[EN] CHIRAL DIAMINE COMPOUNDS FOR THE PREPARATION OF CHIRAL ALCOHOL AND CHIRAL AMINE<br/>[FR] COMPOSÉS DE DIAMINE CHIRALE POUR LA PRÉPARATION D'ALCOOL CHIRAL ET D'AMINE CHIRALE
申请人:UNIV DUBLIN
公开号:WO2015181182A1
公开(公告)日:2015-12-03
A process for the stereoselective preparation of a chiral alcohol or a chiral amine, the process comprising reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an inline, with a second reactant comprising a Grignard reagent, in the presence of a chiral trans-diamim of formula (1) as defined herein. Also provided is the use of the chiral trans-diamine of formula (1) in a Grignard reaction and the chiral trans-diamines per se.
Chiral diamine compounds for the preparation of chiral alcohols and chiral amines
申请人:University College Dublin
公开号:US10196338B2
公开(公告)日:2019-02-05
Processes for stereoselective preparation of a chiral alcohol or a chiral amine are described. The processes include reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant that includes a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein:
CHIRAL DIAMINE COMPOUNDS FOR THE PREPARATION OF CHIRAL ALCOHOLS AND CHIRAL AMINES
申请人:University College Dublin
公开号:US20170204036A1
公开(公告)日:2017-07-20
A process for the stereoselective preparation of a chiral alcohol or a chiral amine, the process comprising reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant comprising a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein:
Also provided is the use of the chiral trans-diamine of formula (1) in a Grignard reaction and the chiral trans-diamines per se.
Asymmetric Grignard Synthesis of Tertiary Alcohols through Rational Ligand Design
作者:Bartosz Bieszczad、Declan G. Gilheany
DOI:10.1002/anie.201610462
日期:2017.4.3
enantioselective construction of tertiaryalcoholsthrough the direct addition of organomagnesium reagents to ketones. Discovered by rational ligand design based on a mechanistic hypothesis, it has an unprecedented broad scope. It utilizes a new type of chiral tridentate diamine/phenol ligand that is easily removed from the reaction mixture. It is exemplified by application to a formal asymmetric synthesis