申请人:BASF Aktiengesellschaft
公开号:US05405968A1
公开(公告)日:1995-04-11
Methine dyes with a polyketo group I ##STR1## where A is ##STR2## R.sup.1 is a 5- or 6-membered cycloaliphatic radical which contains one or two hetero atoms from the group --NR.sup.4 --, --O-- and --S-- and which may be fused to an isoaromatic or heteroaromatic group, R.sup.2 and R.sup.3 are identical or different C.sub.1 -C.sub.10 -alkyl groups or together one of the radicals R.sup.1, and m and n are identical or different integers from 0 to 3, are useful as drugs, for producing singlet oxygen, as sensitizers in electrophotographic layers and for photopolymerizations and as laser light sensitive dyes in optical recording media; also novel triketo- and tetraketomethine dyes.
具有多聚酮基团的甲烷染料I ##STR1## 其中A为##STR2## R.sup.1是一个含有来自--NR.sup.4 --,--O--和--S--组的一个或两个杂原子的5-或6元环脂肪基团,可以与异芳香族或杂芳香族基团融合,R.sup.2和R.sup.3是相同或不同的C.sub.1-C.sub.10-烷基团或一起是R.sup.1中的一个基团,m和n是0到3之间的相同或不同的整数,可用作药物,用于产生单重氧,作为电子照相层中的增感剂,用于光聚合反应,并作为光学记录介质中的激光光敏染料;同时还包括新型的三酮和四酮甲烷染料。