Arylacetic acids were used as sources of benzyl radicals under tetrabutylammonium decatungstate photocatalyzed conditions for the benzylation of electron-poor olefins. The reaction proceeds smoothly in a mixed aqueous medium (MeCN/H2O 2/1) in the presence of NaHCO3, NaClO4, and an electron transfer agent (biphenyl). The reaction tolerates a wide variety of functional groups on the aromatic ring (whether
在四丁基
铵去
癸酸盐光催化条件下,
丙烯酸被用作苄基的来源,用于贫电子烯烃的苄基化。在NaHCO 3,NaClO 4和电子转移剂(
联苯)的存在下,反应在混合
水性介质(MeCN / H 2 O 2/1)中平稳进行。该反应可耐受芳环上的各种官能团(无论是供电子还是吸电子),并可扩展为杂芳族类似物。烯烃具有自由基陷阱和电子受体的双重作用。本方法还可扩展至芳基
丙酸(包括非甾体抗炎药
布洛芬和
氟比洛芬),以及
扁桃酸衍
生物。