Synthesis 2005(11): 1779-1782  
DOI: 10.1055/s-2005-869897
PAPER
© Georg Thieme Verlag Stuttgart · New York

InCl3-HMTA as a Methylene Donor: One-Pot Synthesis of Diindolylmethane (DIM) and Its Derivatives

Prasun K. Pradhan, Sumit Dey, Venkatachalam Sesha Giri, Parasuraman Jaisankar*
Department of Medicinal Chemistry, Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Calcutta-700032, India
Fax: +91(33)24735197; e-Mail: jaisankar@iicb.res.in;
Further Information

Publication History

Received 11 February 2005
Publication Date:
18 May 2005 (online)

Abstract

Treatment of indoles 1a-k with hexamethylenetetramine (HMTA) (2) in presence of a catalytic amount (10 mol%) of InCl3 resulted in 3,3′-diindolylmethane (DIM) derivatives 3a-k in excellent yields.