A manganese(VII)‐mediated regio‐ and diastereoselective acyloxyarylation of chalcones is unveiled. Heating a solution of a chalcone and an arylboronic acid in an aliphatic carboxylic acid at 80 °C for 1 h afforded the corresponding 1‐acyloxy‐3‐oxo‐1,2,3‐triarylpropanes in high yields. The β‐acyloxy‐α‐arylation/elimination sequence can be regarded as an indirect α‐arylation of chalcones.

中文翻译：

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区域和非对映选择性的KMnO4 / RCO2H介导的al的酰氧基化反应– al的间接α-芳基化反应

揭示了锰（VII）介导的查尔酮的区域和非对映选择性酰氧基化反应。将查尔酮和芳基硼酸在脂肪族羧酸中的溶液在80°C下加热1小时，可以高收率得到相应的1-酰氧基-3-氧代1,2,3-三芳基丙烷。β-酰氧基-α芳基化/消除序列可视为查耳酮的间接α芳基化。