[EN] PROCESS FOR ASYMETRIC METHYLALLYLATION IN THE PRESENCE OF A 2, 2 ' - SUBSTITUTED 1, 1 ' -BI - 2 -NAPHTHOL CATALYST [FR] PROCÉDÉ POUR MÉTHYLALLYLATION ASYMÉTRIQUE EN PRÉSENCE D'UN CATALYSEUR NAPHTOL-2-BI-1,1' SUBSTITUÉ 2, 2'
[EN] PROCESS FOR ASYMETRIC METHYLALLYLATION IN THE PRESENCE OF A 2, 2 ' - SUBSTITUTED 1, 1 ' -BI - 2 -NAPHTHOL CATALYST [FR] PROCÉDÉ POUR MÉTHYLALLYLATION ASYMÉTRIQUE EN PRÉSENCE D'UN CATALYSEUR NAPHTOL-2-BI-1,1' SUBSTITUÉ 2, 2'
Asymmetric Methallylation of Ketones Catalyzed by a Highly Active Organocatalyst 3,3′-F<sub>2</sub>-BINOL
作者:Yongda Zhang、Ning Li、Bo Qu、Shengli Ma、Heewon Lee、Nina C. Gonnella、Joe Gao、Wenjie Li、Zhulin Tan、Jonathan T. Reeves、Jun Wang、Jon C. Lorenz、Guisheng Li、Diana C. Reeves、Ajith Premasiri、Nelu Grinberg、Nizar Haddad、Bruce Z. Lu、Jinhua J. Song、Chris H. Senanayake
DOI:10.1021/ol400498a
日期:2013.4.5
(S)-3,3'-F-2-BINOL has been synthesized for the first time and demonstrated as a highly active organocatalyst for asymmetric methallylation of ketones. Up to 98:2 enantioselectivity and 99% yield were obtained with 5 mol % catalyst loading. The catalyst (S)-3,3'-F-2-BINOL could be easily recovered and reused.
Allylboronsäureester aus allylzinn-verbindungen
作者:Reinhard W. Hoffmann、Giso Feussner、Hans-Jaochim Zeiss、Sabine Schulz
DOI:10.1016/s0022-328x(00)93424-7
日期:1980.3
HOFFMANN R. W.; FEUSSNER G.; ZEISS H.-J.; SCHULZ S., J. ORGANOMETAL. CHEM., 1980, 187, NO 3, 321-329
作者:HOFFMANN R. W.、 FEUSSNER G.、 ZEISS H.-J.、 SCHULZ S.
DOI:——
日期:——
[EN] PROCESS FOR ASYMETRIC METHYLALLYLATION IN THE PRESENCE OF A 2, 2 ' - SUBSTITUTED 1, 1 ' -BI - 2 -NAPHTHOL CATALYST<br/>[FR] PROCÉDÉ POUR MÉTHYLALLYLATION ASYMÉTRIQUE EN PRÉSENCE D'UN CATALYSEUR NAPHTOL-2-BI-1,1' SUBSTITUÉ 2, 2'
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012122152A1
公开(公告)日:2012-09-13
Disclosed are a process and catalysts useful for carrying out asymmetric methlyallylations. The catalysts used in the invention have the formula (IV): wherein X1, X2, R3 and R4 are as defined herein. Compounds made by the process of the invention can be used to prepare pharmaceutically active compounds such as 11-β- hydroxysteroid hydrogenase type 1 (11-β-HSD1) inhibitors including 1, 3-disubstituted oxazinan-2-ones.