3-(Julolidinyl)-benz[d]isothiazole-1,1-dioxide
    5.
    发明授权
    3-(Julolidinyl)-benz[d]isothiazole-1,1-dioxide 失效
    3-(月桂烷基) - 苯并[d] {9异噻唑-1,1-二氧化物

    公开(公告)号:US4140689A

    公开(公告)日:1979-02-20

    申请号:US836023

    申请日:1977-09-23

    CPC分类号: G03C1/83 C07D455/04 G03C8/48

    摘要: This invention relates to 3-(julolidinyl)-benz[d]-isothiazole-1,1-dioxide useful as an intermediate in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]-isothiazole-1,1-dioxide dyes which find utility as, for example, photographic optical filter agents and filter agent precursors.

    摘要翻译: 本发明涉及可用作合成某些3,3-二取代-2,3-二氢苯并[d] - 异噻唑-1的中间体的3-(三环素基) - 苯并[d] - 异噻唑-1,1-二氧化物, 可用作例如照相光学过滤剂和过滤剂前体的二氧化氯染料。

    Cyclic amino containing benzisothiazoles
    6.
    发明授权
    Cyclic amino containing benzisothiazoles 失效
    环状氨基苯并异噻唑

    公开(公告)号:US4139704A

    公开(公告)日:1979-02-13

    申请号:US836022

    申请日:1977-09-23

    IPC分类号: C07D275/06 C07D417/10

    CPC分类号: C07D275/06

    摘要: This invention relates to 3-(phenyl/naphthyl)benz[d]isothiazole-1,1-dioxides wherein the phenyl or naphthyl substituent possesses an N-heterocyclic moiety in the para position. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility as, for example, photographic optical filter agents and filter agent precursors.

    摘要翻译: 本发明涉及3-(苯基/萘基)苯并[d]异噻唑-1,1-二氧化物,其中苯基或萘基取代基在对位具有N-杂环部分。 这些化合物可用作合成某些3,3-二取代-2,3-二氢苯并[d]异噻唑-1,1-二氧化物染料的中间体,其可用作例如照相光学过滤剂和过滤剂前体。

    Process for preparing polyhalo phenols
    7.
    发明授权
    Process for preparing polyhalo phenols 失效
    制备多羟基酚的方法

    公开(公告)号:US3666819A

    公开(公告)日:1972-05-30

    申请号:US3666819D

    申请日:1968-07-31

    摘要: A process is provided for the hydrolysis of polyhalobenzenes to polyhalophenols in good yields and purity by initially reacting ethylene glycol with an alkali metal hydroxide to obtain a mixture comprising ethylene glycol alkali metal derivative, alkali metal hydroxide and ethylene glycol, adding to the latter mixture a mono- or di-alkylated benzene, such as toluene or ethylbenzene, then introducing a polyhalobenzene, whereby hydrolysis of the latter occurs and, thereafter, recovering the hydrolyzed benzene.

    摘要翻译: 提供一种通过使乙二醇与碱金属氢氧化物最初反应得到包含乙二醇碱金属衍生物,碱金属氢氧化物和乙二醇的混合物,以良好的产率和纯度将多卤苯水解成多卤酚的方法, 单烷基化或二烷基化的苯如甲苯或乙苯,然后引入聚卤苯,由此发生水解,然后回收水解的苯。