Aerobic, Cu-catalyzed desulfitative C–C bond-forming reaction of ketene dithioacetals/vinylogous thioesters and arylboronic acids
作者:Ying Dong、Mang Wang、Jun Liu、Wei Ma、Qun Liu
DOI:10.1039/c1cc11382h
日期:——
A new Cu-catalyzed thioorganicâboronic acid desulfitative CâC bond-forming reaction involving ketene dithioacetals/ vinylogous thioesters is reported to proceed without the assistance of ligating S-pendant. Vinylogous thiolesters and tetrasubstituted olefins were prepared by this reaction in which Cu catalyst plays a dual role under aerobic conditions.
Fe(<scp>ii</scp>)-Catalyzed alkenylation of benzylic C–H bonds with diazo compounds
作者:Jiang-Ling Shi、Qinyu Luo、Weizhi Yu、Bo Wang、Zhang-Jie Shi、Jianbo Wang
DOI:10.1039/c9cc01060b
日期:——
We report herein an alkenylation of benzylic C(sp3)–H bonds with diazocompounds via carbon cation intermediates with DDQ as the oxidant in the presence of a catalytic amount of Fe(II). Diphenylmethane, toluene, benzyl methyl sulfide and their derivatives could be applied as substrates to afford the tetra-substituted olefin products, which may serve as useful building blocks in organic synthesis.