Cerium-catalyzed α-Oxidation of β-Dicarbonyl Compounds with Molecular Oxygen
作者:Jens Christoffers、Thomas Werner
DOI:10.1055/s-2002-19331
日期:——
β-Ketoesters and β-diketones are α-hydroxylated by molecularoxygen in the presence of 5 mol% CeCl 3 .7 H 2 O in i-PrOH as solvent. The method is limited to substrates with an α-alkyl substituent. Optimal yields are achieved with cyclic starting materials.
β-酮酯和β-二酮在作为溶剂的 i-PrOH 中,在 5 mol% CeCl 3 .7 H 2 O 存在下被分子氧α-羟基化。该方法仅限于具有 α-烷基取代基的底物。使用环状起始材料可实现最佳产率。