A metal-free visible-light-induced trifluoromethylation of Bunte salts of α-bromoketones/alkyl bromide/benzyl bromides/functionalized allyl (Baylis–Hillman) bromides has been accomplished using Langlois’ reagent in the presence of inexpensive eosin Y as a photocatalyst to form the privileged trifluoromethylthiolated synthons. The method is straightforward, operationally simple, and endowed with broad substrate scope and good functional group tolerance.

中文翻译：

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Bunte盐的可见光诱导光催化三氟甲基化：易于获得三氟甲基硫醇化合成子

在廉价的曙红 Y 作为光催化剂的情况下，使用 Langlois 试剂完成了无金属可见光诱导的 α-溴酮/烷基溴/苄基溴/官能化烯丙基（Baylis-Hillman）溴的 Bunte 盐的三氟甲基化反应。形成特权三氟甲基硫醇化合成子。该方法简单明了，操作简单，底物范围广，官能团耐受性好。