Direct conversion of carboxylic acids to free thiols <i>via</i> radical relay acridine photocatalysis enabled by N–O bond cleavage
作者:Dmitry L. Lipilin、Mikhail O. Zubkov、Mikhail D. Kosobokov、Alexander D. Dilman
DOI:10.1039/d3sc05513b
日期:——
basic chemical compounds with diverse utility and widespread reactivity. However, the direct conversion of unprotected acids to thiols is hampered due to a fundamental problem – free thiols are incompatible with the alkyl radicals formed on decarboxylation of carboxylic acids. Herein, we describe a concept for the direct photocatalytic thiolation of unprotected acids allowing unprotected thiols and their
羧酸和硫醇是具有多种用途和广泛反应性的基本化合物。然而,由于一个基本问题,未受保护的酸直接转化为硫醇受到阻碍——游离硫醇与羧酸脱羧形成的烷基不相容。在此,我们描述了未受保护的酸的直接光催化硫醇化的概念,从而获得未受保护的硫醇及其衍生物。该方法基于应用具有 N-O 键的硫代碳酸酯试剂。该试剂既可以快速捕获烷基自由基,又可以方便地再生吖啶型光催化剂。