Novel 4-(v-triazolyl)-styryl compounds of the formula ##STR1## wherein n is 0, 1 or 2, R represents a hydrogen atom or an unsubstituted or substituted alkyl, alkenyl, aralkyl, alkanoyl or aroyl group and Q represents an unsubstituted or substituted 5-membered heterocyclic ring or, if n is 1 or 2, also represents hydrogen, the rings A, B and C being optionally substituted with further non-chromophoric substituents, processes for their preparation as well as a process for optically brightening organic materials on using said compounds are disclosed.
本发明公开了式子##STR1##的小说4-(v-三唑基)-
苯乙烯类化合物,其中n为0、1或2,R代表氢原子或未取代或取代的烷基、烯基、芳基烷基、酰基或芳酰基,Q代表未取代或取代的5-成员杂环环或,如果n为1或2,还代表氢,环A、B和C可选择地取代进一步的非色团取代基,公开了它们的制备过程以及利用所述化合物进行有机材料光学增白的过程。