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    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE
    3.
    发明专利
    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE 失效

    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

    Inventor： GREINDL THOMAS DR ,  SCHERR GUENTER DR ,  SCHNEIDER ROLF ,  MUNDINGER KLAUS DR

    IPC: C07C277/02 ,  C07C273/18 ,  C07C275/70 ,  C07C277/08 ,  C07C279/04 ,  C07C279/14 ,  C07C303/22 ,  C07C303/30 ,  C07C309/15 ,  C07C309/69 ,  C07C311/47 ,  C08G65/333 ,  C08G73/02

    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 PRIMARY AMINE
    4.
    发明专利
    PRODUCTION OF PRIMARY AMINE 失效

    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

    Inventor： MUNDINGER KLAUS DR ,  SCHNEIDER ROLF

    IPC: B01J27/02 ,  C07B61/00 ,  C07C209/00 ,  C07C209/58 ,  C07C211/02 ,  C07C211/16 ,  C07C211/43 ,  C07C215/06 ,  C07C215/20 ,  C07C215/26

    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
    5.
    发明专利
    PRODUCTION OF CYANOACETIC ACID ESTER 失效

    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

    Inventor： JULIUS MANFRED DR ,  SCHNEIDER ROLF ,  MUNDINGER KLAUS DR ,  FISCHER JAKOB

    IPC: B01J31/02 ,  C07B61/00 ,  C07C253/14 ,  C07C255/17 ,  C07C255/19

    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
    7.
    发明专利
    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE 失效

    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

    Inventor： GREINDL THOMAS DR ,  SCHERR GUENTER DR ,  SCHNEIDER ROLF ,  MUNDINGER KLAUS DR

    IPC: C07C277/02 ,  C07C277/08 ,  C07C279/14 ,  C07C303/22 ,  C07C303/30 ,  C07C303/40 ,  C07C309/15 ,  C07C309/69 ,  C07C311/47

    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.

    New bis:hydroxy ester(s) of di:carboxyalkyl-siloxane(s) - useful as poly:ol components for prodn. of polyurethane(s)
    10.
    发明专利
    New bis:hydroxy ester(s) of di:carboxyalkyl-siloxane(s) - useful as poly:ol components for prodn. of polyurethane(s) 未知

    公开(公告)号：DE4201053A1

    公开(公告)日：1993-07-22

    申请号：DE4201053

    申请日：1992-01-17

    Applicant: BASF AG

    Inventor： MUNDINGER KLAUS DR ,  KOEHLER ULRICH DR ,  NEUHAUSER HORST DR ,  SIEGEL HARDO DR

    IPC: C07F7/08 ,  C07F7/18 ,  C08G18/46 ,  C08G18/61 ,  C08G77/04

    Abstract: Bis-hydroxy esters of di-(carboxyalkyl)-siloxanes of formula (I) are new, In (I), R1-R4 are 1-8C hydrocarbyl; A is polyether-polyol residue; m is 1-20; and n is 1-10. Prodn. of (I) comprises reacting (a) a Si cpd. of formula X1-SiR1R2-(P-SiR1R2)m-1-X2 (II) with (b) a hydroxycarboxylic acid ester of formula R5-O-CO-CR3R4-CH2-OH (III), and (c) transesterifying the prod. (IV) with a polyether-polyol of formula Ho-A-OH (V). In formulae, X1, X2 are H, halo or 1-4C alkoxy; and R5 is 1-4C alkyl, or opt. substd. benzyl or Ph. USE/ADVANTAGE - Used for the prodn. of polyurethanes (PU). (I) are less viscous than the corresp. umodified polyether-polyols, and therefore give rise to fewer problems in handling and metering; the PU derived from (I) have partic. good processing and service properties; mould release agents are generally not required. Also claimed are PU foam and compact PU, obtd. from (I) and polyisocyanates, with and without blowing agents respectively; also claimed are moulded prods. based on such PU materials.

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