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    • 3. 发明授权
    • Heterocyclic chromenes
    • 杂环色烯
    • US5527911A
    • 1996-06-18
    • US33893
    • 1993-03-19
    • Robert GuglielmettiJean L. PozzoAndre Samat
    • Robert GuglielmettiJean L. PozzoAndre Samat
    • C07D491/048C07D491/04C07D491/052C07D493/04C07D495/04C07D513/04C09D5/00C09D7/12C09K9/02G03C1/685G03C1/73C07D491/12
    • C07D491/04C07D493/04C07D513/04G03C1/685G03C1/73
    • The invention relates to photochromic compounds of general formula: ##STR1## in which R.sup.a, R.sup.b and R.sup.c denote hydrogen; alkyl; aryl; OR, SR, COR or COOR, in which R denotes hydrogen, alkyl or aryl, amino of formula NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2 denote hydrogen, alkyl, cycloalkyl, aryl, R.sub.1 and R.sub.2 being capable of forming with the nitrogen atom, a heterocycle containing 4 to 7 members and capable of containing, in addition, one or more heteroatoms chosen from nitrogen, oxygen, sulfur, a halogen atom; a mono- or polyhaloalkyl group; an NO.sub.2, CN or SCN group; n and m denote integers from 1 to 5 depending on the number of substitutions on the nucleus and p may be equal to 1 or 2 depending on the number of substitutions on the nucleus; H is an aromatic heterocycle having 4 to 7 members containing one or more heteroatoms chosen from nitrogen, oxygen, sulfur, these heterocyclic nuclei being capable of being substituted by one or more alkyl, alkoxy, amino, aryl or aralkyl groups or condensed with an aromatic nucleus, and to their use in ophthalmic optics.
    • 本发明涉及以下通式的光致变色化合物:其中Ra,Rb和Rc表示氢; 烷基; 芳基; OR,SR,COR或COOR,其中R表示氢,烷基或芳基,式NR1R2的氨基,其中R1和R2表示氢,烷基,环烷基,芳基,R1和R2能够与氮原子一起形成杂环 含有4至7个成员并且还能够另外含有一个或多个选自氮,氧,硫,卤素原子的杂原子; 单卤代烷基或多卤代烷基; NO2,CN或SCN组; n和m表示1至5的整数,这取决于核上的取代数,p可以等于1或2,这取决于核上的取代数目; H是具有4至7个成员的芳族杂环,其含有一个或多个选自氮,氧,硫的杂原子,这些杂环核能够被一个或多个烷基,烷氧基,氨基,芳基或芳烷基取代或与芳族稠合 核,以及它们在眼科光学中的应用。