Chiral Amino Ether-Controlled Catalytic Enantioselective Arylthiol Conjugate Additions to α,β-Unsaturated Esters and Ketones: Scope, Structural Requirements, and Mechanistic Implications
作者:Katsumi Nishimura、Kiyoshi Tomioka
DOI:10.1021/jo015879v
日期:2002.1.1
Asymmetric conjugate addition reaction of 2-trimethylsilylbenzenethiol with enoates and enones is catalyzed by a chiral amino ether-lithium thiolate complex and affords adducts with high enantioselectivity. Both the s-cis conformation and a steric wall at one side of the carbonyl group are structural requirements in substrates yielding adducts with high enantioselectivity. Reactions with tert-butyl
[EN] DEHYDROGENATION REACTION<br/>[FR] RÉACTION DE DÉSHYDROGÉNATION
申请人:FIRMENICH & CIE
公开号:WO2018001963A1
公开(公告)日:2018-01-04
The present invention relates to the field of organic synthesis and more specifically it concerns a process for the dehydrogenation of compound of formula (I) catalyzed by palladium (Pd0) in elemental metallic form.
本发明涉及有机合成领域,更具体地涉及一种由钯(Pd0)催化的化合物(I)的脱氢过程。
[EN] PROCESS FOR THE ISOMERISATION OF AN EXO DOUBLE BOND<br/>[FR] PROCÉDÉ POUR L'ISOMÉRISATION D'UNE LIAISON DOUBLE EXO
申请人:FIRMENICH & CIE
公开号:WO2014122263A1
公开(公告)日:2014-08-14
The present invention concerns a process for the isomerisation of an exo double bond toward an endo double bond being performed in the presence of a catalyst system comprising palladium (Pd) or platinium (Pt) and molecular hydrogen or a hydrogen source.
PROCESS FOR THE ISOMERISATION OF AN EXO DOUBLE BOND
申请人:FIRMENICH SA
公开号:US20160060200A1
公开(公告)日:2016-03-03
The present invention concerns a process for the isomerisation of an exo double bond toward an endo double bond being performed in the presence of a catalyst system comprising palladium (Pd) or platinum (Pt) and molecular hydrogen or a hydrogen source.
The present invention relates to the field of organic synthesis and more specifically it concerns a process for the dehydrogenation of compound of formula (I) catalyzed by palladium (Pd0) in elemental metallic form.