Method for producing aromatic alcohols, especially phenol
    2.
    发明授权
    Method for producing aromatic alcohols, especially phenol 失效
    制备芳香醇,特别是苯酚的方法

    公开(公告)号:US06720462B2

    公开(公告)日:2004-04-13

    申请号:US10239185

    申请日:2002-09-26

    IPC分类号: C07C3708

    摘要: The invention relates to a process for preparing phenol derivatives by catalytic oxidation of an aromatic hydrocarbon to the hydroperoxide and subsequent cleavage of the hydroperoxide to give the phenol derivative and a ketone, wherein a compound of the formula I where R1, R2=H, aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, in each case having from 1 to 20 carbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, where R1 and R2 are identical or different radicals or R1 and R2 may be joined to one another via a covalent bond, and X, Z=C, S, CH2 Y=O, OH k=0, 1, 2 l=0, 1, 2 m=1-3; is used as oxidation catalyst in the presence of a free-radical initiator, where the molar ratio of the catalyst to the aromatic hydrocarbon is less than 10 mol %.

    摘要翻译: 本发明涉及一种通过将芳族烃催化氧化成氢过氧化物并随后切断氢过氧化物得到酚衍生物和酮的方法,其中式I其中R 1,R 2, 在每种情况下具有1至20个碳原子的SO 3 H,NH 2,OH,F,Cl,Br,I和/或NO 2,其中R'为H,脂族或芳族烷氧基,羧基,烷氧基羰基或烃基, 1>和R 2是相同或不同的基团,或者R 1和R 2可以通过共价键彼此连接,X,Z = C,S,CH 2 Y = O,OH k = 0,1 ,2l = 0,1,2m = 1-3;在自由基引发剂存在下用作氧化催化剂,其中催化剂与芳烃的摩尔比小于10mol%。