申请人:Ciba-Geigy Corporation
公开号:US04297234A1
公开(公告)日:1981-10-27
Benzoxazolyl-stilbenes of the formula ##STR1## in which R is a 6-membered heterocyclic radical which has 2 nitrogen atoms in the o-position, m-position or p-position relative to one another, and one of Z and Z.sub.o is hydrogen and the other is hydrogen or chlorine, and the benzene nucleus A can carry conventional non-chromophoric substituents, processes for their preparation and their use for the fluorescent brightening of organic material.
Benzoxazolyl-stilbenes的化学式为##STR1##,其中R是一个6元杂环基团,在o-位置、m-位置或p-位置相对于彼此有2个氮原子,Z和Z.sub.o中的一个是氢,另一个是氢或氯,苯环A可以携带传统的非色团取代基,以及它们的制备过程和它们用于有机材料荧光增白的用途。