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    • 6. 发明授权
    • Method for producing ibuprofen
    • 生产布洛芬的方法
    • US5166418A
    • 1992-11-24
    • US803744
    • 1991-12-04
    • Joel D. HendricksGraham N. Mott
    • Joel D. HendricksGraham N. Mott
    • C07C51/12
    • C07C51/12
    • A method is provided for the preparation of ibuprofen by carbonylating 1-(4'-isobutylphenyl)ethanol (IBPE) with carbon monoxide comprising initially a reaction mixture comprising IBPE, ibuprofen and a catalyst for the carbonylation with carbon monoxide under conditions to initiate the reaction, and continuing to feed carbon monoxide to the composition to produce the desired yield of ibuprofen. Preferably the catalyst comprises palladium and a monodentate phosphine ligand. The presence of ibuprofen in the feed composition when the reaction is initiated with CO makes it possible to obtain high selectivities to ibuprofen with substantially complete conversion of IBPE at much shorter reaction times than if no ibuprofen is present initially.
    • 提供了一种通过用一氧化碳羰基化1-(4'-异丁基苯基)乙醇(IBPE)来制备布洛芬的方法,该方法包括最初包含IBPE,布洛芬的反应混合物和用于一氧化碳羰基化的催化剂,以引发反应 并且继续将一氧化碳供给到组合物中以产生所需的布洛芬产率。 优选地,催化剂包括钯和单齿膦配体。 当用CO引发反应时,饲料组合物中布洛芬的存在使得有可能获得对布洛芬的高选择性,在比起没有首先出现布洛芬的短的反应时间下,基本上完全转化IBPE。