Carboxylic Acid Catalyzed Three-Component Aza-Friedel−Crafts Reactions in Water for the Synthesis of 3-Substituted Indoles
journal contributionposted on 12.10.2006, 00:00 authored by Seiji Shirakawa, Shū Kobayashi
The carboxylic acid catalyzed three-component aza-Friedel−Crafts reactions of aldehydes, primary amines, and indoles in water have been developed. The aza-Friedel−Crafts products could be easily transformed to various 3-substituted indoles including biologically active compounds. This system offers a novel efficient method for the synthesis of 3-substituted indoles.