Metal-Free Oxidative Esterification of Ketones and Potassium Xanthates: Selective Synthesis of α-Ketoesters and Esters
2020
A novel and efficient oxidative esterification
for the selective
synthesis of α-ketoesters and esters has been developed under
metal-free conditions. In the protocol, various α-ketoesters
and esters are available in high yields from commercially available
ketones and potassium xanthates. Mechanistic studies have proven that
potassium xanthate not only promotes oxidative esterification but
also provides an alkoxy moiety for the reaction, which involves the
cleavage and reconstruction of C–O bonds.
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