环丙基[ b ]萘(3a)的三羰基铬配合物在Bu(C)在C(1)处去质子化。将所得阴离子用Mel淬灭,得到立体异构甲基衍生物6a和6b的1:1混合物。双甲硅烷基化的配合物3b的彼得森烯化以低收率提供了配合物的亚烷基环戊烯5。环丙烷[ b ]蒽(10)的三羰基铬配合物可通过9的双氢脱甲硅烷基化获得。还报道了它的X射线结构。尝试合成苯并环丙烯的三羰基铬配合物(11a)失败。
环丙基[ b ]萘(3a)的三羰基铬配合物在Bu(C)在C(1)处去质子化。将所得阴离子用Mel淬灭,得到立体异构甲基衍生物6a和6b的1:1混合物。双甲硅烷基化的配合物3b的彼得森烯化以低收率提供了配合物的亚烷基环戊烯5。环丙烷[ b ]蒽(10)的三羰基铬配合物可通过9的双氢脱甲硅烷基化获得。还报道了它的X射线结构。尝试合成苯并环丙烯的三羰基铬配合物(11a)失败。
Au-Catalyzed Oxidative Arylation: Chelation-Induced Turnover of <i>ortho</i>-Substituted Arylsilanes
作者:Matthew P. Robinson、Guy C. Lloyd-Jones
DOI:10.1021/acscatal.8b02302
日期:2018.8.3
ortho-Substituted aryl silanes have previously been found to undergo much slower Au-catalyzed intermolecular arylation than their m,p-substituted isomers, with many examples failing to undergo turnover at all. A method to indirectly quantify the rates of C–Si auration of o-substituted aryl silanes, under conditions of turnover, has been developed. All examples are found to undergo very efficient C–Si