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    • 6. 发明申请
    • Process for producing 5-iodo-2-methylbenzoic acid
    • 5-碘-2-甲基苯甲酸的制备方法
    • US20060167312A1
    • 2006-07-27
    • US10563088
    • 2004-07-01
    • Takafumi YoshimuraToshio HidakaYoshifumi SatoNorio FushimiKazuhiro Yamada
    • Takafumi YoshimuraToshio HidakaYoshifumi SatoNorio FushimiKazuhiro Yamada
    • C07C63/04
    • C07C51/363C07C63/70
    • The present invention provides a process for producing 5-iodo-2-methylbenzoic acid through iodination of 2-methylbenzoic acid, the process including, as essential steps, a reaction step of iodinating 2-methylbenzoic acid in the presence of a microporous compound, iodine, an oxidizing agent, and acetic anhydride, and a purification step including sublimation, distillation, crystallization, or a combination of two or more of these. According to the present invention, 5-iodo-2-methylbenzoic acid, which is useful for producing functional chemicals such as drugs, can be produced at high purity and high yield in a simple manner. Since the production process includes a simple reaction step and a simple separation/purification step, the load of purification is mitigated. In addition, the microporous compound such as a zeolite catalyst which has been separated and recovered from the reaction mixture can be repeatedly employed after performing of a simple treatment. Thus, the production process ensures a long service life of catalysts and high efficiency.
    • 本发明提供了通过2-甲基苯甲酸碘化生产5-碘-2-甲基苯甲酸的方法,该方法包括作为必要步骤的步骤,在微孔化合物存在下碘化2-甲基苯甲酸,碘 ,氧化剂和乙酸酐,以及包括升华,蒸馏,结晶或这些中的两种或更多种的组合的纯化步骤。 根据本发明,可以以高纯度和高产率以简单的方式制备可用于制备功能性化学物质如药物的5-碘-2-甲基苯甲酸。 由于生产过程包括简单的反应步骤和简单的分离/纯化步骤,减轻了纯化负荷。 此外,在进行简单处理之后,可以重复使用从反应混合物中分离回收的微孔化合物如沸石催化剂。 因此,生产过程确保催化剂的使用寿命长,效率高。
    • 7. 发明授权
    • Process for producing 5-iodo-2-methylbenzoic acid
    • 5-碘-2-甲基苯甲酸的制备方法
    • US07642374B2
    • 2010-01-05
    • US10563088
    • 2004-07-01
    • Takafumi YoshimuraToshio HidakaYoshifumi SatoNorio FushimiKazuhiro Yamada
    • Takafumi YoshimuraToshio HidakaYoshifumi SatoNorio FushimiKazuhiro Yamada
    • C07C51/42
    • C07C51/363C07C63/70
    • The present invention provides a process for producing 5-iodo-2-methylbenzoic acid through iodination of 2-methylbenzoic acid, the process including, as essential steps, a reaction step of iodinating 2-methylbenzoic acid in the presence of a microporous compound, iodine, an oxidizing agent, and acetic anhydride, and a purification step including sublimation, distillation, crystallization, or a combination of two or more of these. According to the present invention, 5-iodo-2-methylbenzoic acid, which is useful for producing functional chemicals such as drugs, can be produced at high purity and high yield in a simple manner. Since the production process includes a simple reaction step and a simple separation/purification step, the load of purification is mitigated. In addition, the microporous compound such as a zeolite catalyst which has been separated and recovered from the reaction mixture can be repeatedly employed after performing of a simple treatment. Thus, the production process ensures a long service life of catalysts and high efficiency.
    • 本发明提供了通过2-甲基苯甲酸碘化生产5-碘-2-甲基苯甲酸的方法,该方法包括作为必要步骤的步骤,在微孔化合物存在下碘化2-甲基苯甲酸,碘 ,氧化剂和乙酸酐,以及包括升华,蒸馏,结晶或这些中的两种或更多种的组合的纯化步骤。 根据本发明,可以以高纯度和高产率以简单的方式制备可用于制备功能性化学物质如药物的5-碘-2-甲基苯甲酸。 由于生产过程包括简单的反应步骤和简单的分离/纯化步骤,减轻了纯化负荷。 此外,在进行简单处理之后,可以重复使用从反应混合物中分离回收的微孔化合物如沸石催化剂。 因此,生产过程确保催化剂的使用寿命长,效率高。
    • 9. 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。