Dinuclear zinc catalyzed asymmetric Friedel–Crafts amidoalkylation of indoles with aryl aldimines
作者:Bei-Lei Wang、Nai-Kai Li、Jin-Xin Zhang、Guo-Gui Liu、Teng Liu、Qi Shen、Xing-Wang Wang
DOI:10.1039/c0ob01200a
日期:——
The asymmetric Friedel–Crafts amidoalkylation of indoles with aryl aldimines could be efficiently catalyzed by Trost's bis-ProPhenol dinuclear zinc complexes to attain 3-indolyl methanamine derivatives in good to excellent yields (85–98%) with moderate to high enantiomeric ratios (from 70 : 30 up to 95 : 5 er). Remarkably, this approach provides efficient access to enantiomerically enriched 3-indolyl
Trost的双-Pro-Phenol双核锌络合物可以有效地催化吲哚与芳基亚胺的不对称Friedel-Crafts酰胺烷基化反应,从而以中等至高对映体比率(70以上)获得3-吲哚基甲胺衍生物,产率高至优异(85-98%)。 :30到95:5 er)。值得注意的是,这种方法可以有效地获得对映异构体富集的3-吲哚基甲烷胺,从而避免了不良的双(三)和三(吲哚基)甲烷(BIM和TIM)副产物的形成。