作者:Frederik Sandfort、Tobias Knecht、Tobias Pinkert、Constantin G. Daniliuc、Frank Glorius
DOI:10.1021/jacs.0c01630
日期:2020.4.15
complementing established methodologies such as nucleophilic aromatic substitution or palladium-catalyzed coupling reactions. Experimental and computational studies suggest a radical chain mechanism with the key step being a homolytic aromatic substitution of the heteroaryl halide by an electrophilic thiyl radical, highlighting an underdeveloped reactivity mode of these radicals.
报告了各种药物相关的富电子杂芳烃与硫醇的位点选择性硫醇化的一般和简单策略。这种温和而可靠的光催化协议能够在(多)卤化底物的最富电子位置进行 CS 耦合,补充已建立的方法,如亲核芳香取代或钯催化的耦合反应。实验和计算研究表明了一种自由基链机制,其关键步骤是杂芳基卤化物被亲电硫基自由基的均裂芳族取代,突出了这些自由基的不发达反应模式。