2,6-吡啶二甲腈置于sodium Methylate体系中,用 二氯甲烷 用作溶剂,化学反应 84.0H,反应生成2,6-二[(4S)-4-苯基-2-恶唑啉基]吡啶 参考文献:Kinetic Resolution By Copper-Catalyzed Azide-alkyne Cycloaddition 标题:Kinetic Resolution By Copper-Catalyzed Azide-alkyne Cycloaddition 摘要:The Use Of Chiral Pybox Ligands Imparts Enantioselectivity To The Cu-I-Catalyzed Azide-Alkyne Cycloaddition Reaction,In The Form Of Kinetic Resolution Of Alpha-Chiral Azides And Desymmetrization Of Gem-Diazides. While Levels Of Selectivity Are Modest,The Results Show Unequivocally That The Process Benefits From Ligand-Accelerated Catalysis. (C) 2005 Elsevier Ltd. All Rights Reserved. Doi:10.1016/j.Tetlet.2005.05.019
专利号:US-11926589-B2 优先权日:2019-07-09 标 题 :Process for the synthesis of non-racemic cyclohexenes 发明人:REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND 权利人:BASF CORP; CALIFORNIA INST OF TECHN 摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.
专利号:US-8431745-B2 优先权日:2006-03-29 标题 :Process for preparation of HIV protease inhibitors 发明人:CRAWFORD KENNETH R; DOWDY ERIC D; GUTIERREZ ARNOLD; POLNIASZEK RICHARD P; YU RICHARD HUNG CHIU 权利人:CRAWFORD KENNETH R; DOWDY ERIC D; GUTIERREZ ARNOLD; POLNIASZEK RICHARD P; YU RICHARD HUNG CHIU; GILEAD SCIENCES INC 摘要:A process for the synthesis of bisfuran intermediates useful for preparing antiviral HIV protease inhibitor compounds is hereby disclosed.
专利号:WO-2021007141-A1 优先权日:2019-07-09 标 题 :Process for the synthesis of non-racemic cyclohexenes
专利号:IL-289459-B1 优先权日:2019-07-09 标题:Process for the synthesis of non-racemic cyclohexenes
专利号:US-2022267247-A1 优先权日:2019-07-09 标题:Process for the synthesis of non-racemic cyclohexenes
专利号:CN-115894232-A 优先权日:2022-11-18 标题 :A method for the asymmetric synthesis of nickel-catalyzed carbon-based α-position esters
摘要:Tian, T.; Li, Z., Science of Synthesis Knowledge Updates, (2020) 2, 376. 摘要:Ipaktschi, J.; Saidi, M. R., Science of Synthesis Knowledge Updates, (2012) 4, 372. 摘要:Johnson, J. B., Science of Synthesis: Stereoselective Synthesis, (2011) 3, 774. 摘要:Carreira, E. M.; Aschwanden, P., Science of Synthesis: Stereoselective Synthesis, (2011) 2, 517. 摘要:Chanda, A.; Fokin, V. V., Science of Synthesis: Water in Organic Synthesis, (2012) 1, 722.