申请人:Hoechst Aktiengesellschaft
公开号:US04062877A1
公开(公告)日:1977-12-13
A novel process had been found for preparing novel violet dyestuffs of the triphenylmethane series which is characterized by that an aluminum chloride or borotrifluoride or iron-III-chloride-complex compound of a 4,4',4"-trihalogenotriphenylmethylhalide is reacted with phenyl- or naphthylamine which are substituted in the m- or p-position in a molar ratio of 1 to 1.5 at 110.degree. to 135.degree. C and in an inert organic solvent, and the mono-phenyl or -naphthylamino- substituted halide formed is reacted with 5 - 20 mols of an ortho-substituted phenyl- or naphthylamine at 150.degree. to 190.degree. C. The dyestuffs so prepared are well suitable for printing paper and plastics and dyeing polyacrylonitrile fibers.
已经发现了一种新的方法来制备三苯甲烷系列的新紫色染料,其特点是将4,4',4"-三卤代三苯甲基卤化物的铝氯化物或三氟化硼或铁III氯化物络合物与在m-或p-位取代的苯基或萘基胺以1比1.5的摩尔比在110℃至135℃的惰性有机溶剂中反应,形成的单苯基或萘基氨基取代卤化物再与5-20摩尔的邻位取代的苯基或萘基胺在150℃至190℃反应。这样制备的染料非常适合于印刷纸张和塑料以及染色聚丙烯腈纤维。