SYNTHESIS OF ACYLARYLENES AND HYPERBRANCHED POLY(ACLARYLENE)S BY METAL-FREE CYCLOTRIMERIZATION OF ALKYNES
申请人:Tang Benzhong
公开号:US20100129757A1
公开(公告)日:2010-05-27
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烃环三聚反应,可产生1,3,5-三芳基酰基苯或1,3,5-三芳基酰基苯。该反应由二级胺催化,严格区域选择性,高度耐受官能团,产物可以高产率得到。此反应可以进一步应用于制备新型支化(共)聚合物,其中三芳基酰基苯作为结构单元。通过一锅法单步反应程序进行(共)聚合物的制备,可高产率得到分支寡聚体和聚合物,产率高达90%。所产生的(共)聚合物也易于加工,易于成膜,并具有热稳定性。