Three-Component Friedel-Crafts Reaction of Indoles, Glyoxylate, and Amine under Solvent-Free and Catalyst-Free Conditions - Synthesis of (3-Indolyl)glycine Derivatives
Solvent-free and catalyst-free three-component reactions of indoles, amines, and ethyl glyoxylate gave alkylation products in good to high yields (61-93%), providing a convenient synthesis of (3-indolyl)glycine derivatives.