A NEW ROUTE FOR THE SYNTHESIS OF ISOMERIC BENZO[<i>b</i>]FUROINDOLES

Abstract

A new synthesis of 1H-benzo[b]furo[3,2-f]- and 1H-benzo[b]furo[2,3-e]indoles was described. The corresponding ring-fused isatins, synthesized by the Sandmeyer reaction, were utilized as initial compounds. The reduction of the last to the unsubstituted benzo[b]furoindoles depends both on the nature of the substituent, and on the reaction conditions.

Authors: T. O. Dzhashi, T. E. Khoshtariya, L. N. Kurkovskaya, N. T. Mirziashvili, and M. I. Sikharulidze.

English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (10), pp 1237-1241

http://link.springer.com/article/10.1007/BF02323385