作者:Philip J. Hogan、Brian G. Cox
DOI:10.1021/op9000862
日期:2009.9.18
acidic conditions for the preparation of arylsulfonyl chlorides from diazonium salts in the presence of copper salts, preferably CuCl, together with thionyl chloride as the sulfur dioxide source, has considerable advantages over recommended literature procedures, whereby reactions are carried out in acetic acid with minimisation of water content of the solvent. The method has been shown to be successful
与推荐的文献方法相比,使用酸性水溶液在铜盐,优选CuCl和亚硫酰氯作为二氧化硫源的情况下,从重氮盐制备芳基磺酰氯具有显着的优势,优于推荐的文献方法,在乙酸中进行反应酸,使溶剂中的水含量降至最低。已经证明该方法对于多种电子不足和电子中性的芳基底物是成功的。磺酰氯在水中的低溶解度可保护其免受水解,从而使其以良好的收率(> 70%)和高强度(> 98%w / w)从反应混合物中直接沉淀出来。水性工艺更安全,更耐用,可以轻松扩大规模,并具有明显的环境效益。