Ravindra Kumar

发表

Synthesis of Novel Bicyclo[2.2.1] Ribonucleosides: 2'-Amino- and 2'-Thio-LNA Monomeric Nucleosides.

J. Wengel, Sanjay K. Singh, Ravindra Kumar, 1998, The Journal of organic chemistry.

Synthesis of 2′-Amino-LNA: A Novel Conformationally Restricted High-Affinity Oligonucleotide Analogue with a Handle.

J. Wengel, Sanjay K. Singh, Ravindra Kumar, 1999 .

The eight stereoisomers of LNA (Locked Nucleic Acid): A remarkable family of strong RNA binding molecules

S. Pitsch, J. Wengel, P. Nielsen, 2000 .

Synthesis and restricted furanose conformations of three novel bicyclic thymine nucleosides: a xylo-LNA nucleoside, a 3′-O,5′-C-methylene-linked nucleoside, and a 2′-O,5′-C-methylene-linked nucleoside

J. Wengel, V. Rajwanshi, Ravindra Kumar, 1999 .

High-affinity nucleic acid recognition using ‘LNA’ (locked nucleic acid, β-D-ribo configured LNA), ‘xylo-LNA’ (β-D-xylo configured LNA) or ‘α-L-LNA’ (α-L-ribo configured LNA)

J. Wengel, V. Rajwanshi, Ravindra Kumar, 1999 .

LNA (LOCKED NUCLEIC ACID)

C. Olsen, J. Skouv, J. Wengel, 1999 .

One‐Step Stereospecific Strategy for the Construction of the Core Structure of the 5,11‐Methanomorphanthridine Alkaloids in Racemic as well as in Optically Pure Form: Synthesis of (±)‐Pancracine and (±)‐Brunsvigine

V. Puranik, G. Pandey, Prabal Banerjee, 2011 .

Redox-neutral functionalization of α-Csp3–H bonds of secondary cyclic amines: a highly atom-economical strategy for N-arylation/formal cross-dehydrogenative couplings

Ravindra Kumar, Priyanka A. Jha, Saddam Husen, 2021 .

Corrigendum: Strategic Utilization of Multifunctional Carbene for Direct Synthesis of Carboxylic-Phosphinic Mixed Anhydride from CO2.

M. Ohashi, S. Ogoshi, Sunit Hazra, 2016, Angewandte Chemie.

A comparison of the solution structures of an LNA:DNA duplex and the unmodified DNA:DNA duplex

J. Wengel, J. Jacobsen, Sanjay K. Singh, 2001 .

NMR studies of fully modified locked nucleic acid (LNA) hybrids: solution structure of an LNA:RNA hybrid and characterization of an LNA:DNA hybrid.

J. Wengel, J. Jacobsen, Ravindra Kumar, 2004, Bioconjugate chemistry.

Enantioselective alkylation of aldehydes using functionalized alkylboron reagents catalyzed by a chiral titanium complex.

T. Harada, Ravindra Kumar, H. Kawasaki, 2013, Organic letters.

LNA (Locked Nucleic Acids): Synthesis of the adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil bicyclonucleoside monomers, oligomerisation, and unprecedented nucleic acid recognition

Poul Nielsen, Carl Erik Olsen, C. Olsen, 1998 .

Stereospecific route to 5,11-methanomorphanthridine alkaloids via intramolecular 1,3-dipolar cycloaddition of nonstabilized azomethine ylide: formal total synthesis of (+/-)-pancracine.

V. Puranik, G. Pandey, Prabal Banerjee, 2005, Organic letters.

Catalytic Synthesis of Isoquinolines via Intramolecular Migration of N-Aryl Sulfonyl Groups on 1,5-Yne-Imines

S. Ogoshi, Ravindra Kumar, Chika Nishimura, 2020 .

On cardioactive steroids. Communication XV. A stereoselective synthesis of (21R)‐21‐methyldigitoxigenin, a fully active cardenolide with a wide margin of safety: A contribution to the topology of the Digitalis receptors

Ravindra Kumar, T. Y. Tsai, K. Wiesner, 1984 .

Efficient Synthesis of Polycyclic γ-Lactams by Catalytic Carbonylation of Ene-Imines via Nickelacycle Intermediates.

M. Ohashi, A. Riera, S. Ogoshi, 2017, Angewandte Chemie.

Synthesis and characterization of Bis(μ-sulfido)bis[{O,O-dimethyldithiophosphato}oxomolybdenum(V)]. Crystal structure of Mo2O2(Φ-S2)[S2P(OMe)2]2.C6H6

M. Hursthouse, M. Light, J. Drake, 2006 .

Nickel(0)/N-Heterocyclic Carbene-Catalyzed Asymmetric [2 + 2 + 2] Cycloaddition of Two Enones and an Alkyne: Access to Cyclohexenes with Four Contiguous Stereogenic Centers.

M. Ohashi, Tadashi Mori, S. Ogoshi, 2015, Organic letters.

SYNTHESIS AND PHARMACOLOGICAL EVALUATION: ANTIMICROBIAL, ANTI-INFLAMMATORY, ANALGESIC, ULCEROGENIC PROPERTIES OF SEVERAL BIS-HETEROCYCLIC DERIVATIVES

Ravindra Kumar, Hament Panwar, 2015 .

A STUDY OF SUBSTITUTED THIAZOLIDINONES: SYNTHESIS AND ANTIMICROBIAL EVALUATION OF 2-({5-CHLORO-3-METHYL-1-(4- METHYLPYRIDIN-2-YL)PYRAZOLIDIN-4-YL}-3-SUBSTITUTED PHENYLTHIAZOLIDIN-4-ONES

Ravindra Kumar, Hament Panwar, D. Jo, 2015 .

Synthesis, spectroscopic characterization and structural studies of bromodioxodimethylsulfoxide (N,N′-dialkyldithiocarbamates and O-alkyl dithiocarbonate)molybdenum(VI) complexes: Crystal structures of MoO2Br2(OSMe2)2 and MoO2Br2(C12H8N2) · CH2Cl2

M. Hursthouse, M. Light, J. Drake, 2006 .

Nickel(0)-catalyzed Coupling Reactions of Carbonyls and Alkenes with Reducing Reagents Giving Six- and Seven-membered Benzocycloalkanols

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2017 .

Nickel(0)-catalyzed intramolecular reductive coupling of alkenes and aldehydes or ketones with hydrosilanes.

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2016, Chemical communications.

Hydrogen-Bond-Guided Reaction of Cyclohexadienone-aldehydes with Amines: Synthesis of an Aminal Group Containing a Fused Tetracyclic Framework.

M. Grellier, Ravindra Kumar, Rajesh K. Patel, 2020, Organic letters.

Nickel(0)-Catalyzed Enantio- and Diastereoselective Synthesis of Benzoxasiloles: Ligand-Controlled Switching from Inter- to Intramolecular Aryl-Transfer Process.

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2015, Journal of the American Chemical Society.

Highly efficient activation of organosilanes with η2-aldehyde nickel complexes: key for catalytic syntheses of aryl-, vinyl-, and alkynyl-benzoxasiloles.

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2014, Journal of the American Chemical Society.

Nickel-Catalyzed Enantioselective Synthesis of Cyclobutenes via [2+2] Cycloaddition of α,β-Unsaturated Carbonyls with 1,3-Enynes

A. Ohnishi, M. Ohashi, S. Ogoshi, 2016 .

Site-selective 1,3-double functionalization of arenes using para-quinol, C–N, and C–C/C–P three-component coupling

Ravindra Kumar, Saddam Husen, A. Chauhan, 2020 .

Catalytic enantioselective synthesis of α-substituted secondary allylic alcohols from terminal alkynes and aldehydes via vinylaluminum reagents.

T. Harada, Ravindra Kumar, H. Kawasaki, 2013, Chemistry.

Zirconium (IV), Thorium (IV) and Dioxouranium (VI) Complexes of Dibasic Tridentate Schiff Bases

Nepal Singh, Ravindra Kumar, A. Agarwal, 1979 .

Quantitative Estimation of Ruthenium(III) Using Morpholine-4-Carbodithioate as a New Analytical Reagent

Nepal Singh, Ravindra Kumar, B. Kansal, 1979 .

Catalytic Friedel-Crafts Alkylative Desymmetrization of Cyclohexa-2,5-dienones: Access to Linear and Bridged Polycyclic Pyrroles and 3-Arylpyrroles.

R. Kant, Ravindra Kumar, Rajesh K. Patel, 2022, Organic letters.

Synthesis and Spectroscopic Characterization of Mononuclear Oxomolybdenum(IV)O,O′-Ditolyl Dithiophosphate Complexes and Their Adducts With 2,2′-Bipyridyl and 1,10-Phenanthroline

Ravindra Kumar, K. Saraswat, 2015 .

Synthesis and characterization of binuclear oxomolybdenum(V) and dioxomolybdenum(VI) O,O′-ditolyl dithiophosphate complexes.: Crystal structures of Mo2O3[S2P(OC6H4Me-o)2]4, Mo2O3[S2P(OC6H4Me-m)2]4 and MoO2[S2P(OC6H4Me-p)2]2

M. Hursthouse, M. Light, J. Drake, 2007 .

Direct Use of Phosphonium Salts for Alkylation of p-Quinols: Formal α-Arylation of Carbonyls via a 5-Membered Betaine-Type Intermediate.

Ravindra Kumar, Saddam Husen, Priyankar Jha, 2022, Organic letters.

A homoisoflavanone from Pterocarpus marsupium

Subhash C. Jain, V. Rajwanshi, B. R. Babu, 1997 .

Synthesis of 5,7-Dihydroxy-6-methoxy-2-(2-hydroxy-4-methoxyphenyl)-4H-1-benzopyran-4-one and Reassignment of Structure of Tamaridone1

Subhash C. Jain, V. Rajwanshi, S. Talwar, 1997 .

High‐Affinity Nucleic Acid Recognition Using ′LNA′ (Locked Nucleic Acid, β‐D‐ribo Configured LNA), ′xylo‐LNA′ (β‐D‐xylo Configured LNA) or ′α‐L‐LNA′ (α‐L‐ribo Configured LNA).

J. Wengel, V. Rajwanshi, Ravindra Kumar, 2000 .

Synthesis of 2‘-Amino-LNA: A Novel Conformationally Restricted High-Affinity Oligonucleotide Analogue with a Handle

J. Wengel, Sanjay K. Singh, Ravindra Kumar, 1998 .

Two-step synthesis of chiral fused tricyclic scaffolds from phenols via desymmetrization on nickel

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2017, Nature Communications.

Perchlorate selective sensor based on a newly synthesized hydrogen-bonding diamide receptor

A. Jain, Ravindra Kumar, J. Raisoni, 2007 .

PERCHLORATE ION SELECTIVE SENSOR BASED ON NEWLY SYNTHESIZED N1, N3 (114-BENZOIMIDAZOLE.241) ISOPHTHALAMIDE RECEPTOR

Ravindra Kumar, 2006 .

The First Analogues of LNA (Locked Nucleic Acids): Phosphorothioate-LNA and 2′-Thio-LNA

J. Wengel, A. Koshkin, M. Meldgaard, 1998 .

MICROWAVE INDUCED SYNTHESIS AND ΑΝΤΙ MICROBIAL ACTIVITIES OF SOME [3-(2-HYDROXYPHENYL)-5-ARYL-2-PYRAZOLINYL]-4-THIAZOLIDENONES

Ravindra Kumar, Birbal Bajia, Jayanti Rajora, 2007 .

On cardioactive steroids. XII. The synthesis of (natural) bufalin and α′‐isobufalin

Ravindra Kumar, T. Y. Tsai, M. Tsubuki, 1983 .

Catalyst-Controlled Diastereoselective Synthesis of Bridged [3.3.1] Bis(Indolyl)-Oxanes and Oxepanes via Desymmetrization of Bis(Indolyl)-Cyclohexadienones.

A. Mishra, R. Kant, Ravindra Kumar, 2023, Organic letters.

NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS, 20(4–7), 389–396 (2001) LNA (LOCKED NUCLEIC ACID) AND THE DIASTEREOISOMERIC α-L-LNA: CONFORMATIONAL TUNING AND HIGH-AFFINITY RECOGNITION OF DNA/RNA TARGETS

J. Wengel, J. Jacobsen, R. Kumar, 2003 .

Strategic Utilization of Multifunctional Carbene for Direct Synthesis of Carboxylic–Phosphinic Mixed Anhydride from CO2

M. Ohashi, S. Ogoshi, Sunit Hazra, 2016, Angewandte Chemie.

Synthesis of Bioactive Azetidinones of 4-Phenyl-1, 3-thiazole-2-amine

A. Shukla, Ravindra Kumar, Gurukul Kangri, 2013 .

LNA (LOCKED NUCLEIC ACID) AND THE DIASTEREOISOMERIC α-L-LNA: CONFORMATIONAL TUNING AND HIGH-AFFINITY RECOGNITION OF DNA/RNA TARGETS

J. Wengel, J. Jacobsen, V. Rajwanshi, 2001, Nucleosides, nucleotides & nucleic acids.

Nickel(0)-Catalyzed Enantio- and Diastereoselective Synthesis of Benzoxasiloles: Ligand-Controlled Switching from Inter- to Intramolecular Aryl-Transfer Process.

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2015, Journal of the American Chemical Society.

Asymmetric C  C Bond Formation Reactions via Nickelacycles

S. Ogoshi, Ravindra Kumar, 2020 .

Highly efficient activation of organosilanes with η2-aldehyde nickel complexes: key for catalytic syntheses of aryl-, vinyl-, and alkynyl-benzoxasiloles.

M. Ohashi, S. Ogoshi, Ravindra Kumar, 2014, Journal of the American Chemical Society.

Nickel-Catalyzed Enantioselective Synthesis of Cyclobutenes via [2+2] Cycloaddition of α,β-Unsaturated Carbonyls with 1,3-Enynes

A. Ohnishi, M. Ohashi, S. Ogoshi, 2016, Synthesis.