Sustainable Mizoroki–Heck reaction in water: remarkably high activity of Pd(OAc)2 immobilized on reversed phase silica gel with the aid of an ionic liquid
作者:Hisahiro Hagiwara、Yoshitaka Sugawara、Takashi Hoshi、Toshio Suzuki
DOI:10.1039/b502528a
日期:——
Palladium acetate immobilized on reversed phase amorphous silica gel with the aid of an ionic liquid, [bmim]PF6, was highly efficient in the promotion of the MizorokiâHeck reaction in pure water without a ligand up to the sixth re-use, in 95% average yield with TON and TOF 1,600,000 and 71,000 (hâ1), respectively.
用离子液体 [bmim]PF6 辅助的反相非晶硅胶负载的乙酸钯在纯水中催化 Mizoroki–Heck 反应时,表现出极高的效率,无需配体,最多可重复使用六次,平均产率达 95%,总活性(TON)和单位时间产率(TOF)分别为 1,600,000 和 71,000 (h⁻¹)。