2,2-二氟乙烯基对甲苯磺酸酯(2)与吡啶和异喹啉的叶立德(3)在DMF溶剂中,以K2CO3与Et3N作为混合碱,70 ℃条件下通过1,3-偶极反应24 h,以50%~70%的产率合成得到2位单氟环加成产物,2-氟中氮茚及2-氟苯并中氮茚衍生物4.通过红外光谱、核磁共振氢谱、氟谱、质谱和元素分析测试对该系列化合物进行了结构确认,并探讨了反应机理.
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