Fluorinated N-[2-(haloalkyl)phenyl]imidoyl chloride, a key intermediate for the synthesis of 2-fluoroalkyl substituted indole derivatives via Grignard cyclization process
N-[2-(haloalkyl)phenyl]imidoylchloride, which was readily available from the corresponding anilines by using Uneyama's one-pot synthesis of fluorinated imidoylchloride, was found to be a key intermediate for the facile synthesis of 2-fluoroalkyl substituted indole derivatives via the Grignard cyclization process. The bromination of 3-methyl group of 3-methyl-2-trifluoromethyl indole with NBS/CCl4 led
Grignard Cyclization Reaction of Fluorinated <i>N</i>-Arylimidoyl Chlorides: A Novel and Facile Access to 2-Fluoroalkyl Indoles
作者:Jian Hao、Fenglian Ge、Zengxue Wang、Wen Wan
DOI:10.1055/s-2007-967950
日期:2007.2
2-Fluoroalkyl-substituted indole derivatives were simply prepared via the Grignard cyclization reaction (GCR) of corresponding fluorinated N-aryl imidoyl chlorides in good yields. This approach provides a novel and facile access to the biologically important 2-fluoroalkylindole derivatives.