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    Process for preparing phthalide and naphthalide indicator dyes
    41.
    发明授权
    Process for preparing phthalide and naphthalide indicator dyes 失效
    制备苯酞和萘指示剂染料的方法

    公开(公告)号：US3931228A

    公开(公告)日：1976-01-06

    申请号：US446716

    申请日：1974-02-28

    申请人： Alan L. Borror

    发明人： Alan L. Borror

    IPC分类号： C07D307/885 ,  C07D311/92 ,  G03C8/48 ,  C07D209/10 ,  C07D209/12 ,  C07D209/14

    CPC分类号： C07D307/885 ,  C07D311/92 ,  G03C8/48

    摘要： This invention relates to a process of preparing phthalein indicator dyes including phthalides and naphthalides derived from certain hydroxy-substituted carbocyclic aryl compounds, such as phenols, and from certain N-heterocyclic aryl compounds, such as indoles, and to a process of preparing novel intermediates useful therein. According to the present invention, the selected carbocyclic compound or the selected N-heterocyclic compound is reacted with phthalaldehydic or naphthalaldehydic acid to form the corresponding (na)phthalidyl adduct which is treated with an oxidizing agent to yield the subject intermediates. To prepare the indicator dye, the intermediate, i.e., the oxidation product thus obtained is then reacted with a carbocyclic or heterocyclic aryl compound to yield the corresponding indicator dye. The oxidation products comprising the novel intermediates of the present invention may be dehydro or hydrated (na)phthalidyl adducts.

    摘要翻译： 本发明涉及一种制备酞菁指示剂染料的方法，所述染料包括衍生自某些羟基取代的碳环芳基化合物如酚类的苯酞和萘衍生物，以及某些N-杂环芳基化合物如吲哚，以及制备新型中间体的方法 在其中有用。 根据本发明，选择的碳环化合物或所选择的N-杂环化合物与邻苯二甲醛或萘醛酸反应形成相应的（na）酞基加合物，其用氧化剂处理以产生主题中间体。 为了制备指示剂染料，中间体即所得氧化产物然后与碳环或杂环芳基化合物反应，得到相应的指示剂染料。 包含本发明新型中间体的氧化产物可以是脱水或水合（na）的苯酞基加合物。

    Catalytic method for producing phenolphthalein compounds
    49.
    发明授权
    Catalytic method for producing phenolphthalein compounds 有权
    用于生产酚酞化合物的催化方法

    公开(公告)号：US07915430B2

    公开(公告)日：2011-03-29

    申请号：US12239908

    申请日：2008-09-29

    申请人： Venkata Rama Narayanan Ganapathy Bhotla ,  Shivappa Basappa Halligudi ,  Gurram Kishan ,  Salkod Parameshwar Mallika ,  Bhaskar Veldurthy

    发明人： Venkata Rama Narayanan Ganapathy Bhotla ,  Shivappa Basappa Halligudi ,  Gurram Kishan ,  Salkod Parameshwar Mallika ,  Bhaskar Veldurthy

    IPC分类号： C07D209/48 ,  C07D307/20

    CPC分类号： C07D307/885

    摘要： A method of producing a phenolphthalein comprises reacting a phenolic compound of the formula: wherein R1 is a hydrogen or a C1-C12 hydrocarbyl group, with a phthalic anhydride compound of the formula: wherein R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen, in the presence of a heterogeneous catalyst and a promoter to form a reaction mixture comprising a phenolphthalein compound of the formula: wherein each R1 is independently a hydrogen or a C1-C12 hydrocarbyl group, and R2 is a hydrogen, a C1-C12 hydrocarbyl group, or a halogen; wherein the heterogeneous catalyst comprises a metal oxide composition in combination with a porous support, wherein the metal is molybdenum, tungsten, or a combination comprising at least one of the foregoing metals.

    摘要翻译： 一种生产酚酞的方法包括使下式的酚化合物：其中R1是氢或C1-C12烃基，与下式的邻苯二甲酸酐化合物反应：其中R2是氢，C1-C12烃基， 或卤素，在非均相催化剂和促进剂的存在下，形成包含下式的酚酞化合物的反应混合物：其中每个R 1独立地是氢或C 1 -C 12烃基，并且R 2是氢，C 1 -C12烃基或卤素; 其中所述非均相催化剂包括与多孔载体组合的金属氧化物组合物，其中所述金属是钼，钨或包含至少一种前述金属的组合。