Facile Three-component Synthesis of imidazo[4,5-b]indoles

Saman Damavandi

Abstract

A rapid, efficient and high yielding synthetic procedure to 3,4-dihydro-2-arylimidazo[4,5- b]indole by the multicomponent reaction of aromatic aldehydes, indoline-2,3-dione and ammonium acetate catalyzed by L-proline under ultrasonic irradiation is described.