Au-Catalyzed tandem intermolecular hydroalkoxylation/Claisen rearrangement between allylic alcohols and chloroalkynes
作者:Congrong Liu、Jin Xu、Lianghui Ding、Haiyun Zhang、Yunbo Xue、Fulai Yang
DOI:10.1039/c9ob00151d
日期:——
An efficient protocol for the synthesis of γ,δ-unsaturated α-chloroketones has been developed via Au-catalyzed tandem intermolecular hydroalkoxylation/Claisen rearrangement. In the presence of 1 mol% JohnPhosAuCl and 1 mol% NaBArF, a broad range of allylic alcohols smoothly underwent the tandem intermolecular hydroalkoxylation/Claisen rearrangement with aromatic, vinylic or aliphatic chloroalkynes
Sequential Free Radical Reactions with Xanthates: Cyclopentane Ring Annulation
作者:V. Maslak、ž. Čeković、R. N. Saičić
DOI:10.1055/s-1998-1946
日期:1998.12
In the presence of electron-rich alkenes, electro- and ambiphilic homoallylic radicals, generated by homolytic decomposition of the corresponding xanthates, undergo annulation with inverse electron-demand, and afford cyclopentane derivatives in moderate to good yields.