5-chloro-10-oxa-3-thiatricyclo[5.2.1.0(1,5)] dec-8-ene 3,3-dioxide

Abstract

The title compound, C8H9ClO3S, has been synthesized from 2( 2-chloroallylsulfanylmethyl) furan by intramolecular thermal cycloaddition. The boat form of the six-membered ring is almost symmetric with respect to the epoxy bridge, and the five-membered ring containing the S atom has an envelope conformation.