申请人:Bayer Aktiengesellschaft
公开号:US04289887A1
公开(公告)日:1981-09-15
Compounds of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 denote hydrogen, alkyl, alkoxy or halogen, A denotes aryl or a radical of the formula ##STR2## wherein R.sup.8 denotes aryl, alkyl, aralkyl, styryl or alkoxy, R.sup.9 denotes hydrogen, CN, COOR, CONRR' or R.sup.8 and X denotes N or C(R.sup.10), R.sup.4 and R.sup.10 denote hydrogen, alkyl or aryl, R.sup.5, R.sup.6 and R.sup.7 denote hydrogen, halogen or alkyl, inter alia, R denotes alkyl and R' denotes R or H, are valuable optical brighteners for polyesters, polyamides, cellulose esters and polyacrylonitrile.
式为##STR1##的化合物,其中R.sup.1、R.sup.2和R.sup.3代表氢、烷基、烷氧基或卤素,A代表芳基或式##STR2##的基团,其中R.sup.8代表芳基、烷基、芳基烷基、苯乙烯基或烷氧基,R.sup.9代表氢、CN、COOR、CONRR'或R.sup.8,X代表N或C(R.sup.10),R.sup.4和R.sup.10代表氢、烷基或芳基,R.sup.5、R.sup.6和R.sup.7代表氢、卤素或烷基,其中R代表烷基,R'代表R或H,对于聚酯、聚酰胺、纤维素酯和聚丙烯腈来说,这些化合物是有价值的光亮剂。