Triarylsulfonium, alkyl- and fluoroalkyl(diaryl)sulfonium, and aryl(dialkyl)sulfonium triflates are successfully used as a new family of cross-coupling participants in the Sonogashira reaction as aryldiazonium, diaryliodonium, and tetraphenylphosphonium salts. It was found that terminal alkynes reacted mildly with triarylsulfonium or (2,2,2-trifluoroethyl)diphenylsulfonium triflate at room temperature under Pd- and Cu-cocatalysis to give the corresponding arylalkynes in up to >99% yield. This protocol represents the first use of arylsulfonium salts as cross-coupling partners in the Pd/Cu-catalyzed Sonogashira reaction.

中文翻译：

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使用芳基ulf盐作为交叉偶联伙伴的Sonogashira反应

三芳基ulf，烷基和氟烷基（二芳基）ulf和芳基（二烷基）ulf三氟甲磺酸盐已成功用作Sonogashira反应中的交叉偶联新家族，如芳基重氮盐，二芳基碘鎓盐和四苯基phosph盐。发现末端炔烃在室温下在Pd-和Cu-共催化下与三芳基（或三氟甲磺酸（2,2,2-三氟乙基）二苯基mild轻度反应，以高达> 99％的产率得到相应的芳基炔。该方案代表在Pd / Cu催化的Sonogashira反应中首次使用芳基ulf盐作为交叉偶联伴侣。