The chemistry of cyclopropanols has been thoroughly studied,'and useful applications of their cleavage by electrophiles have been However optically active cyclopropanols and derivatives are rare. 3 They have been generally obtained by chemical transformation of optically active compounds? Recently, Reissig reported the enantioselective preparation of (si1oxy) cyclopropanes (ee< 37%) by a copper-catalyzed cyclopropanation of silyl enol ...