Lead-Promoted Allylation of Carbonyl Compounds with Allyl Bromide

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Abstract
A lead-promoted allylation of carbonyl compounds with allyl bromide in a Pb/Bu4NBr/Me3SiCl/DMF system has been performed in good yields with high chemoselectivities: RCHO > R1R2CO > R1CH(OH)CO2R2>> R1CO2R2, lactone, (RCO)2O, and RCOCl.