SYNTHESIS OF NOVEL 4,4-DIALKYL- AND 4,4-DIARYLINDENO[1,2-<i>b</i>]THIOPHENES AND THEIR 2-BROMO DERIVATIVES

Abstract

A series of new 4,4-dialkyl- and 4,4-diaryl-4H-indeno[1,2-b]thiophenes and their 2-bromo derivatives were synthesized and characterized. An economical one-pot method for the preparation of the key starting material – 2-(2-thienyl)benzoic acid and improved procedures for the synthesis of indeno[1,2-b]thiophen-4-one and 4,4-dialkyl-4H-indeno[1,2-b]thiophenes have been developed. The described methods were shown to be efficient for the preparation of the title compounds on a multigram scale.

How to Cite
Bucevicius, J.; Adomenasp, P.; Tumkevicius, S. Chem. Heterocycl. Compd. 2015, 50, 1413. [Khim. Geterotsikl. Soedin. 2014, 1537.]

For this article in the English edition see DOI 10.1007/s10593-014-1605-1