the properties and reactivity of fluoromethylsulfonium salts resulted in the redesign of the reagents for fluoromethylene transfer chemistry. The model reaction, fluorocyclopropanation of nitrostyrene, turned out to be a suitable platform for the discovery of more streamlined fluoromethylene transfer reagents. The incorporation of halides on one aryl ring increased the reactivity, and 2,4-dimethyl substitution
accessible sodiumformate as C1-source and K2S2O8 as reagent, a set of vinylsulfone substrates could be efficiently hydrocarboxylated in aqueous medium without any additional catalyst or reagent; and the concept could be also applied for direct hydroacylations, hydroalkylations and hydrophosphorylations. The control experiments clearly indicated that the reaction proceeds via radical mechanism without
我们报告了一种可见光介导的乙烯砜衍生物自由基加氢羧化方法。使用廉价易得的甲酸钠作为C1源,K 2 S 2 O 8作为试剂,一组乙烯基砜底物可以在水介质中有效地加氢羧化,无需任何额外的催化剂或试剂;该概念也可应用于直接加氢酰化、加氢烷基化和加氢磷酸化。对照实验清楚地表明该反应通过自由基机制进行,没有生成电子供体-受体(EDA)复合物;支持K 2 S 2 O 8原位引发的工作模型形成CO 2自由基阴离子。
De Maria,P.; Fini,A., Journal of the Chemical Society. Perkin transactions II, 1973, p. 1773 - 1776