I<sub>2</sub>-Catalyzed Direct α-Hydroxylation of β-Dicarbonyl Compounds with Atmospheric Oxygen under Photoirradiation
作者:Chun-Bao Miao、Yan-Hong Wang、Meng-Lei Xing、Xin-Wei Lu、Xiao-Qiang Sun、Hai-Tao Yang
DOI:10.1021/jo401866p
日期:2013.11.15
An I2-catalyzed hydroxylation of β-dicarbonyl moieties using air as the oxidant under photoirradiation has been developed for the easy preparation of α-hydroxy-β-dicarbonyl compounds. The transformation was completed with only 1 mol % of I2. With α-unsubstituted malonates, the hydroxylated dimerization product was afforded as the predominant product along with a minor product, α,α-dihydroxyl malonate
为了容易地制备α-羟基-β-二羰基化合物,已经开发了在空气下使用空气作为氧化剂的I 2催化的β-二羰基部分的羟基化。仅用1mol%的I 2完成转化。对于α-未取代的丙二酸酯,将羟基化的二聚产物作为主要产物与次要产物α,α-二羟基丙二酸酯一起提供。