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One-pot vinylogous aldol addition of β,γ-unsaturated esters under mild conditions
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We described a one-pot vinylogous aldol addition of methyl 3-butenoate to aromatic aldehydes in the presence of silver salts and the TMSCl-TBAF mixture. The reaction can be done simply by sequentially mixing reagents in situ, and it does not require any catalyst or dienolate ether preparations prior to the reaction.