Abstract
Conjugate additions of lower order and higher order cyano cuprates containing the cis-2-tri- n-butylstannylvinyl group to cycloalkenones have been studied. The higher order cuprates were more reactive towards hindered enones such as 4,4- dimethylcyclohexenone and 2,4,4-trimethylcyclohexenone, and produced higher yields with the base-sensitive acetonide of cis-4,5-dihydroxycyclohexenone.
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