Reactions of 1,2,4,5-tetrafluoro-3,6-bis(vinylsulfonyl)benzene with pyrrolidine, piperidine, and morpholine lead to formation of different products, depending mainly on the reactant ratio. In the presence of 2 equiv of cyclic amine, adducts at both vinylsulfonyl groups are formed, while in reactions with 4 equiv of cyclic amine, the addition at the double bonds is accompanied by nucleophilic replacement of one or two fluorine atoms in the benzene ring.
1,2,4,5-四
氟-3,6-双(
乙烯基磺酰基)苯与
吡咯烷、
哌啶和吗啉的反应会导致形成不同的产物,这主要取决于反应物的比例。在2当量环胺存在下,两个
乙烯基磺酰基均形成加合物,而与4当量环胺反应时,双键加成伴随着苯环中一个或两个
氟原子的亲核取代。