NOVEL PICOLINAMIDE-CINCHONA ORGANOCATALYSTS AND DERIVATIVES
申请人:UNIVERSIDADE DE ÉVORA
公开号:US20160236184A1
公开(公告)日:2016-08-18
The present application describes a novel type of picolinamide-cinchona organocatalyst that allows for the successful transformation of ketimines to chiral amines with very high enantioselectivities and with the highest TOFs reported for any particular organocatalyst to date. These organocatalysts have also been immobilized to a variety of solid supports, including magneto-nanoparticles.
Asymmetric hydrogenation of N-tosylimines catalyzed by BINAP-ruthenium(II) complexes
作者:AndréB. Charette、André Giroux
DOI:10.1016/s0040-4039(96)01471-2
日期:1996.9
The asymmetric hydrogenation of N-tosylimines was accomplished with a catalytic amount of Ru[(R)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl](O2CCH3)2 to afford the corresponding amines in high enantiomeric excesses.
Highly enantioselective Rh-catalyzed transfer hydrogenation of N-sulfonyl ketimines
作者:Se Hun Kwak、Sun Ah Lee、Kee-In Lee
DOI:10.1016/j.tetasy.2010.04.047
日期:2010.4
species comprising N-sulfinyl and N-sulfonyl ketimine, oxime, and enamine derivatives were subjected to asymmetric transferhydrogenation in an azeotropic mixture of formic acid/triethylamine. Among them, the Rh-catalyzed transferhydrogenation of N-sulfonyl ketimine afforded the corresponding 1-arylalkylamines in excellent yield and with high enantioselectivity.