Enantioselective γ-C(sp<sup>3</sup>)–H Activation of Alkyl Amines via Pd(II)/Pd(0) Catalysis
作者:Qian Shao、Qing-Feng Wu、Jian He、Jin-Quan Yu
DOI:10.1021/jacs.8b01094
日期:2018.4.25
Pd(II)-catalyzed enantioselective γ-C(sp3)-H cross-coupling of alkyl amines via desymmetrization and kinetic resolution has been realized for the first time using chiral acetyl-protected aminomethyl oxazoline ligands (APAO). A diverse range of aryl- and vinyl-boron reagents can be used as coupling partners. The chiral γ-arylated alkylamine products are further transformed into chiral 2-substituted 1,2,3,4-
Synthesis of novel chiral oxazoline-Schiff base ligands for the catalytic asymmetric chlorination of β-keto esters
作者:Ming-Hui Qi、Fei-Jun Wang、Min Shi
DOI:10.1016/j.tetasy.2010.02.003
日期:2010.2
A series of novel monooxazoline-Schiff baseligands 1 has been successfully synthesized. The Cu(I)–1a complex showed excellent catalytic activities with up to 83% ee for the asymmetric α-chlorination of β-ketoesters.