The Copper‐Catalyzed C‐3‐Formylation of Indole CH Bonds using Tertiary Amines and Molecular Oxygen
A copper‐catalyzed formylation reaction has been developed by employing oxygen (O2) as the clean oxidant. The CH bonds of indoles were C‐3‐formylated by tetramethylethylenediamine (TMEDA) and water (H2O; in situ formed and external added water) as the carbonyl source in moderate to good yields with good functional group tolerance. Thus, it represents a facile procedure leading to 3‐formylindoles.
Document Type: Communications
Affiliations: 1: College of Chemistry & Materials Science, Wenzhou University, Wenzhou 325000, People's Republic of China 2: School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, People's Republic of China, Fax: (+86)-577-5699-8939
Publication date: 2012-09-17