Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 2, Pages 432-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja910428y
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- Grants-in-Aid for Scientific Research [21106005] Funding Source: KAKEN
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Treatment of an gamma-acyloxy-alpha,beta-unsaturated ketone with bis(iodozincio)methane leads to a novel tandem reaction consisting of three steps: ( 1) 1,4-addition of the dizinc reagent to the enone, which affords the corresponding zinc enolate of the beta-zinciomethylated ketone; (2) intramolecular nucleophilic attack by the enolate on the ester group; and (3) Grob-type fragmentation of the addduct, accompanied by elimination of the zinc alkoxide of allyl alcohol. The overall reaction gives 1,3-diketones efficiently.
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