[EN] ACTIVATION OF CARBONYL &bgr;-CARBONS FOR CHEMICAL TRANSFORMATIONS<br/>[FR] ACTIVATION DE &Bgr;-CARBONES DE CARBONYLE POUR DES TRANSFORMATIONS CHIMIQUES
申请人:UNIV NANYANG TECH
公开号:WO2014142755A1
公开(公告)日:2014-09-18
The present invention relates to a method for synthesizing a compound of Formula (I) as defined herein, comprising: (i) activating a compound of Formula (II) as defined herein, by reacting said compound of Formula (II) with a compound of Formula (III) as defined herein, in the presence of a base, to obtain a compound of Formula (IV) as defined herein; and (ii) reacting the compound of Formula (IV) with an electrophile to obtain the compound of Formula (I). The present invention further relates to the organocatalysts used in the described methods and their respective uses.
Activation of carbonyl beta-carbons for chemical transformations
申请人:Nanyang Technological University
公开号:US11306097B2
公开(公告)日:2022-04-19
The present invention relates to a method for synthesizing a compound of Formula (I)
as defined herein, comprising: (i) activating a compound of Formula (II)
as defined herein, by reacting said compound of Formula (II) with a compound of Formula (III)
as defined herein, in the presence of a base, to obtain a compound of Formula (IV)
as defined herein; and (ii) reacting the compound of Formula (IV) with an electrophile to obtain the compound of Formula (I). The present invention further relates to the organocatalysts used in the described methods and their respective uses.
ACTIVATION OF CARBONYL BETA-CARBONS FOR CHEMICAL TRANSFORMATIONS
申请人:Nanyang Technological University
公开号:US20160039827A1
公开(公告)日:2016-02-11
The present invention relates to a method for synthesizing a compound of Formula (I) as defined herein, comprising: (i) activating a compound of Formula (II) as defined herein, by reacting said compound of Formula (II) with a compound of Formula (III) as defined herein, in the presence of a base, to obtain a compound of Formula (IV) as defined herein; and (ii) reacting the compound of Formula (IV) with an electrophile to obtain the compound of Formula (I). The present invention further relates to the organocatalysts used in the described methods and their respective uses.
β-Carbon activation of saturated carboxylic esters through N-heterocyclic carbene organocatalysis
作者:Zhenqian Fu、Jianfeng Xu、Tingshun Zhu、Wendy Wen Yi Leong、Yonggui Robin Chi
DOI:10.1038/nchem.1710
日期:2013.10
The activation of the α-carbons of carboxylic esters and related carbonyl compounds to generate enolate equivalents as nucleophiles is one of the most powerful strategies in organic synthesis. We reasoned that the horizons of chemical synthesis could be greatly expanded if the typically inert β-carbons of saturated esters could be used as nucleophiles. However, despite the rather significant fundamental