chiral ligand based on an ethylenediamine backbone was developed to achieve Pd-catalyzed enantioselective C(sp3)-H arylation of cyclopropanecarboxylic and 2-aminoisobutyric acids without using exogenous directing groups. This new chiral catalyst affords new disconnection for preparing diverse chiral carboxylic acids from simple starting materials that are complementary to the various ring forming approaches
carboxylic acids with organoborons has been realized using either mono-protected aminoacid (MPAA) ligands or mono-protected aminoethyl amine (MPAAM) ligands. A diverse range of aryl- and vinyl-boron reagents can be used as coupling partners to provide chiral carboxylic acids. This reaction provides an alternative approach to the enantioselective synthesis of cyclopropanecarboxylic acids and cyclobutanecarboxylic
[EN] PD(II)-CATALYZED ENANTIOSELECTIVE C-H ARYLATION OF FREE CARBOXYLIC ACIDS<br/>[FR] ARYLATION C-H ÉNANTIOSÉLECTIVE CATALYSÉE PAR PD(II) D'ACIDES CARBOXYLIQUES LIBRES
申请人:SCRIPPS RESEARCH INST
公开号:WO2019204477A1
公开(公告)日:2019-10-24
The invention includes procedures for stereoselective β-arylation of carboxylic acids having a β-carbon atom. For example, stereoselective arylation procedures include the following reactions: (I)
Pd(II)-catalyzed enantioselective C—H arylation of free carboxylic acids
申请人:The Scripps Research Institute
公开号:US11021427B2
公开(公告)日:2021-06-01
The invention includes procedures for stereoselective β-acylation of carboxylic acids having a β-carbon atom. For example, stereoselective acylation procedures include the following reactions: (I)
PD(II)-CATALYZED ENANTIOSELECTIVE C-H ARYLATION OF FREE CARBOXYLIC ACIDS
申请人:The Scripps Research Institute
公开号:US20210087131A1
公开(公告)日:2021-03-25
The invention includes procedures for stereoselective β-acylation of carboxylic acids having a β-carbon atom. For example, stereoselective acylation procedures include the following reactions: (I)