Chemoselective Conversion from α-Hydroxy Acids to α-Keto Acids Enabled by Nitroxyl-Radical-Catalyzed Aerobic Oxidation
作者:Keisuke Furukawa、Haruki Inada、Masatoshi Shibuya、Yoshihiko Yamamoto
DOI:10.1021/acs.orglett.6b01964
日期:2016.9.2
The chemoselective oxidation of α-hydroxy acids to α-keto acids catalyzed by 2-azaadamantane N-oxyl (AZADO), a nitroxyl radical catalyst, is described. Although α-keto acids are labile and can easily release CO2 under oxidation conditions, the use of molecular oxygen as a cooxidant enables the desired chemoselective oxidation.
描述了由2-氮杂金刚烷N-氧基(AZADO)(一种硝基氧基自由基催化剂)催化的α-羟基酸到α-酮酸的化学选择性氧化。尽管α-酮酸不稳定并且可以在氧化条件下轻易释放CO 2,但是使用分子氧作为助氧化剂可以实现所需的化学选择性氧化。