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    • 2. 发明公开
    • 4-알킬페놀류의 제조방법
    • 生产4-烷基苯酚的方法
    • KR1020050044916A
    • 2005-05-13
    • KR1020057004185
    • 2003-08-27
    • 주식회사 쿠라레
    • 츠지요시히사야마나카마사요시이와사키히데하루
    • C07C37/16C07C39/06
    • C07C37/16C07C39/06
    • A process for the production of 4-alkylphenols, characterized by comprising the first step of reacting a 4-unsubstituted phenol with an alkyl alcohol or an alkyl ether in the presence of a synthetic zeolite at a temperature of 50 to 110°C, the second step of removing water contained in the liquid phase of the reaction mixture when an alkyl alcohol is used in the first step or an alcohol contained therein when an alkyl ether is used in the first step, and the third step of subjecting the resulting water- or alcohol-free reaction mixture to rearrangement at a temperature of 90 to 150°C in the presence of an acid catalyst. According to the process, 4-alkylphenols can be industrially advantageously produced with high selectivity and in high yield.
    • 一种生产4-烷基酚的方法,其特征在于包括在合成沸石存在下,在50〜110℃的温度下使4-未取代的苯酚与烷基醇或烷基醚反应的第一步, 在第一步骤中使用烷基醇时除去反应混合物液相中所含的水的步骤或在第一步中使用烷基醚时所含的醇的步骤,以及第三步骤, 无酸反应混合物在酸性催化剂存在下,在90至150℃的温度下进行重排。 根据该方法,4-烷基酚可以在工业上以高选择性和高产率有利地生产。