Abstract
A method that accomplishes the asymmetric conjugate addition of both alkyl and aryl zinc nucleophiles on acyclic systems is reported. The authors stress that commercial-grade reagents and catalysts can be used without special precautions. The enantioenriched β-silylketones 2 were shown to be useful synthetic precursors. Of particular interest is the stereoselective preparation of E-allylsilanes 5 and 6 via organometallic cross-couplings of enol triflate 4.
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