Abstract
The interaction of 1-bromo- and 1,1-dibromocyclopropanes with an equimolar quantity of CuSO4 in a DMSO–water mixture (molar ratio halocyclopropane:CuSO4·5H2O:DMSO:H2O = 1:1:10–12:14–16) proceeds via cleavage of the three-membered ring to selectively give the most thermodynamically stable isomers of the corresponding 3-trimethylsilyl-substituted allylic or 2-bromoallylic alcohols.
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