Photochromic naphthopyran compounds
    10.
    发明授权
    Photochromic naphthopyran compounds 失效
    光致变色萘并吡喃化合物

    公开(公告)号:US5623005A

    公开(公告)日:1997-04-22

    申请号:US530162

    申请日:1995-11-02

    摘要: A naphthopyran compound of general formula (I) ##STR1## wherein R.sub.1 represents a group of the formula --NR.sub.2 R.sub.3 wherein each of R.sub.2 and R.sub.3, which may be the same or different, independently represents an alkyl group, or a carbocyclic or heterocyclic group, or R.sub.2 and R.sub.3 taken together with the nitrogen atom to which they are attached represent a heterocyclic ring having one or more hetero atoms and which may optionally carry at least one substituent selected from alkyl, aryl, or heteroaryl groups; each of R.sub.4 and R.sub.5, which may be the same or different, independently represents an alkyl, alkenyl, carbocyclic or heterocyclic group, or R.sub.4 and R.sub.5 taken together with the carbon atom to which they are attached form a carboxylcyclic ring or a heterocyclic ring; and R.sub.6 represents a hydrogen atom or a substituent selected from alkyl, alkoxy, aryl, aryloxy, heteroaryl, halogen, a group of formula R.sub.1 as defined above, azo, imino, amide, carboxylate, ester, cyano, trifluoromethyl or nitro, and in addition R.sub.6 may represent a carbocyclic or heterocyclic ring fused to ring A. The naphthopyran compounds of the invention are useful as photochromic materials in lenses, e.g. sunglasses, and photochromic transparencies for cars and aircraft. The invention also provides, as new intermediate compounds, amine-substituted chloro-naphthols and amine-substituted naphthols.

    摘要翻译: PCT No.PCT / GB94 / 00628 Sec。 371日期:1995年11月2日 102(e)1995年11月2日日期PCT 1994年3月25日PCT公布。 公开号WO94 / 22850 PCT 日期:1994年10月13日通式(I)萘并吡喃化合物其中R 1表示式-NR 2 R 3的基团,其中R 2和R 3可以相同或不同,各自独立地表示烷基 ,或碳环或杂环基团,或与它们所连接的氮原子一起的R2和R3表示具有一个或多个杂原子的杂环,并且其可任选地携带至少一个选自烷基,芳基或杂芳基的取代基 团体 R 4和R 5可以相同或不同,各自独立地表示烷基,烯基,碳环或杂环基团,或者R 4和R 5与它们所连接的碳原子一起形成羧基环或杂环; 并且R 6表示氢原子或选自烷基,烷氧基,芳基,芳氧基,杂芳基,卤素,如上定义的式R 1的基团的取代基,偶氮,亚氨基,酰胺,羧酸酯,酯,氰基,三氟甲基或硝基, 另外,R6可以表示与环A稠合的碳环或杂环。本发明的萘并吡喃化合物可用作透镜中的光致变色材料,例如 太阳镜和汽车和飞机的光致变色透明胶片。 本发明还提供了作为新的中间体化合物,胺取代的氯萘酚和胺取代的萘酚。