Abstract
Differently substituted 4-(1,3-dithiolan-2-ylidene)but-1-ynes were conveniently converted into the corresponding thiophenes and dihydrothiophenes in good to high yields under mild conditions. 1,3-Dithiolan-2-ylidene acted as a masked thiolate anion and underwent tandem fragmentation and 5-exo-dig annulation with an alkyne moiety to form the five-membered sulfur heterocycles.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
