申请人:Etat Francais represente par le Delegue General pour l'Armement
公开号:US04287337A1
公开(公告)日:1981-09-01
The invention relates to spiropyran compounds. They have the general formula (I): ##STR1## in which: X represents the CH.sub.2 group or a sulfur atom; R.sub.1 and R.sub.2 represent electron donor and/or acceptor groups selected for instance from the group NO.sub.2, COC.sub.6 H.sub.5, CN, the halogens, the acyl substituents, alkoxy substituents, the hydrogen atom, the alkyl and mercaptoalkyl groups, the ethers of the formula CH.sub.2 OR, thioethers of the formula CH.sub.2 SR and amines of the formula CH.sub.2 NR.sub.2 in which R represents an alkyl group; R.sub.3 is a linear or branched alkyl group, having 1 to 18 carbon atoms, or an arylalkyl or alkenyl group. --R.sub.4,R.sub.5,R.sub.6,R.sub.7,R.sub.8 and R.sub.9 have one of the meanings indicated for R.sub.3 or represent, two by two, with the group in ortho position, a --(CH.sub.2).sub.n -- group in which n is a number between 5 and 10. R.sub.10 represents a hydrogen atom if X=S and if X=CH.sub.2 a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an arylalkyl group in which the alkyl group has 1 to 5 carbon atoms, or an alkenyl group having 2 to 10 carbon atoms. The compounds in accordance with the invention have photochromic properties and are suitable for the recording of information on transparent or opaque supports.
本发明涉及螺环喹啉化合物。它们具有通式(I):##STR1## 其中:X代表CH.sub.2基团或硫原子;R.sub.1和R.sub.2代表选自NO.sub.2、COC.sub.6H.sub.5、CN、卤素、酰基取代基、烷氧基取代基、氢原子、烷基和巯基烷基基团、公式CH.sub.2OR的醚、公式CH.sub.2SR的硫醚和公式CH.sub.2NR.sub.2的胺中的电子给体和/或受体基团,其中R代表烷基;R.sub.3是线性或支链烷基,具有1到18个碳原子,或芳基烷基或烯丙基基团。--R.sub.4,R.sub.5,R.sub.6,R.sub.7,R.sub.8和R.sub.9具有R.sub.3指示的含义之一,或者与邻位的基团成对,表示--(CH.sub.2).sub.n--基团,其中n是5到10之间的数字。R.sub.10表示如果X=S,则为氢原子,如果X=CH.sub.2,则为氢原子、具有1到18个碳原子的烷基、其中烷基具有1到5个碳原子的芳基烷基或具有2到10个碳原子的烯丙基。根据本发明的化合物具有光致变色性能,适用于在透明或不透明载体上记录信息。