Ruthenium-Catalyzed Oxidative Cleavage of Alkynes to Carboxylic Acids
作者:Dan Yang、Fei Chen、Ze-Min Dong、Dan-Wei Zhang
DOI:10.1021/jo0357925
日期:2004.3.1
We describe an efficient method for the oxidative cleavage of alkynes to carboxylic acids using a combination of RuO2/Oxone/NaHCO3 in a CH3CN/H2O/EtOAc solvent system. Both internal and terminal alkynes, regardless of their electron density, can be oxidized to carboxylic acids in excellent yield (up to 99%). 1H NMR spectroscopy and ESI-MS experiments provided evidence for α-diketones and anhydrides
我们描述了在CH 3 CN / H 2 O / EtOAc溶剂系统中使用RuO 2 / Oxone / NaHCO 3的组合,将炔烃氧化裂解为羧酸的有效方法。内部炔烃和末端炔烃,无论其电子密度如何,都可以极好的收率(高达99%)被氧化为羧酸。1 H NMR光谱和ESI-MS实验提供了α-二酮和酸酐作为这些氧化反应中可能的中间体的证据。