An Efficient<i>α</i>-Alkylation of Aromatic Ketones with Primary Alcohols Catalyzed by [Cp∗︁IrCl<sub>2</sub>]<sub>2</sub>without Solvent
作者:Jian Li、Weixing Zhang、Feng Wang、Min Jiang、Xiaochun Dong、Weili Zhao
DOI:10.1002/cjoc.201200524
日期:2012.10
presence of catalytic amount of KOH and [Cp∗︁IrCl2]2 (Cp∗︁=pentamethylcyclopentadienyl) catalyst. The reaction is carried out in the absence of any solvent or additive, which generates only water as the byproduct in theory. It is very efficient and generally completed in 10 min in good isolated yields. The reaction is believed to undergo successive hydrogen transfer and cross aldol condensation processes
芳族酮在直接烷基化的α中的KOH催化量的存在下与伯醇的位置在110℃和混合[Cp *︁IrCl 2 ] 2(CP *︁=五甲基环戊二烯)催化剂。反应在没有任何溶剂或添加剂的情况下进行,理论上仅产生水作为副产物。它非常有效,通常可以在10分钟内以良好的分离产率完成。据信该反应经历了连续的氢转移和交叉的羟醛缩合过程。