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    • 61. 发明申请
    • METHOD FOR PRODUCING PENTAFLUOROSULFANYL BENZOIC ACID
    • 生产双酚A苯甲酸的方法
    • US20140336404A1
    • 2014-11-13
    • US14362779
    • 2012-12-04
    • UBE Industries, Ltd.
    • Norimichi SaitoJunichi Chika
    • C07C51/04C07C63/70
    • C07C51/04C07C63/70C07C381/00
    • Provided is a simple, safe, and industrially practical method for producing a pentafluorosulfanylbenzoic acid.This method includes (A) a providing step of providing a trihalomethyl(pentafluorosulfanylbenzene) represented by general formula (1): where X is a halogen atom, n is an integer of 1≦n≦3, and the hydrogen atoms on the benzene ring are optionally replaced with a group having an oxygen atom, a group having a nitrogen atom, or a halogen atom; (B1) a step of reacting the trihalomethyl(pentafluorosulfanylbenzene) with a carboxylic acid, water, or a disiloxane represented by general formula (b): R3Si—O—SiR3   (b) (where R is an alkyl group) in the presence of an acid other than carboxylic acids to form a pentafluorosulfanylbenzoic halide represented by general formula (2a): where X and n are as defined above, and the hydrogen atoms on the benzene ring are optionally replaced with the group or atom defined above; and (B2) a step of converting the pentafluorosulfanylbenzoic halide into a pentafluorosulfanylbenzoic acid represented by general formula (2): where n is as defined above, and the hydrogen atoms on the benzene ring are optionally replaced with the group or atom defined above.
    • 提供了一种简单,安全和工业上实用的五氟硫烷基苯甲酸的制备方法。 该方法包括(A)提供由通式(1)表示的三卤代甲基(五氟硫烷基苯)的提供步骤:其中X是卤素原子,n是1和n1E的整数; n和nlE; 3,苯环上的氢原子 任选被具有氧原子的基团,具有氮原子的基团或卤素原子取代; (B1)使通式(b)表示的三卤代甲基(五氟硫烷基苯)与羧酸,水或二硅氧烷反应的步骤:R 3 Si-O-SiR 3(b)(其中R为烷基) 除羧酸以外的酸以形成由通式(2a)表示的五氟硫烷基苯甲酰卤:其中X和n如上所定义,苯环上的氢原子任选被上述定义的基团或原子取代; 和(B2)将五氟硫烷基苯甲酸酯转化为由通式(2)表示的五氟硫烷基苯甲酸的步骤:其中n定义如上,苯环上的氢原子任选被上述定义的基团或原子取代。
    • 67. 发明授权
    • Process for production of iodine compounds and process for production of high-purity 5-iodo-2-methylbenzoic acid
    • 生产碘化合物的方法和生产高纯度5-碘-2-甲基苯甲酸的方法
    • US07750182B2
    • 2010-07-06
    • US10545005
    • 2004-02-10
    • Toshio HidakaTakafumi YoshimuraYoshifumi SatoNorio FushimiMasaharu Doya
    • Toshio HidakaTakafumi YoshimuraYoshifumi SatoNorio FushimiMasaharu Doya
    • C07C17/00C07C63/04
    • C07C253/30C07B39/00C07C17/12C07C17/156C07C17/158C07C51/363C07C51/43C07C25/02C07C25/13C07C25/18C07C25/125C07C63/70C07C255/50
    • Provided is a production method for an iodine compound in which iodine is reacted with a substrate in the presence of a porous material having a pore diameter of 500 nm or less or in the presence of the above porous material and an oxidizing agent and a production process for high purity 5-iodo-2-methylbenzoic acid comprising an iodination reaction step carried out by the above-mentioned, a crystal precipitation and separation step in which a product is precipitated by adding water or cooling and then separated and a purification step in which crystal separated is recrystallized using an organic solvent. According to the production method for an iodine compound described above, iodine can be introduced into various substrates at a high selectivity. Since expensive metals and specific reagents do not have to be used, it can readily be carried out in an industrially scale, and the product having a high purity can be obtained. Further, the process comprising the iodination reaction, separation and purification steps described above makes it possible to readily obtain at a high yield, 5-iodo-2-methylbenzoic acid having a high purity which is useful in uses for functional chemical products such as medicines. The process of the present invention comprising iodination reaction, separation and purification steps is characterized by that it is simple in terms of a procedure and that the purification load is smaller, and it is very advantageous in industrially carrying out.
    • 提供一种碘化合物的制造方法,其中碘在孔径为500nm以下的多孔质材料的存在下,或者在上述多孔质材料和氧化剂的存在下,与基材反应,制造方法 包括通过上述进行的碘化反应步骤的高纯度5-碘-2-甲基苯甲酸,其中通过加入水或冷却然后分离产物而沉淀产物的晶体沉淀和分离步骤和纯化步骤,其中 使用有机溶剂重结晶晶体分离。 根据上述碘化合物的制造方法,能够以高选择性将碘引入各种基材中。 由于不需要使用昂贵的金属和特定试剂,因此可以容易地以工业规模进行,可以获得高纯度的产物。 此外,包括上述碘化反应,分离和纯化步骤的方法使得可以容易地以高产率获得具有高纯度的5-碘-2-甲基苯甲酸,其可用于诸如药物的功能性化学产品的用途 。 包括碘化反应,分离和纯化步骤的本发明方法的特征在于它在程序方面简单,净化负荷较小,在工业上非常有利。