Abstract
Here we report a stereospecific Brook rearrangement/trapping sequence, initiated by the formation of a zinc alkoxide from an enantioenriched (hydroxyallyl)silane. The chiral carbanion resulting from the Brook rearrangement is trapped intermolecularly by carbonyl electrophiles with complete transfer of chirality. A concerted mechanism is proposed to rationalize the stereospecificity observed in the reaction sequence.
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