Synlett 2014; 25(12): 1759-1763
DOI: 10.1055/s-0033-1338644
letter
© Georg Thieme Verlag Stuttgart · New York

Regioselective One-Pot Synthesis of Isochromenopyrroles Containing a Disulfide Bond

Abdolali Alizadeh*
a   Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
,
Fahimeh Bayat
a   Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
,
Long-Guan Zhu
b   Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. of China   Fax: +98(21)88006544   Email: aalizadeh@modares.ac.ir   Email: abdol_alizad@yahoo.com
› Author Affiliations
Further Information

Publication History

Received: 22 March 2014

Accepted after revision: 21 April 2014

Publication Date:
28 May 2014 (online)


Abstract

Isochromenopyrroles containing a disulfide bond were prepared by reacting enamines, resulting from propylamine and β-keto esters, with aryl isothiocyanates to give rise to an intermediate which is trapped by ninhydrin. The simple procedure, metal-catalyst-free and mild reaction conditions, good to excellent yields, and no column chromatography are important features of this protocol.