Enantioselective Synthesis of Nitroalkanes Bearing All-Carbon Quaternary Stereogenic Centers through Cu-Catalyzed Asymmetric Conjugate Additions
作者:Jing Wu、Dawn M. Mampreian、Amir H. Hoveyda
DOI:10.1021/ja050800f
日期:2005.4.1
first examples of catalytic asymmetric conjugateaddition (ACA) of alkylzinc reagents to trisubstituted nitroalkenes, leading to the formation of nitroalkanes bearing a quaternary carbon stereogeniccenter, are reported. Reactions are promoted in the presence of 4 mol % of a readily available amino acid-based phosphine and 2 mol % (CuOTf).C6H6. Cu-catalyzed reactions proceed efficiently in up to 98% ee
[EN] PHARMACEUTICAL INTERMEDIATES AND A PROCESS FOR THE PREPARATION THEREOF<br/>[FR] INTERMEDIAIRES PHARMACEUTIQUES ET PROCEDE DE PREPARATION DE CEUX-CI
申请人:EGYT GYOGYSZERVEGYESZETI GYAR
公开号:WO2006013399A1
公开(公告)日:2006-02-09
The invention relates to pure enantiomer and in certain cases new racemic-isopropanol derivatives of the general Formula (I) and a process for the preparation thereof. The partly new and partly known compounds of the general Formula (I) are useful pharmaceutical intermediates. The substituent definition of symbols R1, R2 and R3 are as stated in the patent specification.
[EN] COMPOSITIONS AND METHODS FOR PREPARING β,γ-UNSATURATED ACIDS<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR LA PRÉPARATION D'ACIDES β,γ-INSATURÉS
申请人:CALIFORNIA INST OF TECHN
公开号:WO2018209243A1
公开(公告)日:2018-11-15
The present disclosure provides methods for enantioselective synthesis of acyclic α- quaternary carboxylic acid derivatives via iridium-catalyzed allylic alkylation.
Compounds of Formula I and Formula II are useful as inhibitors of HIF prolyl hydroxylases. Compounds of Formula I and Formula II have the following structures:
where the definitions of the variables are provided herein.
Compounds of Formula I and Formula II are useful as inhibitors of HIF prolyl hydroxylases. Compounds of Formula I and Formula II have the following structures:
where the definitions of the variables are provided herein.