Catalytic Enantioselective Vinylogous Allylic Alkylation of Coumarins.
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DOI: 10.1021/acs.orglett.7b02421
Abstract: An unprecedented, organocatalytic enantioselective vinylogous γ-allylic alkylation of 4-methylcoumarins has been developed. Using allylic carbonates as the allyl source, this reaction is catalyzed by Lewis basic dimeric Cinchona alkaloid (QD)2PHAL and proceeds exclusively in a… read more here.
Keywords: catalytic enantioselective; vinylogous allylic; alkylation coumarins; allylic alkylation ... See more keywords