First Examples of Oxidizing Aldehydes to Carboxylic Acids in the Presence of a Tertiary Disulfide Functional Group: Synthesis of Novel Diacid-disulfides
作者:Xinqin Fang、Upul K. Bandarage、Tiansheng Wang、Joseph D. Schroeder、David S. Garvey
DOI:10.1055/s-2003-37518
日期:——
The disulfide functionality exists in numerous organic compounds of interest in both chemistry and biology. In view of the fact that the disulfide function is highly susceptible to further oxidation by a broad range of agents, conducting a chemoselective oxidation without further oxidizing the disulfide group poses a synthetic challenge. Disclosed herein are the first examples of such an oxidation in which a series of aldehyde disulfides (1a-e) were converted to the corresponding symmetrical carboxylic acid disulfides (2a-e), utilizing sodium chlorite as the oxidant, and dimethyl sulfoxide as both a reaction solvent and an efficient hypochlorous acid scavenger.
二硫官能团存在于化学和生物学领域中许多令人感兴趣的有机化合物中。鉴于二硫功能极易被多种介质进一步氧化,在不进一步氧化二硫基团的情况下进行化学选择性氧化是一项合成挑战。本文公开了此类氧化的首个实例,利用亚氯酸钠作为氧化剂,二甲亚砜作为反应溶剂和有效的次氯酸清除剂,将一系列醛二硫化物(1a-e)转化为相应的对称羧酸二硫化物(2a-e)。