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Copper-catalyzed C–H acyloxylation of 2-phenylpyridine using oxygen as the oxidant†
Feifan Wang,Zhiyang Lin,Weisheng Yu,Qingdong Hu,Chao Shu,Wu Zhang
RSC Advances Pub Date : 05/03/2018 00:00:00 , DOI:10.1039/C8RA01974F
Abstract

An efficient copper-catalyzed direct o-acyloxylation of 2-phenylpyridine with carboxylic acids using oxygen as the oxidant has been developed. Various acids including aromatic acids, cinnamic acids and aliphatic acids are effective acyloxylation reagents and provide the desired products in moderate to excellent yields. The reaction proceeds well under an oxygen atmosphere, making this method potentially practical.

Graphical abstract: Copper-catalyzed C–H acyloxylation of 2-phenylpyridine using oxygen as the oxidant
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