A new and efficient strategy for the synthesis of 3-(alkyl/arylsulfonyl)benzothiophenes and benzoselenophenes through intramolecular alkyl/aryl transfer and SO2 insertion process was developed.
Recent advances in the synthesis of heterocycles containing two or more chalcogens, mainly reactions of thio- and selenoalkynes and alkenes in chalcogenocyclization reactions, have been comprehensively discussed in this review.
This comprehensive review chronologically summarizes visible-light-induced cascade reactions with literature coverage up to October 2022.
This review comprehensively summarizes the dichalcogenative functionalization of unsaturated compounds over the past decade. The scopes, limitations and detailed reaction mechanisms are also discussed.
A facile synthesis of benzothiophenes from readily available aryl sulfoxides and allenenitriles has been established through sulfonium-rearrangement triggered cyclization.