Tetrabutylammonium Iodide‐Catalyzed Radical Alkoxycarbonylation of 2‐Isocyanobiphenyls with Carbazates: Synthesis of Phenanthridine‐6‐carboxylates

Abstract

Abstract A practical and environmentally friendly strategy for generating alkoxycarbonyl radicals from readily available carbazates under metal‐free conditions has been developed. In the presence of tetrabutylammonium iodide and tert ‐butyl hydroperoxide, 2‐isocyanobiphenyls smoothly underwent radical alkoxycarbonylation with carbazates to afford phenanthridine‐6‐carboxylates. magnified image