Oxidative halogenation of aromatic compound
    1.
    发明授权
    Oxidative halogenation of aromatic compound 失效
    芳香族化合物的氧化卤化

    公开(公告)号:US07084317B2

    公开(公告)日:2006-08-01

    申请号:US10398670

    申请日:2001-10-05

    CPC classification number: C07B39/00 C07C17/12 C07C41/22 C07C43/225

    Abstract: A process for the halogenation of an aromatic compound wherein the aromatic compound is admixed with a halogenating agent in the presence of an ionic liquid is described. The method in preferably halide, sulfur or nitrate ionic liquids has significant advantages over conventional halogenation reactions. These are that the reaction starts with, e.g., a halide salt rather than, e.g., a halogen, and is therefore more convenient and safer. Also, when the reaction is performed in a nitrate ionic liquid, the only by-product is water.

    Abstract translation: 描述了在离子液体存在下将芳族化合物与卤化剂混合的芳族化合物的卤化方法。 优选卤化物,硫或硝酸根离子液体的方法比常规卤化反应具有显着的优点。 这些反应开始于例如卤化物盐而不是例如卤素,因此更方便和更安全。 此外,当在硝酸根离子液体中进行反应时,仅副产物是水。

    Oxidation of alkyl-aromatic compounds
    2.
    发明授权
    Oxidation of alkyl-aromatic compounds 失效
    烷基芳族化合物的氧化

    公开(公告)号:US07094925B2

    公开(公告)日:2006-08-22

    申请号:US10398532

    申请日:2001-10-05

    CPC classification number: C07C51/27 C07C63/06

    Abstract: A process for the oxidation of an alkyl-aromatic compound, wherein the aromatic compound is admixed with an oxidising agent or sulfur compound in the presence of an ionic liquid is described. In this process, air, dioxygen, peroxide, superoxide, any other form of active oxygen, nitrite, nitrate, nitric acid or other oxides (or oxyhalides) of nitrogen (hydrate or anhydrous) are preferably used as the oxidising agent. The process is usually under Bronsted acidic conditions. The product of the oxidation reaction is preferably a carboxylic acid or ketone or an intermediate compound in the oxidation such as an aldehyde, or alcohol. The oxidation is preferably performed in an ionic liquid containing an acid promoter such as methanesulfonic acid.

    Abstract translation: 描述了在离子液体存在下将芳族化合物与氧化剂或硫化合物混合的烷基 - 芳族化合物的氧化方法。 在该方法中,优选使用空气,二氧,过氧化物,超氧化物,任何其它形式的活性氧,亚硝酸盐,硝酸盐,硝酸或氮(水合物或无水)的其它氧化物(或卤氧化物)作为氧化剂。 该过程通常在Bronsted酸性条件下。 氧化反应的产物优选是氧化中的羧酸或酮或中间体化合物,例如醛或醇。 氧化优选在含有酸促进剂如甲磺酸的离子液体中进行。

    Aromatic nitration reactions
    4.
    发明授权
    Aromatic nitration reactions 失效
    芳香硝化反应

    公开(公告)号:US06906231B2

    公开(公告)日:2005-06-14

    申请号:US10398692

    申请日:2001-10-05

    CPC classification number: C07C201/08 C07C205/06 C07C205/12 C07C205/37

    Abstract: A process for the nitration of an aromatic compound, wherein the aromatic compound is admixed with a nitrating agent in the presence of an ionic liquid is described. The method for the nitration of aromatic compounds in (e.g. neutral) ionic liquids has advantages over conventional nitrations, such as the only by-product being water, the ionic liquid not being consumed and the nitrating agent being relatively inexpensive.

    Abstract translation: 描述了在离子液体存在下将芳族化合物与硝化剂混合的芳族化合物的硝化方法。 在(例如中性)离子液体中硝化芳族化合物的方法具有优于常规硝化的优点,例如仅有副产物是水,离子液体不被消耗,硝化剂相对便宜。

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