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In this paper, we have developed a metal-free protocol for the controllable synthesis of various 3-selenyl/sulfenyl/telluriumindoles from the regioselective intramolecular cyclization reactions of in situ generated RXCl with o-alkynyl arylamines.

Substituted benzo[cd]indoles are one of the most attractive frameworks because of their wide range of biological and optical activities. Herein, copper-catalyzed one step synthesis of biologically important polysubstituted benzo[cd]indoles starting...

A convenient and efficient method for one pot synthesis of polysubstituted (Z)-halobenzo [c,d]indoles from 8-alkynyl-1naphthylamine derivatives using CuCl 2 and CuBr 2 as the halogenated reagents has been developed. In this protocol, both (Z)-chloro and bromobenzo[c,d] indole derivatives can be obtained in moderate to good yields by copper halide-promoted stereoselective intramolecular cis-addition annulation reactions. A novel fluorescent molecule with AIE properties was constructed via Suzuki coupling reaction and its optical properties was investigated, which made them possible candidates for optoelectronic conjugated materials.

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