申请人:Ciba-Geigy Corporation
公开号:US05481002A1
公开(公告)日:1996-01-02
There are disclosed compounds ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently of one another hydrogen, a C.sub.1 -C.sub.12 alkyl group, a C.sub.1 -C.sub.12 alkoxy group, a C.sub.5 -C.sub.8 cycloalkyl group, a C.sub.5 -C.sub.8 cycloalkoxy group, a C.sub.5 -C.sub.8 cycloalkylthio group, a C.sub.6 -C.sub.10 aryl group, a C.sub.6 -C.sub.10 aryloxy group, a C.sub.6 -C.sub.10 arylthio group, nitro, halogen, cyano, --COOH, --COOR.sub.7, --NR.sub.8 R.sub.9 or --CONR.sub.8 R.sub.9, where R.sub.7 is C.sub.1 -C.sub.20 alkyl, C.sub.5 -C.sub.8 acycloalkyl, phenyl or phenyl-C.sub.1 -C.sub.4 alkyl, and R.sub.8 and R.sub.9 are each independently of the other hydrogen, C.sub.1 -C.sub.8 alkyl, phenyl or phenyl-C.sub.1 -C.sub.4 alkyl, X is nitrogen or CR.sub.4, Y is nitrogen or CR.sub.5 and Z is nitrogen or CR.sub.6, and R.sub.4, R.sub.5 and R.sub.6 are each independently of one another hydrogen, a straight-chain or branched C.sub.1 -C.sub.12 alkyl group or a C.sub.6 -C.sub.10 aryl group, with the proviso that, if X is CR.sub.4 and Y is CR.sub.5 and Z is nitrogen or CR.sub.6, or if Y is CR.sub.5 and Z is CR.sub.6 and X is nitrogen or CR.sub.4, then each pair of substituents R.sub.4 and R.sub.5 and R.sub.5 and R.sub.6 form a group --CH.dbd.C(R.sub.10)--C(R.sub.11).dbd.CH-- or a tetramethylene group, wherein R.sub.10 and R.sub.11 are each independently of the other hydrogen, C.sub.1 -C.sub.6 alkyl, phenyl or phenyl-C.sub.1 -C.sub.4 alkyl. The compounds are suitable for use as active components in thermal information recording systems, especially for laser-optical information recording media.
披露了化合物##STR1##其中R.sub.1、R.sub.2和R.sub.3分别独立地为氢、C.sub.1 -C.sub.12烷基、C.sub.1 -C.sub.12烷氧基、C.sub.5 -C.sub.8环烷基、C.sub.5 -C.sub.8环烷氧基、C.sub.5 -C.sub.8环烷硫基、C.sub.6 -C.sub.10芳基、C.sub.6 -C.sub.10芳氧基、C.sub.6 -C.sub.10芳硫基、硝基、卤素、氰基、--COOH、--COOR.sub.7、--NR.sub.8 R.sub.9或--CONR.sub.8 R.sub.9,其中R.sub.7为C.sub.1 -C.sub.20烷基、C.sub.5 -C.sub.8非环烷基、苯基或苯基-C.sub.1 -C.sub.4烷基,R.sub.8和R.sub.9各自独立地为氢、C.sub.1 -C.sub.8烷基、苯基或苯基-C.sub.1 -C.sub.4烷基,X为氮或CR.sub.4,Y为氮或CR.sub.5,Z为氮或CR.sub.6,且R.sub.4、R.sub.5和R.sub.6各自独立地为氢、直链或支链C.sub.1 -C.sub.12烷基或C.sub.6 -C.sub.10芳基,但若X为CR.sub.4、Y为CR.sub.5且Z为氮或CR.sub.6,或者若Y为CR.sub.5且Z为CR.sub.6且X为氮或CR.sub.4,则每对取代基R.sub.4和R.sub.5以及R.sub.5和R.sub.6形成一个基团--CH.dbd.C(R.sub.10)--C(R.sub.11).dbd.CH--或四亚甲基基团,其中R.sub.10和R.sub.11各自独立地为氢、C.sub.1 -C.sub.6烷基、苯基或苯基-C.sub.1 -C.sub.4烷基。这些化合物适用于作为热信息记录系统中的活性组分,尤其适用于激光光学信息记录介质。