly Effective Heterogeneous Base Catalyst for Three-Component Synthesis of Tetrahydrobenzopyran and 3,4-Dihydropyrano[c]chromene Derivatives in Aqueous Media , 2008 .

[171]  D. Ramachary,et al.  Multi-catalysis reactions: direct organocatalytic sequential one-pot synthesis of highly functionalized cyclopenta[b]chromen-1-ones. , 2008, Organic & biomolecular chemistry.

[172]  J. Yadav,et al.  CeCl3·7H2O-Catalyzed Synthesis of 1-Oxo-hexahydroxanthene Derivatives in Aqueous Media , 2008 .

[173]  S. Uchida,et al.  Domino double Michael-Claisen cyclizations: a powerful general tool for introducing quaternary stereocenters at C4 of cyclohexane-1,3-diones and total synthesis of diverse families of sterically congested alkaloids. , 2008, The Journal of organic chemistry.

[174]  H. Hafez,et al.  A facile regioselective synthesis of novel spiro-thioxanthene and spiro-xanthene-9',2-[1,3,4]thiadiazole derivatives as potential analgesic and anti-inflammatory agents. , 2008, Bioorganic & medicinal chemistry letters.

[175]  H. Iwaasa,et al.  (9S)-9-(2-hydroxy-4,4-dimethyl-6-oxo-1-cyclohexen-1-yl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-xanthen-1-one, a selective and orally active neuropeptide Y Y5 receptor antagonist. , 2008, Journal of medicinal chemistry.

[176]  W. Su,et al.  An efficient synthesis of 3-arylmethyl-7,8-dihydro-6H-chromene-2,5-diones from Baylis-Hillman adduct acetates under solvent-free conditions , 2008 .

[177]  K. Srinivasan,et al.  An efficient synthesis of 1,8-dioxo-octahydro-xanthene derivatives promoted by a room temperature ionic liquid at ambient conditions under ultrasound irradiation. , 2008, Ultrasonics sonochemistry.

[178]  Jun Peng,et al.  sHA 14-1, a stable and ROS-free antagonist against anti-apoptotic Bcl-2 proteins, bypasses drug resistances and synergizes cancer therapies in human leukemia cell. , 2008, Cancer letters.

[179]  Jian Huang,et al.  Trichodermatides A-D, novel polyketides from the marine-derived fungus Trichoderma reesei. , 2008, Organic letters.

[180]  Brian M Stoltz,et al.  The catalytic asymmetric total synthesis of elatol. , 2008, Journal of the American Chemical Society.

[181]  William E. Kemnitzer,et al.  Discovery of 4-aryl-4H-chromenes as a new series of apoptosis inducers using a cell- and caspase-based high throughput screening assay. 4. Structure-activity relationships of N-alkyl substituted pyrrole fused at the 7,8-positions. , 2008, Journal of medicinal chemistry.

[182]  F. Nasiri,et al.  Reaction between dialkyl acetylenedicarboxylates and six-membered 1,3-diketones in the presence of trialkylamines: a convenient synthesis of alkyl 2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-4-carboxylates , 2007 .

[183]  Yasunori Yamamoto,et al.  Palladium(II)‐Catalyzed 1,4‐Addition of Arylboronic Acids to β‐Arylenones for Enantioselective Synthesis of 4‐Aryl‐4H‐chromenes , 2007 .

[184]  P. Mirzaei,et al.  Dowex-50W promoted synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and 1,8-dioxo-octahydroxanthene derivatives under solvent-free conditions , 2007 .

[185]  S. Kantevari,et al.  HClO4–SiO2 and PPA–SiO2 catalyzed efficient one-pot Knoevenagel condensation, Michael addition and cyclo-dehydration of dimedone and aldehydes in acetonitrile, aqueous and solvent free conditions: Scope and limitations , 2007 .

[186]  Xiao‐hong Wang,et al.  Nafion-H catalyzed cyclocondensation reaction for the synthesis of octahydroquinazolinone derivatives , 2007 .

[187]  Haitang Luo,et al.  Fe3+-montmorillonite as a cost-effective and recyclable solid acidic catalyst for the synthesis of xanthenediones , 2007 .

[188]  Ruslan F. Nasybullin,et al.  The Implication of Electrocatalysis in MCR Strategy: Electrocatalytic Multicomponent Transformation of Cyclic 1,3-Diketones, Aldehydes and Malononitrile into Substituted 5,6,7,8-Tetrahydro-4H-Chromenes , 2006 .

[189]  Chao-Hsiung Lin,et al.  Recent advances in coumarins and 1-azacoumarins as versatile biodynamic agents. , 2006, Current medicinal chemistry.

[190]  Yewen Fang,et al.  O-arylation versus C-arylation: copper-catalyzed intramolecular coupling of aryl bromides with 1,3-dicarbonyls. , 2006, The Journal of organic chemistry.

[191]  Manzoor Ahmad,et al.  New alpha-glucosidase inhibitors and antibacterial compounds from Myrtus communis L. , 2006 .

[192]  R. Hsung,et al.  An unusual cationic [2 + 2] cycloaddition in a divergent total synthesis of hongoquercin A and rhododaurichromanic acid A. , 2006, Journal of the American Chemical Society.

[193]  B. Stoltz,et al.  The formal total synthesis of dragmacidin B, trans-dragmacidin C, and cis- and trans-dihydrohamacanthins A , 2005 .

[194]  E Uriarte,et al.  Simple coumarins and analogues in medicinal chemistry: occurrence, synthesis and biological activity. , 2005, Current medicinal chemistry.

[195]  J. Tanaka,et al.  Enantioselective enol lactone synthesis under double catalytic conditions. , 2005, Organic letters.

[196]  Xianyong Wei,et al.  A Clean Synthesis of 1‐Oxo‐hexahydroxanthene Derivatives in Aqueous Media Catalyzed by TEBA , 2005 .

[197]  A. Peregudov,et al.  Synthesis and some heterocyclization reactions of new diethyl (1,1-difluoro-3,3-dicyano-2-trifluoromethylallyl)phosphonate and ethyl 3,3-dicyano-2-[(diethoxyphosphoryl)difluoromethyl]acrylate ☆ , 2004 .

[198]  William E. Kemnitzer,et al.  Discovery of 4-aryl-4H-chromenes as a new series of apoptosis inducers using a cell- and caspase-based high-throughput screening assay. 1. Structure-activity relationships of the 4-aryl group. , 2004, Journal of medicinal chemistry.

[199]  D. Hadjipavlou-Litina,et al.  Natural and synthetic coumarin derivatives with anti-inflammatory/ antioxidant activities. , 2004, Current pharmaceutical design.

[200]  I. Hwang,et al.  EK-2612, a new cyclohexane-1,3-dione possessing selectivity between rice (Oryza sativa) and barnyardgrass (Echinochloa crus-galli). , 2004, Pest management science.

[201]  P. D. Wilson,et al.  A modular and concise total synthesis of (+/-)-daurichromenic acid and analogues. , 2004, The Journal of organic chemistry.

[202]  E. Lacey,et al.  Rugulotrosins A and B: Two new antibacterial metabolites from an Australian isolate of a Penicillium sp. , 2004, Journal of natural products.

[203]  R. Hsung,et al.  Formal [3 + 3] cycloaddition approach to chromenes and chromanes. Concise total syntheses of (+/-)-rhododaurichromanic acids A and B and methyl (+/-)-daurichromenic ester. , 2003, Organic letters.

[204]  M. Cordaro,et al.  Regio and diastereoselective lactonisation of enolisable 1,3-dicarbonyls by reaction with mesoionic 1,3-oxazolium-5-olates. , 2003, Chemical communications.

[205]  A. Fairlamb,et al.  Exploring the potential of xanthene derivatives as trypanothione reductase inhibitors and chloroquine potentiating agents , 2003 .

[206]  Kennosuke Itoh,et al.  A new method for enol lactone synthesis by a Michael addition/cyclization sequence , 2003 .

[207]  Katsunori Tanaka,et al.  Mechanism of herbicidal activity of a new cyclohexane-1,3-dione, tepraloxydim to Poa annua L. , 2002 .

[208]  D. Shi,et al.  A CONVENIENT SYNTHESIS OF 2-AMINO-5,6,7,8-TETRAHYDRO-5-OXO- 4-ARYL-7,7-DIMETHYL-4H-BENZO-[b]-PYRAN-3-CARBONITRILE UNDER MICROWAVE IRRADIATION , 2002 .

[209]  S. Saitô,et al.  Revisiting [3 + 3] route to 1,3-cyclohexanedione frameworks: hidden aspect of thermodynamically controlled enolates. , 2001, The Journal of organic chemistry.

[210]  K. Lee,et al.  Isolation of rhododaurichromanic acid B and the anti-HIV principles rhododaurichromanic acid A and rhododaurichromenic acid from Rhododendron dauricum , 2001 .

[211]  Pei-jun Cai,et al.  A CONVENIENT SYNTHESIS OF 4-ARYL-7,7-DIMETHYL-5-OXO- 3,4,5,6,7,8-HEXAHYDROCOUMARIN UNDER MICROWAVE IRRADIATION WITHOUT CATALYST , 2001 .

[212]  Helen J. Mitchell,et al.  Natural Product-like Combinatorial Libraries Based on Privileged Structures. 1. General Principles and Solid-Phase Synthesis of Benzopyrans , 2000 .

[213]  S. Srinivasula,et al.  Structure-based discovery of an organic compound that binds Bcl-2 protein and induces apoptosis of tumor cells. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[214]  K. Mori,et al.  Synthesis and Absolute Configuration of Hongoquercin A, an Antibacterial Sesquiterpene‐Substituted Orsellinic Acid Isolated as a Fungal Metabolite , 2000 .

[215]  A. A. Akhrem,et al.  Chemistry of 2-Acylcycloalkane-1,3-diones. , 1999, Chemical reviews.

[216]  D. Shi,et al.  A Convenient Synthesis of 3-Aryl-3-(5,5-dimethyl-3-hydroxy-2-cyclohexene-1-one-2-yl) Propanic Esters Catalyzed by KF-Alumina , 1998 .

[217]  M. P. Singh,et al.  Hongoquercins, new antibacterial agents from the fungus LL-23G227: fermentation and biological activity. , 1998, The Journal of antibiotics.

[218]  G. Carter,et al.  Hongoquercins A and B, new sesquiterpenoid antibiotics: isolation, structure elucidation, and antibacterial activity. , 1998, The Journal of antibiotics.

[219]  A. Calignano,et al.  Synthesis and pharmacological activity of 2-oxo-(2H) 1-benzopyran-3-carboxamide derivatives , 1993 .

[220]  J. Springer,et al.  Paspaline and paspalicine, two indole-mevalonate metabolites from Claviceps paspali. , 1980 .

[221]  W. Turner.  The isolation and structures of the fungal metabolites lapidosin and diversonol , 1979 .