Methyl substituted halomethyl-s-triazine suitable for reaction with an aldehyde and a condensation catalyst in an organic solvent to produce a chromophore substituted vinyl halomethyl-s-triazine can be made by reacting haloacelonit- rile with acetonitrile and a Friedal Craft catalyst, adding hydrogen chloride, dissolving the resultant product in organic solvent that is to be used in the second stage of the reaction, purging the solution with inert gas, adding water and separating insolubles. The resultant solution, generally after drying, can be used without further purification procedures.
适合与醛和缩合催化剂在有机溶剂中反应生成发色团取代的
乙烯基卤甲基-S-三嗪的甲基取代卤甲基-S-三嗪,可通过以下方法制得:卤代
丙烯腈与
乙腈和 Friedal Craft 催化剂反应,加入
氯化氢,将生成物溶解在反应第二阶段所用的有机溶剂中,用惰性气体吹扫溶液,加
水并分离不溶物。所得溶液一般在干燥后即可使用,无需进一步净化。