I₂/CAN as a Mild and Efficient Reagent for Oxidative Csp³‐Csp² Cleavage of 3,3′‐Bis‐7‐azaindolylmethane: A Rapid One‐Pot Access to 3‐Formyl and 3‐Iodo‐7‐azaindoles

Abstract

The combination of I2/CAN has emerged as a mild and powerful reagent for the oxidative Csp3‐Csp2 cleavage of 3,3′‐bis‐7‐azaindolylmethane to provide a quantitative combined yield of 3‐formyl and 3‐iodo‐7‐azaindole in a one‐pot reaction at RT. A plausible mechanism and characterization, including XRD, has been described. The synthetic transformations of title compounds were explored by reduction, Click, reductive amination, and Suzuki coupling reaction.