A new route to 2,3-dihydro-1,4-benzoxathiine and 2,3-dihydro-1,4-benzodithiine
Abstract
The ethylene monothioacetals and dithioacetals of alkylcyclohexanones react with copper(II) bromide to give 2,3-dihydro-1,4-benzoxathiine and 2,3-dihydro-1,4-benzodithiine derivatives, respectively.