Virtually Complete <i>E</i>-Selective α,β-Unsaturated Ester Synthesis by Hg(OTf)<sub>2</sub>-Catalyzed Hydration of <i>sec</i>-Ethoxyalkynyl Acetate
作者:Mugio Nishizawa、Hiroko Hirakawa、Yuki Nakagawa、Hirofumi Yamamoto、Kosuke Namba、Hiroshi Imagawa
DOI:10.1021/ol702548r
日期:2007.12.1
The reaction of alkyl-substituted sec-ethoxyalkynyl acetates with water catalyzed by Hg(OTf)(2) afforded alpha,beta-unsaturated esters in excellent yield with high catalytic turnover up to 1000 times under very mild reaction conditions with virtually complete E-selectivity, superior even to that of the HWE reaction.