Electro-initiated oxygenation of alkenylsilanes in the presence of thiophenol.
作者:Shogo Nakatani、Jun-ichi Yoshida、Sachihiko Isoe
DOI:10.1016/s0040-4020(01)86301-8
日期:1993.3
the reaction. Since various types of alkenylsilanes are prepared by the alkylation of 1-bromo-1-(trimethylsilyl)ethene, 1-bromo-1-(trimethylsilyl)ethene can be utilized as a synthon of phenylthioacetyl anion. The oxygenation of 1-phenylthio-1-(trimethylsilyl)alkenes in the presence of thiophenol gave α-phenylthio thiolesters indicating that the carbon-silicon bond was cleaved exclusively without affecting
链烯基硅烷在硫酚的存在下通过分子氧的鼓泡进行电解,得到相应的α-苯硫基羰基化合物,但消耗了催化量的电。提出了一种电引发的自由基链机理。该反应也可以在没有电化学引发的情况下进行,但是完成反应需要更长的反应时间。由于通过1-溴-1-(三甲基甲硅烷基)乙烯的烷基化制备了各种类型的烯基硅烷,因此1-溴-1-(三甲基甲硅烷基)乙烯可以用作苯硫基乙酰基阴离子的合成子。在苯硫酚的存在下1-苯硫基-1-(三甲基甲硅烷基)烯烃的氧合反应生成α-苯硫基硫代酯,表明碳-硅键仅被裂解而不影响碳-硫键。