A Facile and Selective Procedure for Oxidation of Sulfides to Sulfoxides on Silica Gel Supported Magnesium Monoperoxyphthalate (MMPP) in Dichloromethane
作者:Mohammed Hashmat Ali、William C. Stevens
DOI:10.1055/s-1997-1420
日期:1997.7
The scope of the magnesium monoperoxyphthalate (MMPP) oxidation of sulfides to sulfoxides has been extended by using hydrated silica gel as a solid support in dichloromethane media. This procedure works in the presence of a number of functional groups on the sulfides, including carbonyl and alkene groups that have been known to undergo Baeyer-Villiger oxidation and epoxidation with MMPP when using more conventional procedures. To our knowledge, this is the first example of oxidation of sulfides containing a carbonyl group with MMPP in non-aqueous media without any Baeyer-Villiger reaction. The reported procedure is easy to perform, product separation is trivial and it produces excellent yields.
水合硅胶作为固体载体在二氯甲烷介质中扩大了镁单过氧邻苯二甲酸酯(MMPP)对硫化物氧化生成亚砜的适用范围。该方法在硫化物中含有多种官能团的情况下均有效,包括已知在常规方法中会与MMPP发生拜耶尔-维利格氧化和环氧化反应的羰基和烯烃官能团。据我们所知,这是首次在非水介质中使用MMPP对含有羰基的硫化物进行氧化而不发生拜耶尔-维利格反应的例子。该方法操作简便,产物分离简单,且产率优异。