Palladium-Catalyzed Asymmetric Hydroesterification of α-Aryl Acrylic Acids to Chiral Substituted Succinates
作者:Xiaolei Ji、Chaoren Shen、Xinxin Tian、Kaiwu Dong
DOI:10.1021/acs.orglett.1c03361
日期:2021.11.5
A palladium-catalyzed asymmetric hydroesterification of α-aryl acrylic acids with CO and alcohol was developed, preparing a variety of chiral α-substituted succinates in moderate yields with high ee values. The kinetic profile of the reaction progress revealed that the alkene substrate first underwent the hydroesterification followed by esterification with alcohol. The origin of the enantioselectivity
开发了钯催化的 α-芳基丙烯酸与 CO 和醇的不对称加氢酯化反应,以中等收率和高ee值制备了多种手性 α-取代琥珀酸酯。反应过程的动力学曲线表明,烯烃底物首先进行加氢酯化,然后与醇进行酯化。通过密度泛函理论计算阐明了对映选择性的起源。
Process for producing optically active carboxylic acids and chiral ligands for this purpose
申请人:Takasago International Corporation
公开号:EP0673911A1
公开(公告)日:1995-09-27
A process for the production of an optically active carboxylic acid (I), which comprises subjecting an olefinic carboxylic acid (II) to asymmetric hydrogenation using a complex as a catalyst consisting of an optically active phosphine (III) and a ruthenium compound. complex of
with ruthenium compound
According to the process of the present invention, optically active carboxylic acids can be produced with high yield.
The compounds of formula (III) are also claimed.
Sulfonate-Modified Picolinamide Diphosphine: A Ligand for Room-Temperature Palladium-Catalyzed Hydrocarboxylation in Water with High Branched Selectivity