Iodine-Mediated Multicomponent Cascade Cyclization and Sulfenylation/Selenation: Synthesis of Imidazo[2,1- a]isoquinoline Derivatives

Org Lett. 2022 Jun 24;24(24):4449-4453. doi: 10.1021/acs.orglett.2c01681. Epub 2022 Jun 13.

Abstract

A novel multicomponent cascade cyclization and sulfenylation/selenation using aryl methyl ketones, isoquinolin-1-amine, and sodium arylsulfinates/1,2-diphenyldiselane to synthesize imidazo[2,1-a]isoquinoline derivatives in one-pot via the construction of two C-N bonds and one C-S/C-Se bond has been reported. This multicomponent reaction realizes simultaneous C(sp3)-H amination and sulfenylation/selenation, avoiding complicated prior substrate preparation. This process has simple operating conditions and good substrate compatibility.