PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE

    公开(公告)号:JPH11209334A

    公开(公告)日:1999-08-03

    申请号:JP31219598

    申请日:1998-11-02

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject high-purity compound simply, economically in a high yield from readily obtainable starting substances, by reacting calcium cyanamide with an alcohol and reacting the obtained isourea derivative with a primary or a secondary amine. SOLUTION: Calcium cyanamide is reacted with an alcohol of the formula, R -OH (R is a 1-20C alkyl) preferably in the presence of an inorganic acid at 0-25 deg.C to give an isourea derivative of formula I. Then, the compound of formula I is reacted with a primary or a secondary amine of formula II (R is H, a 1-20C alkyl or the like; R is a 1-20C alkyl, a 2-20C alkenyl or the like) preferably at 20-40 deg.C at pH 9-10 to give the objective compound of formula III. Preferably calcium cyanamide is economically used in the form of industrial lime nitrogen containing 30-95 wt.% of calcium cyanamide. Sarcosine sodium or potassium salt is preferable as the compound of formula II.

    Production of substituted alkanes
    2.
    发明授权
    Production of substituted alkanes 失效
    生产取代烷烃

    公开(公告)号:US3911004A

    公开(公告)日:1975-10-07

    申请号:US34640473

    申请日:1973-03-30

    Applicant: BASF AG

    CPC classification number: C07C309/00 C07C17/10 C07C19/01

    Abstract: Alkanes bearing chlorine atoms and/or sulfochloride groups as substituents are prepared by the reaction of alkanes with chlorine with or without sulfur dioxide in a specific throughput ratio and in a reactor inclined to the horizontal, the starting materials being passed cocurrent upwardly through the reaction zone. The products are pesticides, plasticizers, solvents and starting materials for the production of the same and also of fat-liquoring agents for leather, detergents, lubricants and synthetic resins.

    Abstract translation: 带有氯原子和/或磺酰氯基团的烷烃作为取代基通过烷烃与具有或不具有特定通量比的二氧化硫的氯反应并在倾斜于水平的反应器中反应来制备,原料通过向上并流通过反应区 。 产品是农药,增塑剂,溶剂和生产原料,也用于皮革,洗涤剂,润滑剂和合成树脂的油脂剂。

    PRODUCTION OF PRIMARY AMINE
    3.
    发明专利

    公开(公告)号:JPH10147555A

    公开(公告)日:1998-06-02

    申请号:JP21307797

    申请日:1997-08-07

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a primary amine, without forming any waste salt impossible to reuse and wastewater difficult to biodegrade by reacting a precursor compound for carbenium ion with a nitrile in the presence of a strong acid, and then neutralizing the effluent with ammonia, an amine or the like. SOLUTION: The method for producing this primary amine reacts a precursor compound for carbenium ion, shown by formula I or II (R , R , R , R and R are each H, an alkyl, cycloalkyl or the like; and X is H, OH, a halogen, COOR and OCOR where R is alkyl or aryl) or the like with a nitrile mixed with a strong acid and water to form a solution at -20 to 80 deg.C for 1 to 10h, where the mixed solution is added to the reaction system to have the strong acid/precursor molar ratio at (1.2-1.6):1, adds water to hydrolyze an excess nitrile, and neutralizes the effluent at 20 to 50 deg.C with ammonia or the like, to produce the objective product shown by formula III separated in the organic phase. It is extracted, as necessary, with an adequate organic solvent.

    PRODUCTION OF CYANOACETIC ACID ESTER

    公开(公告)号:JP2000143603A

    公开(公告)日:2000-05-26

    申请号:JP31254499

    申请日:1999-11-02

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To produce a cyanoacetic acid ester useful as an intermediate for producing an effective substance, an active substance such as caffeine, or a photoprotective substance advantageously on an industrial scale by reacting a corresponding monochloroacetic acid ester with hydrogen cyanide in the presence of a specific base. SOLUTION: A corresponding monochloroacetic acid ester is made to react with hydrogen cyanide in the presence of a basic compound (the amount of the base is commonly 50-300 mol.% based on the monochloroacetic acid ester) selected from a group consisting of tertiary amines (e.g. trialkylamine), salts of carbonic acid (e.g. an alkali metal carbonate), salts of a carbonic acid half ester) (e.g. an alkali metal alkylcarbonic acid salt), salts of a carboxylic acid (e.g. an alkali metal carboxylate), amidines (e.g. peralkylated amidine or a bicyclic amidine), guanidines (e.g. peralkylated guanidine) and aromatic N- heterocyclic compounds (e.g. pyridine) generally at -78 deg.C to 20 deg.C under 0.05-2 MPa for 10 min to 2 hr or more.

    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE

    公开(公告)号:JPH11209335A

    公开(公告)日:1999-08-03

    申请号:JP31219798

    申请日:1998-11-02

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject high-purity compound simply in a high yield by using readily obtainable starting raw materials, by reacting calcium cyanamide with a primary or a secondary aminocarboxylic acid. SOLUTION: Calcium cyanamide is reacted with a primary or a secondary aminocarboxylic acid alcohol of the formula I [R is H or a 1-20C alkyl; R is a (1-20C alkylene)-COOR , a (1-20C alkylene)-CONR R (R is H, a 3-8C cycloalkyl or the like; R and R are each H, a 6-18C aryl or the like) or the like], a primary or a secondary aminosulfonic acid or their derivative to give the objective compound of formula II. Preferably the reaction is carried out in water and/or an organic solvent mixable with water at 40-80 deg.C at pH 9-11. Preferably calcium cyanamide is economically used in the form of industrial lime nitrogen containing 30-95 wt.% of calcium cyanamide. Sarcosine sodium or potassium salt is preferable as the compound of formula I or its derivative.

    PREPARATION OF COPOLYMERS OF MONOETHYENICALLY UNSATURATED MONOCARBOXYLIC ACIDS AND DICARBOXYLIC ACIDS

    公开(公告)号:CA1243446A

    公开(公告)日:1988-10-18

    申请号:CA412285

    申请日:1982-09-27

    Applicant: BASF AG

    Abstract: In a process for the preparation of copolymers which contain monoethylenically unsaturated monocarboxylic acids and dicarboxylic acids as copolymerized monomer units, by copolymerizing the monocarboxylic acids with the dicarboxylic acids or, where appropriate, their inner anhydrides, in an aqueous medium in the presence of a water-soluble initiator, the improvement that a) from 10 to 60% by weight, based on the sum of the monomers, of a monoethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms, its alkali metal salt or, where appropriate, its anhydride, b) from 90 to 40% by weight of a monoethylenically unsaturated monocarboxylic acid of 3 to 10 carbon atoms or its alkali metal salt and c) from 0 to 20% by weight of another monoethylenically unsaturated monomer, which is free from carboxyl groups and is copolymerizable with a) and b) are copolymerized in an aqueous medium in the presence of from 0.5 to 5% by weight, based on monomers, of the watersoluble initiator by introducing the dicarboxylic acid, its salt or its anhydride into the aqueous medium, adding the monocarboxylic acid together with the initiator over from 3 to 10 hours, completing the reaction at 60 - 150.degree.C and, where appropriate, hydrolyzing the anhydride groups.

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