Copper-Catalyzed Synthesis of Esters from Ketones. Alkyl Group as a Leaving Group.

[摘要]：The conversion of ketones to esters has been achieved through the use of Cu catalyst and tetrabutylammonium nitrite. This reaction involves the activation of the less activated C-C bond, and the alkyl group is removed as a leaving group. Various iso-Pr ketones are found to be good substrates for this reaction. E.g., in presence of CuI and 1,10-phenanthroline, reaction of tetrabutylammonium nitrite and 4-PhC6H4COCHMe2 gave 81% 4-PhC6H4CO2Bu.

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