Triazines. XX.1 s-triazine as a new co-reactant in polymer synthesis
作者:Christoph Grundmann、Alfred Kreutzberger
DOI:10.1002/pol.1959.1203813413
日期:1959.8
Trimeric hydrogen cyanide, the structure of which has recently been established as striazine, exhibits as most characteristic phenomenon a marked readiness to undergo ring cleavage upon the action of nucleophilic reagents. This susceptibility to ring cleavage makes s-triazine an important source for methine (CH) groups by means of which other functional groups can be linked each other. Advantage has
三聚氰化氢,其结构最近已被确定为三嗪,表现出最典型的现象,即在亲核试剂的作用下易于进行环裂解。这种对开环的敏感性使 s-三嗪成为次甲基 (CH) 基团的重要来源,其他官能团可以通过这些基团相互连接。已利用 s-三嗪的次甲基化能力来连接二胺中的官能团。虽然脂肪族二胺系列的低级成员,即乙二胺和 1,3-丙二胺,与 s-三嗪反应生成环状化合物,但高级二胺同系物如 1,5-戊二胺和 1,6-己二胺仅提供开链聚合物称为聚脒。1,4-丁二胺,处于这两个二胺类别的边缘,形成环状化合物和开链聚合物。在聚酰胺合成中,中间体的成功分离提供了形成模式的信息图。鉴于其他官能团,如SH、NHNH2和OH也适用于该反应,s-三嗪可被认为是新型含杂原子链状聚合物的新型重要原料。