The present invention provides a new metal-free cyclotrimerization reaction of alkynes to produce a 1,3,5-triacylarylene or 1,3,5-triacylbenzene. This reaction is catalyzed by secondary amines, is strictly regioselective, highly functionality-tolerant, and the resulting product can be obtained in high yields. This reaction can be further applied for the preparation of novel branched (co)polymers bearing the triacylarylenes as structural units. The preparation of the (co)polymers is carried out as a one-pot single-step reaction procedure, giving branched oligomers and polymers in high yields up to 90%. The produced (co)polymers are also processible, easily film-forming, and thermally stable.
本发明提供了一种新的无
金属催化剂的炔基环三聚反应,可产生1,3,5-三酰基
芳烃或1,3,5-三酰基苯。该反应由二级胺催化,具有严格的区域选择性,高度的官能团容忍性,所得产物可以高产率地获得。该反应还可进一步应用于制备具有三酰基
芳烃为结构单元的新型支化(共)聚合物。(共)聚合物的制备采用一锅法单步反应程序进行,可高产率地获得支化寡聚体和聚合物,产率高达90%。所产生的(共)聚合物也易加工、易成膜和热稳定性好。