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-
使用手性乙酰基保护的氨基甲基恶唑啉配体 (APAO) 首次实现了 Pd(II) 催化的烷基胺通过去对称化和动力学拆分的对映选择性 γ-C(sp3)-H 交叉偶联。多种芳基和乙烯基硼试剂可用作偶联伙伴。手性γ-芳基化烷基胺产物进一步转化为手性2-取代的1,2,3,4-四氢喹啉和螺-吡咯烷,作为天然产物和生物活性分子中的重要结构基序。