Amidate ligand design effects in zirconium-catalyzed enantioselective hydroamination of aminoalkenes
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[1] Haibin Song,et al. Synthesis and characterization of group 4 metal amides with new C2-symmetric binaphthyldiamine-based ligands and their use as catalysts for asymmetric hydroamination/cyclization. , 2010, Dalton transactions.
[2] L. Schafer,et al. Zirconium bis(pyridonate): a modified amidate complex for enhanced substrate scope in aminoalkene cyclohydroamination. , 2010, Dalton transactions.
[3] A. Reznichenko,et al. C2-Symmetric Zirconium Bis(Amidate) Complexes with Enhanced Reactivity in Aminoalkene Hydroamination , 2010 .
[4] S. Buchwald,et al. Rhodium-catalyzed asymmetric intramolecular hydroamination of unactivated alkenes. , 2009, Angewandte Chemie.
[5] L. Schafer,et al. Broadening the scope of group 4 hydroamination catalysis using a tethered ureate ligand. , 2009, Journal of the American Chemical Society.
[6] Y. Takemoto,et al. Gold(I)-catalyzed tandem reactions initiated by hydroamination of alkynyl carbamates: application to the synthesis of nitidine. , 2009, The Journal of organic chemistry.
[7] L. Ackermann,et al. Palladium-catalyzed sequential indole synthesis using sterically hindered amines , 2009 .
[8] P. Eisenberger,et al. Tantalum-amidate complexes for the hydroaminoalkylation of secondary amines: enhanced substrate scope and enantioselective chiral amine synthesis. , 2009, Angewandte Chemie.
[9] A. Barrett,et al. Heavier group 2 metals and intermolecular hydroamination: a computational and synthetic assessment. , 2009, Journal of the American Chemical Society.
[10] Pavel A. Dub,et al. Platinum-Catalyzed Ethylene Hydroamination with Aniline: Synthesis, Characterization, and Studies of Intermediates , 2009 .
[11] G. Bertrand,et al. Gold-catalyzed intermolecular Markovnikov hydroamination of allenes with secondary amines. , 2009, Organic letters.
[12] Louisa J. E. Stanlake,et al. Bis- and Mono(amidate) Complexes of Yttrium: Synthesis, Characterization, and Use as Precatalysts for the Hydroamination of Aminoalkenes , 2009 .
[13] L. Schafer,et al. N,O‐Chelates of Group 4 Metals: Contrasting the Use of Amidates and Ureates in the Synthesis of Metal Dichlorides , 2009 .
[14] K. Hultzsch,et al. Intramolecular hydroamination/cyclization of aminoalkenes catalyzed by diamidobinaphthyl magnesium- and zinc-complexes , 2009 .
[15] Guofu Zi,et al. Synthesis and X-ray structures of rhodium complexes with new chiral biaryl-based NHC-ligands , 2009 .
[16] A. Steiner,et al. Addition-hydroamination reactions of propargyl cyanamides: rapid access to highly substituted 2-aminoimidazoles. , 2009, Angewandte Chemie.
[17] L. Ackermann,et al. Two titanium-catalyzed reaction sequences for syntheses of pyrroles from (E/Z)-chloroenynes or alpha-haloalkynols. , 2009, Organic letters.
[18] I. Markó,et al. Base‐Catalysed Intramolecular Hydroamination of Vinyl Sulfides , 2009 .
[19] Seong Du Lee,et al. Intermolecular hydroamination of ethylene and 1-alkenes with cyclic ureas catalyzed by achiral and chiral gold(I) complexes. , 2009, Journal of the American Chemical Society.
[20] D. Spasyuk,et al. Regioselective Hydroamination of Acrylonitrile Catalyzed by Cationic Pincer Complexes of Nickel(II) , 2009 .
[21] G. Kociok‐Köhn,et al. Bis(imidazolin-2-ylidene-1-yl)borate Complexes of the Heavier Alkaline Earths: Synthesis and Studies of Catalytic Hydroamination , 2009 .
[22] M. Stradiotto,et al. Intramolecular hydroamination of unactivated alkenes with secondary alkyl- and arylamines employing [Ir(COD)Cl]2 as a catalyst precursor. , 2009, Organic letters.
[23] Guofu Zi,et al. Synthesis of Group 4 Metal Amides with New Chiral Biaryldiamine-Based Ligands and Their Use as Catalysts for Asymmetric Hydroamination/Cyclization , 2009 .
[24] P. Eisenberger,et al. Selective C-H activation alpha to primary amines. Bridging metallaaziridines for catalytic, intramolecular alpha-alkylation. , 2009, Journal of the American Chemical Society.
[25] L. Fadini,et al. Asymmetric hydroamination of acrylonitrile derivatives catalyzed by Ni(II)-complexes , 2008 .
[26] J. Collin,et al. Chiral Amido Alkyl Rare Earth Complexes: A New Family of Asymmetric Intramolecular Hydroamination Catalysts , 2008 .
[27] E. Valente,et al. An improved method for the synthesis of zirconium (CCC-N-heterocyclic carbene) pincer complexes and applications in hydroamination. , 2008, Chemical communications.
[28] T. Müller,et al. Hydroamination: direct addition of amines to alkenes and alkynes. , 2008, Chemical reviews.
[29] J. Hartwig,et al. Intermolecular, catalytic asymmetric hydroamination of bicyclic alkenes and dienes in high yield and enantioselectivity. , 2008, Journal of the American Chemical Society.
[30] Louisa J. E. Stanlake,et al. Rare-earth amidate complexes. Easily accessed initiators for epsilon-caprolactone ring-opening polymerization. , 2008, Inorganic chemistry.
[31] J. Collin,et al. Convenient method for the rapid generation of highly active and enantioselective yttrium catalysts for asymmetric hydroamination. , 2008, Chemical communications.
[32] G. Bertrand,et al. Homogeneous catalytic hydroamination of alkynes and allenes with ammonia. , 2008, Angewandte Chemie.
[33] Weiping Tang,et al. Base-catalyzed intramolecular hydroamination of conjugated enynes. , 2008, Organic letters.
[34] C. Bender,et al. Sterically Hindered Mono(phosphines) as Supporting Ligands for the Platinum-Catalyzed Hydroamination of Amino Alkenes , 2008 .
[35] Guofu Zi,et al. Synthesis of amidolanthanides with new chiral biaryl-based NNO ligands and their use as catalysts for enantioselective hydroamination/cyclization. , 2008, Inorganic chemistry.
[36] Guofu Zi,et al. Enantioselective Hydroamination/Cyclization Catalyzed by Organolanthanide Amides Derived from a New Chiral Ligand, (S)-2-(Pyrrol-2-ylmethyleneamino)-2′-(dimethylamino)-1,1′-binaphthyl , 2008 .
[37] P. Roesky,et al. Aminotroponiminate Complexes of the Heavy Alkaline Earth and the Divalent Lanthanide Metals as Catalysts for the Hydroamination/Cyclization Reaction , 2008 .
[38] F. E. Michael,et al. Mechanistic studies of a palladium-catalyzed intramolecular hydroamination of unactivated alkenes: protonolysis of a stable palladium alkyl complex is the turnover-limiting step. , 2008, Journal of the American Chemical Society.
[39] J. Hartwig,et al. Mild, rhodium-catalyzed intramolecular hydroamination of unactivated terminal and internal alkenes with primary and secondary amines. , 2008, Journal of the American Chemical Society.
[40] L. Schafer,et al. Enhanced Reactivity Results in Reduced Catalytic Performance: Unexpected Ligand Reactivity of a Bis(N-2,6-diisopropylphenylperflourophenyl-amidate)titanium-bis(diethylamido) Hydroamination Precatalyst , 2007 .
[41] J. Collin,et al. Asymmetric hydroamination of non-activated carbon-carbon multiple bonds. , 2007, Dalton transactions.
[42] N. Chatani,et al. Anti-Markovnikov addition of both primary and secondary amines to terminal alkynes catalyzed by the TpRh(C2H4)2/PPh3 system. , 2007, Journal of the American Chemical Society.
[43] Benjamin D. Ward,et al. Imido-alkyne coupling in titanium complexes: New insights into the alkyne hydroamination reaction , 2007 .
[44] J. Hartwig,et al. Primary tert- and sec-allylamines via palladium-catalyzed hydroamination and allylic substitution with hydrazine and hydroxylamine derivatives. , 2007, Angewandte Chemie.
[45] K. Tomioka,et al. Catalytic asymmetric intramolecular hydroamination of aminoalkenes , 2007 .
[46] Yoshinori Yamamoto,et al. A route to 2-substituted tetrahydroquinolines via palladium-catalyzed intramolecular hydroamination of anilino-alkynes. , 2007, The Journal of organic chemistry.
[47] L. Ackermann,et al. TiCl4-catalyzed indirect anti-Markovnikov hydration of alkynes: application to the synthesis of benzo[b]furans. , 2007, The Journal of organic chemistry.
[48] C. Bender,et al. Gold(I)-catalyzed enantioselective hydroamination of N-allenyl carbamates. , 2007, Organic letters.
[49] T. Marks,et al. Constrained geometry organoactinides as versatile catalysts for the intramolecular hydroamination/cyclization of primary and secondary amines having diverse tethered C-C unsaturation. , 2007, Journal of the American Chemical Society.
[50] D. Riegert,et al. Neutral yttrium tris(amide) and ate complexes coordinated by an (R)-N,N'-diisopropyl -1,1 ' -binaphthyl -2,2' -diamido ligand as enantioselective catalysts for intramolecular hydroamination , 2007 .
[51] A. Clarke,et al. Structure−Activity Relationships for Group 4 Biaryl Amidate Complexes in Catalytic Hydroamination/Cyclization of Aminoalkenes , 2007 .
[52] L. Schafer,et al. An easy-to-use, regioselective, and robust bis(amidate) titanium hydroamination precatalyst: mechanistic and synthetic investigations toward the preparation of tetrahydroisoquinolines and benzoquinolizine alkaloids. , 2007, Chemistry.
[53] F. Toste,et al. Gold(I)-catalyzed enantioselective intramolecular hydroamination of allenes. , 2007, Journal of the American Chemical Society.
[54] T. Marks,et al. Organophosphine Oxide/Sulfide-Substituted Lanthanide Binaphtholate Catalysts for Enantioselective Hydroamination/Cyclization , 2007 .
[55] J. Kozak,et al. Chiral neutral zirconium amidate complexes for the asymmetric hydroamination of alkenes. , 2006, Angewandte Chemie.
[56] Miguel A. Esteruelas,et al. Preparation and X-ray Structures of Alkyl−Titanium(IV) Complexes Stabilized by Indenyl Ligands with a Pendant Ether or Amine Substituent and Their Use in the Catalytic Hydroamination of Alkynes , 2007 .
[57] Phil Ho Lee,et al. Internal Alkene Hydroaminations Catalyzed by Zirconium(IV) Complexes and Asymmetric Alkene Hydroaminations Catalyzed by Yttrium(III) Complexes , 2006 .
[58] Wenbin Lin,et al. Palladium‐Catalyzed Intermolecular Asymmetric Hydroamination with 4,4′‐Disubstituted BINAP and SEGPHOS , 2006 .
[59] N. Morita,et al. Gold‐Catalyzed Cycloisomerization of α‐Aminoallenes to 3‐Pyrrolines –Optimization and Mechanistic Studies , 2006 .
[60] R. Bergman,et al. Zirconium Bis(Amido) Catalysts for Asymmetric Intramolecular Alkene Hydroamination. , 2006, Organometallics.
[61] L. Schafer,et al. Group 4 Bis(pyrimidinoxide) Complexes. Investigations of Electronic Effects in Catalytic Hydroamination , 2006 .
[62] L. Schafer,et al. A Pentagonal Pyramidal Zirconium Imido Complex for Catalytic Hydroamination of Unactivated Alkenes , 2006 .
[63] A. Zulys,et al. A chiral-bridged aminotroponiminate complex of lutetium as catalyst for the asymmetric hydroamination , 2006 .
[64] J. Hartwig,et al. Direct measurement of the thermodynamics of vinylarene hydroamination. , 2006, Journal of the American Chemical Society.
[65] A. Zulys,et al. Aminotroponate Zinc Complexes as Catalysts for the Intramolecular Hydroamination of Alkenes and Alkynes , 2006 .
[66] L. Schafer,et al. Bis(amidate) titanium precatalyst for the intermolecular hydroamination of allenes , 2006 .
[67] F. Hampel,et al. Base-catalysed asymmetric hydroamination/cyclisation of aminoalkenes utilising a dimeric chiral diamidobinaphthyl dilithium salt. , 2006, Chemical communications.
[68] Naoko Nishina,et al. Gold-catalyzed intermolecular hydroamination of allenes with arylamines and resulting high chirality transfer. , 2006, Angewandte Chemie.
[69] Yoshinori Yamamoto,et al. Palladium-catalyzed intramolecular asymmetric hydroamination, hydroalkoxylation, and hydrocarbonation of alkynes. , 2006, The Journal of organic chemistry.
[70] F. Michael,et al. Room temperature palladium-catalyzed intramolecular hydroamination of unactivated alkenes. , 2006, Journal of the American Chemical Society.
[71] Chuan He,et al. Efficient gold-catalyzed hydroamination of 1,3-dienes. , 2006, Angewandte Chemie.
[72] F. Hampel,et al. 3,3'-Bis(trisarylsilyl)-substituted binaphtholate rare earth metal catalysts for asymmetric hydroamination. , 2006, Journal of the American Chemical Society.
[73] D. Riegert,et al. Enantioselective intramolecular hydroamination catalyzed by lanthanide ate complexes coordinated by N-substituted (R)-1,1'-binaphthyl-2,2'-diamido ligands. , 2006, The Journal of organic chemistry.
[74] H. Tsurugi,et al. Neutral versus cationic Group 3 metal alkyl catalysts: performance in intramolecular hydroamination/cyclisation. , 2006, Dalton transactions.
[75] Miguel A. Esteruelas,et al. New Half-Sandwich Alkyl, Aryl, Aryloxide, and Propargyloxide Titanium(IV) Complexes Containing a Cyclopentadienyl Ligand with a Pendant Ether Substituent: Behavior and Influence in the Hydroamination of Alkynes of the Ether Group , 2006 .
[76] A. Odom. New C-N and C-C bond forming reactions catalyzed by titanium complexes. , 2005, Dalton transactions.
[77] A. Zulys,et al. Bis(phosphinimino)methanides as ligands in divalent lanthanide and alkaline earth chemistry – synthesis, structure, and catalysis , 2005 .
[78] Y. A. Wang,et al. Structure, bonding, and reactivity of Ti and Zr amidate complexes: DFT and X-ray crystallographic studies. , 2005, Inorganic chemistry.
[79] Phil Ho Lee,et al. Intramolecular alkene hydroaminations catalyzed by a bis(thiophosphinic amidate) Zr(IV) complex. , 2005, Chemical communications.
[80] Khuong Q. Vuong,et al. Intramolecular hydroamination with rhodium(I) and iridium(I) complexes containing a phosphine-N-heterocyclic carbene ligand , 2005 .
[81] Z. Huo,et al. Intramolecular hydroamination of alkynes catalyzed by Pd(PPh3)4/triphenylphosphine under neutral conditions. , 2005, The Journal of organic chemistry.
[82] K. Hultzsch. Catalytic asymmetric hydroamination of non-activated olefins. , 2005, Organic & biomolecular chemistry.
[83] L. Schafer,et al. Intramolecular hydroamination of unactived olefins with Ti(NMe2)4 as a precatalyst. , 2005, Organic letters.
[84] T. Livinghouse,et al. Enantioselective intramolecular alkene hydroaminations catalyzed by yttrium complexes of axially chiral bis(thiolate) ligands. , 2005, Organic letters.
[85] K. Hultzsch. Transition Metal‐Catalyzed Asymmetric Hydroamination of Alkenes (AHA) , 2005 .
[86] M. Hill,et al. Calcium-mediated intramolecular hydroamination catalysis. , 2005, Journal of the American Chemical Society.
[87] C. Bender,et al. Platinum-catalyzed intramolecular hydroamination of unactivated olefins with secondary alkylamines. , 2005, Journal of the American Chemical Society.
[88] Hikaru Hasegawa,et al. Organolanthanide Catalyzed Intramolecular 5-endo-dig Hydroamination: An Unusual Anti-Markovnikov Cyclization , 2004 .
[89] K. Hultzsch,et al. Hydroamination/cyclization of aminoalkenes using cationic zirconocene and titanocene catalysts. , 2004, Angewandte Chemie.
[90] F. Hampel,et al. Synthesis and Characterization of Alkyllanthanum Biphenolate Complexes as Catalysts for Hydroamination/Cyclization and Hydrosilylation , 2004 .
[91] P. Scott,et al. Chiral biarylamido/anisole complexes of yttrium in enantioselective aminoalkene hydaroamination/cyclisation. , 2004, Dalton transactions.
[92] R. Bergman,et al. Catalytic hydroamination of alkynes and norbornene with neutral and cationic tantalum imido complexes. , 2004, Organic letters.
[93] T. Marks,et al. Organolanthanide-catalyzed hydroamination. , 2004, Accounts of chemical research.
[94] Paul G. Hayes,et al. Scandium-Catalyzed Intramolecular Hydroamination. Development of a Highly Active Cationic Catalyst , 2004 .
[95] P. Scott,et al. Zirconium catalysed enantioselective hydroamination/cyclisation. , 2004, Chemical communications.
[96] L. Vendier,et al. Hydroamination of alkynes catalyzed by imido complexes of titanium and vanadium , 2004 .
[97] Benjamin D. Ward,et al. Synthesis and structural characterization of an azatitanacyclobutene: the key intermediate in the catalytic anti-Markovnikov addition of primary amines to ?-alkynesDedicated to Professor Mike Lappert on the occasion of his 75th birthday.Electronic supplementary information (ESI) available: experimen , 2004 .
[98] K. Hultzsch,et al. Kinetic resolution of chiral aminoalkenes via asymmetric hydroamination/cyclisation using binaphtholate yttrium complexes. , 2004, Chemical communications.
[99] Yahong Li,et al. Titanium hydrazido and imido complexes: synthesis, structure, reactivity, and relevance to alkyne hydroamination. , 2004, Journal of the American Chemical Society.
[100] L. Schafer,et al. Amidate complexes of titanium and zirconium: a new class of tunable precatalysts for the hydroamination of alkynes. , 2003, Chemical communications.
[101] J. Collin,et al. Lanthanide complexes derived from (R)-1,1'-binaphthyl-2,2'-bis(neopentylamine)--(Li(THF)4)(Ln[(R)-C20H12N2(C10H22)]2) (Ln = Sm, Yb)--novel catalysts for enantioselective intramolecular hydroamination. , 2003, Chemical communications.
[102] M. Beller,et al. A dramatic effect of aryloxo ligands on the titanium-catalyzed hydroamination of alkynes. , 2003, Organic letters.
[103] T. Marks,et al. C2-symmetric bis(oxazolinato)lanthanide catalysts for enantioselective intramolecular hydroamination/cyclization. , 2003, Journal of the American Chemical Society.
[104] L. Schafer,et al. Anti-Markovnikov intermolecular hydroamination: a bis(amidate) titanium precatalyst for the preparation of reactive aldimines. , 2003, Organic letters.
[105] F. Hampel,et al. Synthesis and characterization of new biphenolate and binaphtholate rare-Earth-metal amido complexes: catalysts for asymmetric olefin hydroamination/cyclization. , 2003, Chemistry.
[106] P. Scott,et al. Biaryl amine ligands for lanthanide catalysed enantioselective hydroamination/cyclisation of aminoalkenes , 2003 .
[107] P. Scott,et al. Chiral-at-metal organolanthanides: enantioselective aminoalkene hydroamination/cyclisation with non-cyclopentadienyls , 2003 .
[108] Frauke Pohlki,et al. The catalytic hydroamination of alkynes. , 2003, Chemical Society reviews.
[109] M. Beller,et al. Base-Catalyzed Hydroamination of Olefins: An Environmentally Friendly Route to Amines , 2002 .
[110] Yanhui Shi,et al. Intermolecular alkyne hydroaminations involving 1,1-disubstituted hydrazines. , 2002, Organic letters.
[111] M. Beller,et al. Anti-markovnikov hydroamination of terminal alkynes. , 2002, Angewandte Chemie.
[112] G. Yap,et al. Formation of a Guanidinate-Supported Titanium Imido Complex: A Catalyst for Alkyne Hydroamination , 2002 .
[113] S. Denmark,et al. Chiral fluoro ketones for catalytic asymmetric epoxidation of alkenes with oxone. , 2002, The Journal of organic chemistry.
[114] J. Hartwig,et al. A general nickel-catalyzed hydroamination of 1,3-dienes by alkylamines: catalyst selection, scope, and mechanism. , 2002, Journal of the American Chemical Society.
[115] S. Doye,et al. Cp*(2)TiMe(2): an improved catalyst for the intermolecular addition of n-alkyl- and benzylamines to alkynes. , 2002, The Journal of organic chemistry.
[116] T. Kondo,et al. Ruthenium-catalyzed intramolecular oxidative amination of aminoalkenes enables rapid synthesis of cyclic imines. , 2002, Journal of the American Chemical Society.
[117] R. Bergman,et al. The mechanism of hydroamination of allenes, alkynes, and alkenes catalyzed by cyclopentadienyltitanium-imido complexes: a density functional study. , 2001, Angewandte Chemie.
[118] A. Shafir,et al. Synthesis and structure of a linked-bis(amidate) ligand and some complexes with titanium. , 2001, Inorganic chemistry.
[119] M. Beller,et al. A convenient rhodium-catalyzed intermolecular hydroamination procedure for terminal alkynes. , 2001, The Journal of organic chemistry.
[120] Frauke Pohlki,et al. The Mechanism of the [Cp2 TiMe2 ]-Catalyzed Intermolecular Hydroamination of Alkynes. , 2001, Angewandte Chemie.
[121] M. Hatsuda,et al. A novel and facile racemization of chiral 1,1'-biaryl-2,2'-dicarboxylic acids. , 2001, The Journal of organic chemistry.
[122] J. Hartwig,et al. Palladium-catalyzed hydroamination of 1,3-dienes: a colorimetric assay and enantioselective additions. , 2001, Journal of the American Chemical Society.
[123] J. S. Johnson,et al. Imidotitanium complexes as hydroamination catalysts: substantially enhanced reactivity from an unexpected cyclopentadienide/amide ligand exchange. , 2001, Journal of the American Chemical Society.
[124] J. Hartwig,et al. Palladium-Catalyzed Intermolecular Hydroamination of Vinylarenes Using Arylamines , 2000 .
[125] Doye,et al. Intermolecular Hydroamination of Alkynes Catalyzed by Dimethyltitanocene. , 1999, Angewandte Chemie.
[126] G. Molander,et al. Lanthanide-Catalyzed Hydroamination of Hindered Alkenes in Synthesis: Rapid Access to 10,11-Dihydro-5H-dibenzo- [a,d]cyclohepten-5,10-imines , 1999 .
[127] T. Marks,et al. Intramolecular Hydroamination/Cyclization of Aminoallenes Catalyzed by Organolanthanide Complexes. Scope and Mechanistic Aspects , 1999 .
[128] T. Marks,et al. Organolanthanide-Catalyzed Hydroamination/Cyclization. Efficient Allene-Based Transformations for the Syntheses of Naturally Occurring Alkaloids , 1999 .
[129] A. Togni,et al. Some aspects of asymmetric catalysis with chiral ferrocenyl ligands , 1998 .
[130] T. Marks,et al. Organolanthanide-Catalyzed Intramolecular Hydroamination/Cyclization of Aminoallenes , 1998 .
[131] A. Togni,et al. The [IrCl(Diphosphine)]2/Fluoride System. Developing Catalytic Asymmetric Olefin Hydroamination , 1997 .
[132] T. Marks,et al. Diverse Mechanistic Pathways and Selectivities in Organo-f-Element-Catalyzed Hydroamination. Intermolecular Organolanthanide-Catalyzed Alkyne and Alkene Hydroamination , 1996 .
[133] V. Conticello,et al. Chiral Organolanthanides Designed for Asymmetric Catalysis. A Kinetic and Mechanistic Study of Enantioselective Olefin Hydroamination/Cyclization and Hydrogenation by C1-Symmetric Me2Si(Me4C5)(C5H3R*)Ln Complexes where R* = Chiral Auxiliary , 1994 .
[134] V. Conticello,et al. Stereoselection Effects in the Catalytic Hydroamination/Cyclization of Amino olefins at Chiral Organolanthanide Centers , 1992 .
[135] A. Baranger,et al. Stoichiometric and catalytic hydroamination of alkynes and allene by zirconium bisamides Cp2Zr(NHR)2 , 1992 .
[136] T. Marks,et al. Organolanthanide-Catalyzed Hydroamination. A Kinetic, Mechanistic, and Diastereoselectivity Study of the Cyclization of N-Unprotected Amino Olefins , 1992 .
[137] Z. Yoshida,et al. Urea as the most reactive and versatile nitrogen nucleophile for the palladium(2+)-catalyzed cyclization of unsaturated amines , 1988 .
[138] Shigeyoshi Kanoh,et al. Practical method for the synthesis and optical resolution of axially dissymmetric 6,6'-dimethylbiphenyl-2,2'-dicarboxylic acid. , 1987 .