Recent developments in synthetic methods for benzo[b]heteroles

Benzo[b]heteroles containing heteroatoms other than nitrogen and oxygen have received considerable attention for their potential applications in materials science. This poses an increasing demand for efficient, selective, and broad-scope methods for their synthesis. This review article summarizes the recent developments in synthetic methods and approaches to access representative members of the benzoheterole family.

Synthesis of 3-phosphinoylquinolines via a phosphinoylation–cyclization–aromatization process mediated by tert-butyl hydroperoxide

The first metal-free phosphinoylation–cyclization–aromatization method has been developed.