in one pot: A general synthetic platform allows the interconversion of alcohols and carbonyl compounds in a predictable and controlled fashion in one pot. Under the action of a Ni catalyst, PhCl, CsF, and arylboronates, several multistep alcohol–carbonylinterconversions have been achieved with good overall efficiency (see scheme). A one‐pot nickel‐catalyzed synthesis of flumecinol (a hepatic microsomal
[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.
A Nickel Catalyst for the Addition of Organoboronate Esters to Ketones and Aldehydes
作者:Jean Bouffard、Kenichiro Itami
DOI:10.1021/ol9017613
日期:2009.10.1
Ni(cod)2/IPr catalyst promotes the intermolecular 1,2-addition of arylboronate esters to unactivated aldehydes and ketones. Diaryl, alkyl aryl, and dialkyl ketones show good reactivity under mild reaction conditions (≤80 °C, nonpolar solvents, no strong base or acid additives). A dramatic ligand effect favors either carbonyl addition (IPr) or C−OR cross-coupling (PCy3) with aryl ether substrates. A Ni(0)/Ni(II)
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:
Ligand‐Free Nickel‐Catalyzed Carbonyl Addition with Organoborons
作者:Sha‐Sha Wu、Xiaodong Ye、Zi‐Chao Wang、Shi‐Liang Shi
DOI:10.1002/cctc.202400633
日期:2024.9.23
In this report, we describe a practical, ligand-free, nickel-catalyzed carbonyl addition reaction using organoboron reagents that enables an efficient synthesis of both tertiary and secondary alcohols across a broad scope.