Novel One-pot Three-component Coupling Reaction with Trimethylsilylmethyl-phosphonate, Acyl Fluoride, and Aldehyde through the Horner–Wadsworth–Emmons Reaction
作者:Taiki Umezawa、Tomoya Seino、Fuyuhiko Matsuda
DOI:10.1021/ol301879a
日期:2012.8.17
A novel three-component coupling between trimethylsilylmethylphosphonate, acyl fluoride, and aldehyde has been developed. A sequential nucleophilic addition of lithio-trimethylsilylmethylphosphonate to the acyl fluoride and Horner–Wadsworth–Emmons reaction of an aldehyde with the lithio-β-ketophosphonate generated in situ by desilylation at the α-position of the α-silyl-β-ketophosphonate by fluoride
已经开发了三甲基甲硅烷基甲基膦酸酯,酰基氟和醛之间的新型三组分偶联。硫代三甲基甲硅烷基甲基膦酸酯的顺序亲核加成反应,以及醛与氟在α-甲硅烷基-β-酮膦酸酯的α-位上被甲硅烷基化而就地产生的硫代-β-酮膦酸酯与醛的霍纳-沃兹沃思-埃蒙斯反应一锅操作干净利落地进行了。通过这种一锅法,以高收率和高立体选择性获得了各种E-和Z-烯酮。