Photo-induced intramolecular alkyl/aryl group transfer and SO2 Insertion: A new strategy for the synthesis of 3‑(alkyl/arylsulfonyl)benzothiophenes

A new and efficient strategy for the synthesis of 3‑(alkyl/arylsulfonyl)benzothiophenes and benzoselenophenes via a photo-induced tandem cyclization of 2-alkynylthioanisoles or -selenoanisoles with DABSO through intramolecular alkyl/aryl group transfer and SO2...