Ring-opening reactions of donor–acceptor cyclopropanes with cyclic ketals and thiol ketals

Abstract

1,3-Cyclohexandione derived cyclic ketals and thiol ketals were used as O- and S-nucleophiles, respectively, for the ring opening of donor–acceptor cyclopropanes catalyzed by Cu(OTf)₂ and a series of functionalized alkylene glycol diethers and dithiol diethers were obtained in good to high yields under mild conditions.