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    Process for the selective preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives thereof
    44.
    发明授权
    Process for the selective preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives thereof 失效
    选择性制备2-羟基苯甲酸和4-羟基苯甲醛及其衍生物的方法

    公开(公告)号：US06245936B1

    公开(公告)日：2001-06-12

    申请号：US09284378

    申请日：1999-04-12

    申请人： Pascal Metivier ,  Christian Maliverney ,  Philippe Denis

    发明人： Pascal Metivier ,  Christian Maliverney ,  Philippe Denis

    IPC分类号： C07C5116

    CPC分类号： C07C45/38 ,  C07C51/255 ,  C07C47/565 ,  C07C65/05

    摘要： The present invention concerns a process for the preparation of a 2-hydroxybenzoic acid and of a 4-hydroxybenzaldehyde and derivatives thereof from a mixture of two phenolic compounds, one carrying a formyl or hydroxymethyl group in the 2 position, and the other carrying a formyl or hydroxymethyl group in the 4 position. The invention also concerns the preparation of a 4-hydroxybenzaldehyde from said mixture. The invention more particularly concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and of 3-ethoxy4-hydroxybenzaldehyde, respectively known as “vanillin” and ethylvanillin”. The process for the preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives thereof is characterised in that the formyl or hydroxymethyl group in the 2 position of compound (A) in a mixture of phenolic compounds, one (A) carrying a formyl or hydroxymethyl group in the 2 position, and the other (B) carrying a formyl or hydroxymethyl group in the 4 position, is selectively oxidised to a carboxy group and optionally a hydroxymethyl group of compound (B) in the 4 position is selectively oxidised to a formyl group, thus producing a mixture of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde.

    摘要翻译： 本发明涉及一种由两种酚类化合物的混合物制备2-羟基苯甲酸和4-羟基苯甲醛及其衍生物的方法，一种在2位上携带甲酰基或羟甲基，另一种带有甲酰基 或羟甲基在4位。 本发明还涉及从所述混合物制备4-羟基苯甲醛。 本发明更具体地涉及3-甲氧基-4-羟基苯甲醛和3-乙氧基-4-羟基苯甲醛的制备，分别称为“香草醛”和乙基香草醛“。制备2-羟基苯甲酸和4-羟基苯甲醛的方法和 其衍生物的特征在于化合物（A）的2位的甲酰基或羟甲基在酚类化合物的混合物中，一个（A）在2位上携带甲酰基或羟甲基，另一个（B）携带 4位的甲酰基或羟甲基被选择性地氧化成羧基，任选地将4位上的化合物（B）的羟甲基选择性氧化成甲酰基，从而产生2-羟基苯甲酸和 4-羟基苯甲醛。

    Process for the preparation of a substituted 4-hydroxybenzaldehyde
    45.
    发明授权
    Process for the preparation of a substituted 4-hydroxybenzaldehyde 失效
    制备取代的4-羟基苯甲醛的方法

    公开(公告)号：US5756853A

    公开(公告)日：1998-05-26

    申请号：US722210

    申请日：1996-10-16

    申请人： Pascal Metivier ,  Isabelle Jouve ,  Christian Maliverney

    发明人： Pascal Metivier ,  Isabelle Jouve ,  Christian Maliverney

    IPC分类号： B01J27/053 ,  C07B61/00 ,  C07C45/65 ,  C07C45/67 ,  C07C47/575 ,  C07C47/58 ,  C07C51/15 ,  C07C51/353 ,  C07C51/367 ,  C07C51/373 ,  C07C65/21

    CPC分类号： C07C51/15 ,  C07C45/676 ,  C07C51/367

    摘要： The subject of the present invention is a process for the preparation of a 4-hydroxybenzaldehyde carrying at least one substituent in the position ortho to the OH group. It more particularly relates to the preparation of 3-methoxy-4-hydroxybenzaldehyde and of 3-ethoxy-4-hydroxybenzaldehyde. The process for the preparation of a substituted 4-hydroxybenzaldlehyde, substituted at least in the 3 position by an alkoxy group, is characterized in that it comprises subjecting a substituted phenol compound, substituted at least in the 2 position by an alkoxy group and in which the 4 and 6 positions are free, to a first stage of carboxylation in the 6 position, then to a stage of hydroxymethylation in the 4 position, followed by a stage of oxidation of the hydroxymethyl group to a formyl group, and finally to a last decarboxylation stage.

    摘要翻译： PCT No.PCT / FR96 / 00241 Sec。 371日期1996年10月16日第 102（e）日期1996年10月16日PCT提交1996年2月14日PCT公布。 WO96 / 26175 PCT出版物 日本1996年8月29日本发明的主题是在OH基的邻位含有至少一个取代基的4-羟基苯甲醛的制备方法。 更具体地涉及3-甲氧基-4-羟基苯甲醛和3-乙氧基-4-羟基苯甲醛的制备。 制备至少在3位被烷氧基取代的取代的4-羟基苯甲醛的方法的特征在于它包括使至少在2位被烷氧基取代的取代酚化合物，其中 4位和6位是自由的，到第6位的羧化的第一阶段，然后到4位的羟甲基化阶段，随后是羟甲基氧化成甲酰基的阶段，最后到最后 脱羧阶段。

    Preparation of p-aminophenols
    46.
    发明授权
    Preparation of p-aminophenols 失效
    对氨基苯酚的制备

    公开(公告)号：US5288906A

    公开(公告)日：1994-02-22

    申请号：US24440

    申请日：1993-03-01

    申请人： Michel Gubelmann ,  Christian Maliverney

    发明人： Michel Gubelmann ,  Christian Maliverney

    IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C213/00 ,  C07C213/02 ,  C07C215/76 ,  C07C209/36

    CPC分类号： C07C213/00

    摘要： Optionally substituted p-aminophenol compounds, easily converted into the N-acylated derivatives thereof, are prepared by hydrogenating the corresponding nitrobenzene, in solution in a saturated aliphatic monocarboxylic acid, notably acetic acid, in the presence of an effective amount of a protonic acid.

    摘要翻译： 通过在有效量的质子酸存在下，在饱和脂肪族单羧酸（特别是乙酸）的溶液中氢化相应的硝基苯来制备易于转化为N-酰化衍生物的任选取代的对氨基苯酚化合物。

    METHOD FOR PREPARING CARBENE IN SOLUTION, NOVEL STABLE FORM OF CARBENE OBTAINED IN PARTICULAR BY MEANS OF SAID METHOD, AND USES THEREOF IN CATALYSIS
    50.
    发明申请
    METHOD FOR PREPARING CARBENE IN SOLUTION, NOVEL STABLE FORM OF CARBENE OBTAINED IN PARTICULAR BY MEANS OF SAID METHOD, AND USES THEREOF IN CATALYSIS 有权
    在溶液中制备碳的方法，特别是通过方法获得的碳酸盐的新型稳定形式及其在催化中的用途

    公开(公告)号：US20130158274A1

    公开(公告)日：2013-06-20

    申请号：US13520834

    申请日：2011-01-07

    申请人： Christian Maliverney ,  Laurent Saint-Jalmes ,  Sophie Gojon ,  Tsuyoshi Kato ,  Antoine J. Baceiredo

    发明人： Christian Maliverney ,  Laurent Saint-Jalmes ,  Sophie Gojon ,  Tsuyoshi Kato ,  Antoine J. Baceiredo

    IPC分类号： C08F4/80 ,  C08F4/00

    CPC分类号： C08F4/80 ,  C07D233/06 ,  C07D233/58 ,  C08F4/00

    摘要： The invention relates to a method for preparing carbene by means of deprotonation of a precursor salt using a strong base. A purpose of the invention is to enhance the synthesis of carbenes, i.e. to simplify same, to make said synthesis more economical and to obtain a liquid or solid, stable and pure form consitituting a catalytic system that is easy to store and use and that has a higher efficiency, higher yield and higher selectivity than carbene catalysts of the prior art. In order to do so, the method comprises deprotonation in a solvent including an alcohol. The invention also relates to an alcohol-containing solution and carbene, and to a solid that can be obtained from the solution, e.g. by means of sublimation.

    摘要翻译： 本发明涉及通过使用强碱将前体盐去质子化制备卡宾的方法。 本发明的目的是增强卡宾的合成，即为了简化合成，使得所述合成更经济，并获得液体或固体，稳定和纯的形式，其易于储存和使用的催化体系，并且具有 比现有技术的卡宾催化剂更高的效率，更高的产率和更高的选择性。 为了这样做，该方法包括在包括醇的溶剂中去质子化。 本发明还涉及含醇溶液和卡宾，以及可以从溶液获得的固体，例如， 通过升华。