METHOD FOR PRODUCING LONG-CHAIN GLYCINE-N,N-DIACETIC ACID DERIVATIVES
    2.
    发明申请
    METHOD FOR PRODUCING LONG-CHAIN GLYCINE-N,N-DIACETIC ACID DERIVATIVES 审中-公开
    用于生产长链甘氨酸-N,N-二乙酸衍生物

    公开(公告)号:WO9910314A3

    公开(公告)日:1999-07-01

    申请号:PCT/EP9805220

    申请日:1998-08-17

    CPC classification number: C07C229/08 C07C229/16 C07C253/00 C07C255/25

    Abstract: The invention relates to a method for producing compounds of general formula (IIb), wherein R represents C6-C30 alkyl or C6-C30 alkenyl which can also support up to 5 hydroxyl groups, formyl groups, C1-C4 alkoxy groups, phenoxy groups or C1-C4 alkoxycarbonyl groups as substituents and which can be interrupted by up to 5 non-adjacent oxygen atoms, or alkoxylate groupings of formula -(CH2)k-O-(A O)m-(A O)n - Y, wherein A and A represent 1,2 alkylene groups with 2 to 4 C-atoms, Y represents hydrogen, C1-C12 alkyl, phenyl, or C1-C4 alkoxycarbonyl, k represents the number 1, 2 or 3 and m and n each represent numbers from 0 to 50, the sum of m and n being at least 4, independently of each other. According to the inventive method, iminodiacetonitrile is reacted with aldehydes of general formula R-CHO and HCN or alkali cyanides. The method is carried out a) without using an organic solvent and in the presence of a Lewis or Bronsted acid, or b) with or without an organic solvent and in the presence of an emulsifier, or c) with or without an organic solvent and at a pressure of 1 to 40 bar.

    Abstract translation: 在对通式(IIb)的化合物的制备方法,其中R是C6至C30的烷基或C6至C30链烯基,其还携带作为取代基的最多5个羟基,甲酰基,C1至C4烷氧基,苯氧基或C1 - 承载一个至C4烷氧基羰基和可被最多5个不相邻的氧原子,或下式的烷氧基化物基团被中断 - (CH 2)CO(A <1> O)间 - (甲<2> O)N - ÿ 是,表示其中A <1>和A <2>独立地表示1,2-亚烷基基团的碳原子数为2〜4,Y是氢,C 1至C 12表示烷基,苯基或C1-C4烷氧羰基并且k 数字1,2或3,且m和n各自为从0到50,其中m的+ n之和必须至少是4,亚氨基二乙腈与通式R-CHO的醛和HCN或碱金属氰化物反应,则 方法a),而不使用有机溶剂的和在路易斯存在 或布朗斯台德酸,或者b))的使用或不使用有机溶剂的和在1至40巴,使用或不使用有机溶剂的和在乳化剂,或c的存在的范围内的压力下进行。

    3.
    发明专利
    未知

    公开(公告)号:BRPI0611122A2

    公开(公告)日:2010-11-09

    申请号:BRPI0611122

    申请日:2006-05-02

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

    5.
    发明专利
    未知

    公开(公告)号:ES2198748T3

    公开(公告)日:2004-02-01

    申请号:ES98945254

    申请日:1998-08-17

    Applicant: BASF AG

    Abstract: A process for preparing compounds of the formula IIb where R is C6-C30-alkyl or C6-C30-alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1-C4-alkoxy groups, phenoxy groups or C1-C4-alkoxycarbonyl groups as substituents and may be interrupted by upto 5 nonadjacent oxygen atoms, or alkoxylate groups of the formula -(CH2)k-O-(A1O)m-(A2O)n-Y where A1 and A2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C1-C12-alkyl, phenyl or C1-C4-alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each numbers from 0 to 50, and the total of m+n must be at least 4,by reacting iminodiacetonitrile with aldehydes of the formula R-CHO and HCN or alkali metal cyanides, the process being carried outa) in the absence of an organic solvent and in the presence of a Lewis or Brönsted acid, orb) in the presence or absence of an organic solvent and in the presence of an emulsifier, orc) in the presence or absence of an organic solvent and under a pressure in the range from 1 to 40 bar.

    IMPROVED NEUTRALIZATION OF ISOPHORONE NITRILE SYNTHESIS PRODUCTS

    公开(公告)号:AU2003290055A1

    公开(公告)日:2004-07-14

    申请号:AU2003290055

    申请日:2003-12-16

    Applicant: BASF AG

    Abstract: The present invention relates to a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst to obtain a crude isophoronenitrile product, and subsequently distilling the crude isophoronenitrile product, with the addition before distillation of at least one specific sulfonic acid or specific carboxylic acid. In addition, the present invention relates to the use of a specific sulfonic acid or of a specific carboxylic acid as a neutralizing agent before distillation of a crude isophoronenitrile product which has been obtained by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst, in order to avoid precipitates in the neutralization of the base used as a catalyst with an acid.

    8.
    发明专利
    未知

    公开(公告)号:DE10259708A1

    公开(公告)日:2004-07-08

    申请号:DE10259708

    申请日:2002-12-19

    Applicant: BASF AG

    Abstract: The present invention relates to a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst to obtain a crude isophoronenitrile product, and subsequently distilling the crude isophoronenitrile product, with the addition before distillation of at least one specific sulfonic acid or specific carboxylic acid. In addition, the present invention relates to the use of a specific sulfonic acid or of a specific carboxylic acid as a neutralizing agent before distillation of a crude isophoronenitrile product which has been obtained by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst, in order to avoid precipitates in the neutralization of the base used as a catalyst with an acid.

    9.
    发明专利
    未知

    公开(公告)号:DE102005021055A1

    公开(公告)日:2006-11-09

    申请号:DE102005021055

    申请日:2005-05-06

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

    NEUTRALIZACION MEJORADA DE PRODUCTOS DE SINTESIS DE NITRILO DE ISOFORONA.

    公开(公告)号:MXPA05006021A

    公开(公告)日:2006-02-10

    申请号:MXPA05006021

    申请日:2003-12-16

    Applicant: BASF AG

    Inventor: BRAUN GEROLD

    Abstract: La invencion se refiere a un metodo para producir 3-ciano-3,5,5-trimetilciclohexanona (nitrilo de isoforona) al hacer reaccionar isoforona con cianuro de hidrogeno en presencia de una base como un catalizador. Un acido sulfonico especial o un acido carboxilico especial se agrega al producto de nitrilo de isoforona crudo resultante el cual es destilado posteriormente. La invencion se refiere ademas al uso de un acido sulfonico especial o un acido carboxilico especial como un agente de neutralizacion antes de la destilacion de un producto de nitrilo de isoforona crudo que se obtiene al hacer reaccionar isoforona con cianuro de hidrogeno en presencia de una base como un catalizador a fin de evitar precipitaciones durante la neutralizacion de la base utilizada como un catalizador con acido.

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