3-benzylidene benzheterazoles in ultraviolet screening compositions
    99.
    发明授权
    3-benzylidene benzheterazoles in ultraviolet screening compositions 失效
    3-亚苄基苯并唑在紫外线屏蔽组合物中的应用

    公开(公告)号:US4775526A

    公开(公告)日:1988-10-04

    申请号:US947854

    申请日:1986-12-30

    摘要: A compound of formula: ##STR1## wherein: x is oxygen, sulphur or an --NR--group, wherein R is hydrogen or a C.sub.1 -C.sub.6 alkyl group;R.sub.1 is hydrogen or a C.sub.1 -C.sub.6 alkyl, a C.sub.1 -C.sub.6 alkoxy, an -- SO.sub.2 Cl or -- SO.sub.2 NR.sub.4 R.sub.5 group wherein R.sub.4 and R.sub.5, which may be identical or different, are hydrogen, a C.sub.1 -C.sub.12 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl group, or R.sub.1 is an --SO.sub.3 H or --SO.sub.3.sup..crclbar. M.sup..sym. group wherein M is potassium or sodium or an N(R.sub.6).sub.4.sup..sym. group, wherein each R.sub.6, which may be identical or different, is hydrogen, a C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl group;R.sub.2 is hydrogen, a C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy group, or R.sub.1 and R.sub.2 together are a methylenedioxy group;R.sub.3 is hydrogen or an --SO.sub.3 H, --SO.sub.3.sup..crclbar. M.sup..sym. or --SO.sub.2 NR.sub.4 R.sub.5 group wherein M, R.sub.4 and R.sub.5, which may be the identical or different to the M, R.sub.4 and R.sub.5 groups respectively above, have the same meanings as above is useful in cosmetics for protection against ultra-violet rays.

    摘要翻译: 下式的化合物:其中:x是氧,硫或-NR-基,其中R是氢或C1-C6烷基; R 1是氢或C 1 -C 6烷基,C 1 -C 6烷氧基,-SO 2 Cl或-SO 2 NR 4 R 5基团,其中R 4和R 5可以相同或不同,是氢,C 1 -C 12烷基或C 2 -C 4羟基烷基, 或R 1是-SO 3 H或-SO 3( - )M(+)基团,其中M是钾或钠或N(R 6)4(+)基团,其中每个可以相同或不同的R 6是氢, C 1 -C 6烷基或C 2 -C 4羟烷基; R2是氢,C1-C6烷基或C1-C6烷氧基,或R1和R2一起是亚甲二氧基; R 3为氢或-SO 3 H,-SO 3( - )M(+)或-SO 2 NR 4 R 5基团,其中M,R 4和R 5可以与上述M,R 4和R 5基团相同或不同,具有相同含义 如上所述在化妆品中可用于防紫外线。