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    PRODUCTION OF SUBSTITUTED sigma-TRIAZINES
    113.
    发明专利
    PRODUCTION OF SUBSTITUTED sigma-TRIAZINES 未知

    公开(公告)号：GB1299152A

    公开(公告)日：1972-12-06

    申请号：GB1878671

    申请日：1971-06-03

    Applicant: DEGUSSA

    Inventor： KLEEMANN AXEL ,  SCHREYER GERD ,  SCHWARZE WERNER ,  WEIGERT WOLFGANG

    IPC: C07D20060101

    Abstract: 1299152 Amino-s-triazines DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 3 June 1971 [4 June 1970] 18786/71 Heading C2C Amino-s-triazines of general formula in which X represents a methyl mercapto group or -NR 5 R 6 , and R 1 -R 6 (which may be the same or different) each represent H or a C 1-6 linear or branched alkyl group which can also be substituted one or more times by -OR groups in which R represents a linear or branched C 1-4 alkyl radical, are made by converting at least one methylmercapto group in an s-triazine compound of formula in which Y and Z each represent a methyl mercapto group, or Y represents the group -NR 1 R 2 and Z represents -NR 3 R 4 , to an amino or substituted amino group as defined above in connection with Formula (I), by reaction at elevated temperature with ammonia or the amine from which the corresponding substituted amino group is derived.

    114.
    发明专利
    未知

    公开(公告)号：FI87768B

    公开(公告)日：1992-11-13

    申请号：FI883935

    申请日：1988-08-25

    Applicant: DEGUSSA

    Inventor： HUTHMACHER KLAUS ,  KLEEMANN AXEL ,  BETHGE HORST ,  BRAUN ROLF

    IPC: C07C67/00 ,  C07C239/00 ,  C07C277/02 ,  C07C277/08 ,  C07C279/28

    Abstract: In an improved process for the preparation of 1,6-di(N -cyano- N -guanidino)hexane from alkali metal dicyanamide and a hexamethylenediammonium salt in alcoholic solution or suspension, the reaction is carried out in the presence of a limited amount of water and a catalytic amount of a base, preferably a tertiary amine and the pH of the reaction mixture is 8 to 10 at the beginning of the reaction. After the reaction is complete, water is added to the reaction mixture in the heat, above 80 DEG C, and the coarse-crystalline product formed is separated off from the liquid phase. … Preferably, sodium dicyanamide and hexamethylenediamine dihydrochloride, preferably formed in situ from aqueous 1,6-diaminohexane and aqueous hydrochloric acid, are reacted in n-butanol in the presence of 0.1 to 20% by weight of water, relative to the solvent including water, at a pH of 9-9.5. … 1,6-di(N -cyano-N -guanidino)hexane is obtained in a high yield (85-96%) and in high purity (95-97%) and with a substantially increased space-time yield.

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