Redox-Triggered Ruthenium-Catalyzed Remote C–H Acylation with Primary Alcohols
作者:Xiao Guo、Yang Wu、Gongqiang Li、Ji-Bao Xia
DOI:10.1021/acscatal.0c03343
日期:2020.11.6
related compounds. Prior examples for hydrogenative remote C(sp3)–H functionalization of olefins via a metal walking process featured external reducing agents. Here, we report a strategy for redox-triggered hydrogenative remote C(sp3)–H acylation of olefins with primary alcohols both as an acylating agent and a reductant, which is validated by the base-free 1,3-diketone synthesis. Mechanistic studies have
Photo-mediated [1, 3]-Carbonyl shift of β-Ketocarbonyls
作者:Wenzhao Zhang、Yao Li、Sanzhong Luo
DOI:10.1016/j.jphotochem.2020.112553
日期:2020.6
An organic amine mediated photolytic [1,3]-benzoyl migration of β-benzoyl carbonylcompounds was reported. This migration was achieved by Norrish-Yang cyclization and retro-aldol reaction under black light (365 nm) or visible light irradiation. This photolytic protocol provides an alternative approach to the synthesis of 1,5-dicarbonyl compounds. By chiral primary amine catalysis, a kinetic resolution