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    • 4. 发明授权
    • Method for the hydroxylation of phenols and phenol ethers
    • 苯酚和酚醚羟基化的方法
    • US09035106B2
    • 2015-05-19
    • US13984966
    • 2012-02-15
    • Laurent GarelJean-Christophe BigourauxStéphanie NormandPascal Pitiot
    • Laurent GarelJean-Christophe BigourauxStéphanie NormandPascal Pitiot
    • C07C37/60C07C37/08
    • C07C37/60Y02P20/582C07C39/08
    • The present invention relates to a method for the hydroxylation of phenols and phenol ethers by means of hydrogen peroxide. The invention specifically relates to a method for the hydroxylation of phenol by means of the hydrogen peroxide. The method of the invention for the hydroxylation of a phenol or phenol ether by means of reacting said phenol or phenol ether with the hydrogen peroxide in the presence of an acid catalyst is characterized in that it includes mixing a phenol or phenol ether with a hydrogen peroxide solution in a mixing device under conditions enabling the conversion rate of the hydrogen peroxide to be minimized, and in that said reaction mixture is then placed in a piston flow reactor where the reaction leading to the production of the hydroxylated material takes place, the acid catalyst being fed into the mixing device and/or into the piston flow reactor.
    • 本发明涉及通过过氧化氢使苯酚和苯酚醚羟基化的方法。 本发明具体涉及通过过氧化氢使苯酚羟基化的方法。 本发明通过在酸催化剂存在下使所述酚或酚醚与过氧化氢反应使苯酚或苯酚醚羟基化的方法的特征在于其包括将苯酚或苯酚醚与过氧化氢 在使得能够使过氧化氢的转化率最小化的条件下在混合装置中的溶液,然后将所述反应混合物置于活化流反应器中,在该活塞流反应器内进行产生羟基化物质的反应,酸催化剂 被送入混合装置和/或进入活塞流反应器。
    • 5. 发明申请
    • Method for hydroxylating phenols and phenol ethers
    • 苯酚和苯酚醚的羟基化方法
    • US20140073818A1
    • 2014-03-13
    • US14118082
    • 2012-05-15
    • Laurent GarelStephanie NormandPascal PitiotJean-Christophe Bigouraux
    • Laurent GarelStephanie NormandPascal PitiotJean-Christophe Bigouraux
    • C07C41/26C07C37/60
    • C07C41/26C07C37/60Y02P20/582C07C39/08
    • A method for hydroxylating phenols and phenol ethers using hydrogen peroxide and specifically, a method for hydroxylating phenol using hydrogen peroxide. The method for hydroxylating a phenolic substrate selected from a phenol or a phenol ether by reacting such phenolic substrate with hydrogen peroxide in the presence of an acid catalyst comprises the following steps, implemented consecutively or simultaneously: a first step consisting of mixing a phenolic substrate with a hydrogen peroxide solution under conditions in which the temperature is sufficient for the initial phenolic substrate to remain liquid and for minimizing the conversion rate of the hydrogen peroxide; a second step consisting of carrying out the phenolic substrate hydroxylation reaction under adiabatic conditions, the acid catalyst being added at the mixing stage and/or at the beginning of the hydroxylation reaction; and a third step, if necessary, consisting of recovering the hydroxylated product.
    • 使用过氧化氢使酚和酚醚羟基化的方法,具体地说,使用过氧化氢使苯酚羟基化的方法。 在酸催化剂存在下使这种酚类底物与过氧化氢反应,通过使酚类底物与过氧化氢反应来羟基化选自酚或酚醚的方法包括以下步骤:连续或同时实施:第一步,将酚类底物与 过氧化氢溶液,其中温度足以使初始酚类底物保持液体并使过氧化氢的转化率最小化; 第二步是在绝热条件下进行酚类底物羟基化反应,在混合阶段和/或在羟化反应开始时加入酸催化剂; 如果需要,第三步是回收羟基化产物。
    • 6. 发明申请
    • Method of preparation of an alkyne with an optically active hydroxyl group in the beta or gamma position of a triple bond and intermediates obtained
    • 在三键的β或γ位置制备具有光学活性羟基的炔烃的方法和获得的中间体
    • US20070004942A1
    • 2007-01-04
    • US11476196
    • 2006-06-28
    • Laurent GarelThierry Schlama
    • Laurent GarelThierry Schlama
    • C07C33/04C07F7/02
    • C07C29/36C07B2200/07C07C33/042C07C31/36
    • The present invention relates to a method of preparation of an alkyne with an optically active hydroxyl group in the β or γ position of a triple bond and intermediates obtained. The method of the invention for preparation of an alkyne with an optically active hydroxyl group in the β position of a triple bond is characterized in that it comprises the reaction, in the presence of a Lewis acid: of a compound of formula (IV): in which: R is a linear or branched alkyl group having from 1 to 6 carbon atoms. and of a compound of formula (V): R′—C≡C-M   (V) in which: R′ represents a hydrogen atom, a linear or branched alkyl group having from 1 to 8 carbon atoms, preferably a methyl group or a trialkylsilyl group. M represents a metal, preferably a metal of group (Ia) of the periodic table, preferably lithium. Another object of the invention comprises the production of an alkyne with an optically active hydroxyl group in the γ position of a triple bond by isomerization of an alkyne with an optically active hydroxyl group in the β position previously obtained.
    • 本发明涉及一种在三键的β或γ位具有光学活性羟基的炔烃的制备方法和中间体。 在三键的β位上制备具有光学活性羟基的炔烃的本发明的方法的特征在于其包含在路易斯酸存在下的反应:式(Ⅳ)化合物: 其中:R为具有1至6个碳原子的直链或支链烷基。 和式(V)化合物:<?in-line-formula description =“In-line Formulas”end =“lead”?> R'-C≡CM(V)<?in-line-formula description = “直链式”末端=“尾”→其中:R'表示氢原子,具有1至8个碳原子的直链或支链烷基,优选甲基或三烷基甲硅烷基。 M表示金属,优选元素周期表(Ia)族的金属,优选锂。 本发明的另一个目的是通过在先前获得的β位上通过异构化具有光学活性羟基的炔异构化在三键的γ位置制备具有光学活性羟基的炔。
    • 9. 发明授权
    • Process for the hydroxylation of phenols and of phenol ethers
    • 苯酚和酚醚的羟基化方法
    • US08791308B2
    • 2014-07-29
    • US13259860
    • 2010-03-30
    • Laurent Garel
    • Laurent Garel
    • C07C37/08
    • C07C37/60C07C39/08C07C39/10
    • A process for the hydroxylation of phenols and of phenol ethers by hydrogen peroxide is described. More particularly a process for the hydroxylation of phenol by hydrogen peroxide is described. The described process can include hydroxylation of a phenol or of a phenol ether having at least one hydrogen atom at the ortho and para position of the hydroxyl group or of the ether group, by reaction of said phenol or phenol ether, with hydrogen peroxide, in the presence of an acid catalyst, wherein the reaction is carried out in the presence of an effective amount of a catalyst which is a mixture of at least two strong acids and wherein one of the acids is chosen from strong protonic acids and the other acid is chosen from superacids.
    • 描述了通过过氧化氢使苯酚和酚醚羟基化的方法。 更具体地描述了一种通过过氧化氢使苯酚羟基化的方法。 所描述的方法可以包括通过所述酚或苯酚醚与过氧化氢的反应,在羟基或醚基的邻位和对位具有至少一个氢原子的酚或酚醚的羟基化, 酸催化剂的存在,其中反应在有效量的催化剂存在下进行,催化剂是至少两种强酸的混合物,其中一种酸选自强质子酸,另一种酸是 选自超酸