Fluoride Ion-Induced Horner–Emmons Reaction of α-Silylalkylphosphonic Derivatives with Carbonyl Compounds
作者:Takayuki Kawashima、Takafumi Ishii、Naoki Inamoto
DOI:10.1246/bcsj.60.1831
日期:1987.5
Dimethyl α-trimethylsilylbenzylphosphonate was allowed to react with carbonyl compounds in the presence of fluoride ion to give the corresponding olefins in fairly good yields. Use of CsF in tetrahydrofuran gave the best result. On the other hand, dimethyl trimethylsilylmethylphosphonate was allowed to react similarly with benzophenone to afford 1,1-diphenylethylene, dimethyl methylphosphonate, and
在氟离子存在下,使α-三甲基甲硅烷基苄基膦酸二甲酯与羰基化合物反应,以相当好的收率得到相应的烯烃。在四氢呋喃中使用 CsF 给出了最好的结果。另一方面,使三甲基甲硅烷基甲基膦酸二甲酯与二苯甲酮类似地反应,得到1,1-二苯基乙烯、甲基膦酸二甲酯和2,2-二苯基乙烯基膦酸二甲酯。通过使用 O,O-二乙基三甲基甲硅烷基甲基硫代膦酸酯获得了类似的结果。但是,三甲基甲硅烷基甲基膦酸双(二乙酰胺)的反应仅提供原脱甲硅烷化产物。