for the generation of alkyl radicals from alkylsilyl peroxides (ASPs) in the absence of any transition metal or photocatalyst. This operationally simple protocol utilizes Hantzsch ester as a photoreductant to efficiently induce the OO bond cleavage of various ASPs via single-electron transfer, generating the corresponding alkyl radicals under mild conditions. The radicals generated by this method participate
我们报告了一种在没有任何过渡金属或光催化剂的情况下从烷基硅基过氧化物 (ASP) 生成烷基自由基的光化学方法。这种操作简单的方案利用 Hantzsch 酯作为光还原剂,通过单电子转移有效诱导各种 ASP 的 O O 键断裂,在温和条件下产生相应的烷基自由基。通过这种方法产生的自由基参与了与各种缺电子烯烃的 Giese 型加成。这项研究拓宽了从 ASP 生成自由基的方法,从而提高了它们在自由基化学领域的适用性和多功能性。
Hauptmann,S. et al., Journal fur praktische Chemie (Leipzig 1954), 1964, vol. 25, p. 56 - 68