Procédé et dispositif pour la fabrication de complexes organometalliques en poudre
    2.
    发明公开
    Procédé et dispositif pour la fabrication de complexes organometalliques en poudre 有权
    粉末形式的Verfahren und Vorrichtung zur Herstellung von Organometallische Komplexe

    公开(公告)号:EP2161075A1

    公开(公告)日:2010-03-10

    申请号:EP09167939.9

    申请日:2009-08-14

    摘要: Selon l'invention, on réalise des poudres à faible hygroscopicité par granulation en lit fluidisé (140) d'une solution aqueuse (1). On obtient un composé formé de grains cristallins, dont le taux d'humidité est défini et stable. L'invention s'applique notamment à des complexes organométalliques de la glycine avec un métal.

    摘要翻译: 制备粉末形式的结晶有机金属络合物包括:制备有机金属络合物的水溶液; 通过气流(30)在流化床(7)中喷雾造粒和干燥溶液; 并且当晶粒达到大于80微米的尺寸和小于20重量%的湿度时,从流化床中提取粉末颗粒。 包括以下的独立权利要求:(1)用于实施该方法的装置,该装置包括混合器(50)以及用于在合适温度下产生均相有机金属络合物水溶液的加热和温度调节装置,用于在流化床中喷雾的系统 (7),具有用于在外壳(10)中产生空气流(30)的上升悬浮物的外壳(10)和装置(8),以及用于接收来自混合器的有机金属络合物水溶液流的装置 (50),并且用于在所述外壳中喷雾,用于从所述流化床中提取尺寸大于80微米和湿度小于20重量%的粉末颗粒的提取装置; 和(2)通过该方法获得的粉末形式的结晶有机金属配合物,其中粉末颗粒的尺寸大于80微米。

    METHOD OF SEPARATELY COLLECTING OPTICALLY ACTIVE AMINO ACID AMIDE AND OPTICALLY ACTIVE AMINO ACID
    3.
    发明公开
    METHOD OF SEPARATELY COLLECTING OPTICALLY ACTIVE AMINO ACID AMIDE AND OPTICALLY ACTIVE AMINO ACID 有权
    PROCESS FOR作者旋光的氨基酸酰胺单独收集和光学活性氨基

    公开(公告)号:EP1741698A4

    公开(公告)日:2007-11-28

    申请号:EP05734685

    申请日:2005-04-22

    摘要: The present invention is a method for separately collecting an optically active amino acid amide and an optically active amino acid from an aqueous solution containing the optically active amino acid amide and the optically active amino acid together with at least one member selected from the group consisting of an acid, a base and a salt: comprising a neutralization step of neutralizing an acid or a base when the aqueous solution contains the acid or the base; a desalting step of removing a salt contained in the aqueous solution and/or formed in the neutralization step; and a step of collecting the optically active amino acid amide and the optically active amino acid separately from the aqueous solution which has been desalted in the desalting step, by a process which takes advantage of a difference in solubility between the two components in an organic solvent. The desalting step is preferably performed by an electrodialysis process optionally in the state where ammonia is added to the aqueous solution. According to the present invention, an optically active amino acid amide and an optically active amino acid, which are important as intermediates in the production of pharmaceuticals, agricultural chemicals, and various industrial chemicals, can be separately collected with high efficiency by use of an organic solvent.

    METHOD OF OBTAINING CYCLIC AMINO ACIDS
    8.
    发明授权
    METHOD OF OBTAINING CYCLIC AMINO ACIDS 有权
    VERFAHREN ZUR GEWINNUNG CYCLISCHERAMINOSÄUREN

    公开(公告)号:EP1820794B1

    公开(公告)日:2011-01-05

    申请号:EP05778843.2

    申请日:2005-07-14

    申请人: Menadiona , SL

    摘要: The invention relates to a method of obtaining substantially-non-salified cyclic amino acids having formula (I), wherein n is a whole number selected from 2, 3 and 4 and, in particular, gabapentin (compound having formula (I) with n = 3), with a high degree of purity. The inventive method comprises a step involving the electrolysis of a solution containing an addition salt of the cyclic amino acid with a mineral acid, which serves to eliminate the anion from the mineral acid for concentrations of no more than 3 ppm.

    摘要翻译: 本发明涉及一种获得基本上以非盐化形式的式(I)的环状氨基酸的方法,其中n为选自2,3和4的整数,特别是加巴喷丁(式(I)化合物),其中n = 3),纯度高。 该方法包括将环状氨基酸的加成盐与无机酸的溶液的电解步骤,通过其将无机酸阴离子除去,其含量可达到不大于3ppm的含量。

    VERFAHREN ZUR HERSTELLUNG VON 2-(4-N, N-DIALKYLAMINO-2-HYDROXYBENZOYL)BENZOES UREESTERN
    9.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON 2-(4-N, N-DIALKYLAMINO-2-HYDROXYBENZOYL)BENZOES UREESTERN 有权
    用于生产2-(4-N,N-二烷基氨基-2-羟基苯甲酰)苯甲酸UREESTERN

    公开(公告)号:EP1506159B1

    公开(公告)日:2007-09-19

    申请号:EP03720564.8

    申请日:2003-05-12

    IPC分类号: C07C227/38 C07C229/52

    CPC分类号: C07C227/38 C07C229/52

    摘要: The invention relates to a method for producing 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoates of formula (I), in which the substituents R to R , independently of one another, are defined as cited in the description. Said substances are produced as follows: I. 3-N,N-dialkylaminophenol of formula (II) is reacted with phthalic anhydride of formula (III) to obtain 2-(4-N,N-dialkylamino-2-hydroxybenzoyl) benzoic acid of formula (IV) and II. said 2-(4-N,N-dialkylamino-2-hydroxybenzoyl) benzoic acid of formula (IV) that has been formed in stage I. is esterified by means of a C1-C12 alcohol or a cyclic C3-C10 alcohol in the presence of an acidic catalyst to obtain 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoate of formula (I). The method is characterised in that the ester of formula (I) that has been formed is purified in an additional stage III by treatment with an adsorbent and/or by distillation.

    HIGHLY CONCENTRATED AQUEOUS SOLUTIONS OF N,N-DIALKYLGLYCINES AND PROCESS FOR PREPARATION THEREOF
    10.
    发明公开
    HIGHLY CONCENTRATED AQUEOUS SOLUTIONS OF N,N-DIALKYLGLYCINES AND PROCESS FOR PREPARATION THEREOF 有权
    N,N-二紫藤方法具有较高的浓缩水溶液FOR THEIR

    公开(公告)号:EP1435351A4

    公开(公告)日:2006-05-24

    申请号:EP02775289

    申请日:2002-10-03

    CPC分类号: C07C227/18 C07C229/12

    摘要: The invention aims at providing highly concentrated aqueous solutions of N,N-dialkylglycines which have high economical advantage and are easily handleable and favorably usable in subsequent organic chemical reactions and a process for the preparation thereof. A highly concentrated aqueous solution of an N,N-dialkylglycine which contains 30 to 80 % by mass of an N,N-dialkylglycine and 0.3 to 3 % by mass of an alkali metal salt of a mineral acid can be prepared from an aqueous solution of an alkali metal salt of an N,N-dialkylglycine by conducting (i) the step of neutralizing an aqueous solution of an alkali metal salt of an N,N-dialkylglycine with a mineral acid, (ii) the step of removing water from the aqueous solution obtained in the above step to thereby concentrate the solution, and (iii) the step of conducting solid-liquid separation between an N,N-dialkylglycine solution and an alkali metal salt of the mineral acid which is precipitated from a slurry of the salt.