BERGMAN J.; BAECKVALL J. E., TETRAHEDRON <TETR-AB>, 1975, 31, NO 17, 2063-2073
作者:BERGMAN J.、 BAECKVALL J. E.
DOI:——
日期:——
Tin (IV) chloride catalysed synthesis of di(indolyl)methanes during electrophilic substitution of indoles and 2-methyl indoles
作者:Nayak, Anupam、Banerji, Avijit、Banerji, Julie
DOI:10.56042/ijc.v61i7.64617
日期:——
Michael Addition of Indoles to Enones Catalyzed by a Cationic Iron Salt
作者:Takashi Nishikata、Tsukasa Inishi、Goki Hirata
DOI:10.1055/s-0040-1705997
日期:2021.3
Indoles are one of the most valuable nucleophiles in Michaeladditionscatalyzed by a proper Lewis acid. In this paper, we found that a cationic iron salt is effective to carry out the Michaeladdition of indoles. β-Mono- and disubstituted enones reacted smoothly with indoles under our conditions. The cationic iron catalyst is very active, and the maximum TON was up to 425. Moreover, cationic iron-catalyzed