Rhodium(II)-Catalyzed Enantioselective C−H Functionalization of Indoles
作者:Andrew DeAngelis、Valerie W. Shurtleff、Olga Dmitrenko、Joseph M. Fox
DOI:10.1021/ja1093309
日期:2011.2.16
A catalytic, enantioselective method for the C-H functionalization of indoles by diazo compounds has been achieved. With catalytic amounts of Rh-2(S-NTTL)(4), the putative Rh-carbene intermediates from alpha-alkyl-alpha-diazoesters react with indoles at C(3) to provide alpha-alkyl-alpha-indolylacetates in high yield and enantioselectivity. From DFT calculations, a mechanism is proposed that involves a Rh-ylide intermediate with oxocarbenium character.
DeAngelis, Andrew; Dmitrenko, Olga; Yap, Glenn P. A., Journal of the American Chemical Society, 2009, vol. 131, p. 7230 - 7231
作者:DeAngelis, Andrew、Dmitrenko, Olga、Yap, Glenn P. A.、Fox, Joseph M.