One-pot access to benzosulfolenes (1,3-dihydrobenzo[c]thiophene S,S-dioxides)via allenyl furfuryl (2-furylmethyl) sulfone intramolecular cycloaddition strategy
Abstract
Benzosulfolene and its derivatives are ready obtained by the intramolecular cycloaddition of allenyl furfuryl sulfone in the presence of base.