Novel Brønsted Acid Catalyzed Three-Component Alkylations of Indoles with N-Phenylselenophthalimide and Styrenes
摘要:
Novel and efficient Bronsted acid (p-TsOH) catalyzed inter- and intramolecular Friedel-Crafts alkylations have been developed to synthesize selenated three-component coupling and selenation-cyclization indole derivatives. Chemical removal of the phenylseleno moiety was investigated, and the reaction mechanisms were discussed.
Blue LED light‐promoted CuCl<sub>2</sub>‐catalyzed three component reaction of styrenes, indoles, and diselenides
作者:Xianjie Yin、Helin Wang、Lei Shen、Qingle Zeng
DOI:10.1002/aoc.7231
日期:2023.10
A three-component reaction of olefins, indoles, and diaryl diselenides catalyzed by copper chloride under irradiation of blue LED light is disclosed. Various diaryl diselenides including diheteroaryl diselenides are suitable for this bifunctionalization of olefins. This protocol provides 26 examples of β-(hetero)arylselenyl indoles in 60%–87% yields. The proposed mechanism involves activation of diaryl
Novel and efficient Bronsted acid (p-TsOH) catalyzed inter- and intramolecular Friedel-Crafts alkylations have been developed to synthesize selenated three-component coupling and selenation-cyclization indole derivatives. Chemical removal of the phenylseleno moiety was investigated, and the reaction mechanisms were discussed.