Regio- and diastereoselective synthesis of indeno-quinoxaline-thiazolidine-2-thione and bis-indeno-quinoxaline-dicarbamodithioate derivatives, along with an investigation of their photoluminescent properties and potential applications

Abstract

This study presents a regio- and diastereoselective method for synthesizing indeno-quinoxaline-thiazolidine-2-thione and bis-indeno-quinoxaline-dicarbamodithioate hybrids. The target compounds are synthesized via a one-pot reaction of carbon disulfide, various amines, and 2-(11H-indeno [1,2-b]quinoxalin-11-ylidene)-1-phenylethan-1-one derivatives. The reaction proceeds under mild conditions, affording the products in high yields with high selectivity. The protocol is operationally simple and has been demonstrated on a gram scale, indicating its suitability for large-scale synthesis and compound library generation. Additionally, the synthesized hybrids exhibit photoluminescent properties, which may be of interest for further interdisciplinary investigation.