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    37.
    发明专利
    未知

    公开(公告)号：DE4431212A1

    公开(公告)日：1996-03-07

    申请号：DE4431212

    申请日：1994-09-02

    Applicant: BASF AG

    Inventor： ANNEN ULRICH DR ,  SEELMANN-EGGEBERT HANS-PETER D ,  WIDDER RUDI DR ,  MUELLER REINHARD DR

    IPC: C07D295/14 ,  C07C253/00 ,  C07C253/08 ,  C07C255/24 ,  C07D207/06 ,  C07D207/325 ,  C07D209/08 ,  C07D211/14 ,  C07D233/61 ,  C07D241/04 ,  C07D265/38 ,  C07D295/15 ,  C07D295/037 ,  C07D521/00

    Abstract: The production of quaternary glycine nitriles (I) in which R and R may be the same or different and are an aliphatic, cycloaliphatic or araliphatic radical with 1 to 30 C atoms, whereby R and R may also form a saturated or unsaturated five or six-member heterocyclic ring together with the N atom to which they are bonded, which can also contain further hetero-atoms, be benzanellated and have alkyl side groups, while R may also be hydrogen; R is C1 to C4 alkyl or benzyl; R is hydrogen, C1 to C20 alkyl which may be interrupted by one or more non adjacent oxygen atoms, or a radical (a) in which R is a chemical bond or a C1 to C6 alkylene bridge and X is a counterion; by the reaction of amines (II) in which the variables R and R have the above meanings, with a monoaldehyde (IIIa) R -CHO or a dialdehyde (IIIb) OHC-R -CHO in which R has the above meaning and R is hydrogen or C1 to C20 alkyl and hydrocyanic acid or an alkaline metal cyanide in an aqueous medium, followed by quaternation with an alkylation agent (IV) R -X in which R has the above meaning and X is an initial group, by reacting the amines (II) with the aldehydes (III) and hydrocyanic acid or alkaline metal cyanide and quaternising in succession without isolating an intermediate product in an aqueous medium.

    39.
    发明专利
    未知

    公开(公告)号：DE3829829A1

    公开(公告)日：1990-03-22

    申请号：DE3829829

    申请日：1988-09-02

    Applicant: BASF AG

    Inventor： WIDDER RUDI DR ,  GOUSETIS CHARALAMPOS DR ,  PERNER JOHANNES DR ,  WOLF HELMUT ,  BOCHNITSCHEK WERNER DR ,  OFTRING ALFRED DR

    IPC: C07C227/12 ,  C07C229/22

    Abstract: Preparation of the trisodium salt of isoserine-N,N-diacetic acid (I) by reaction of acrylonitrile with aqueous hydrogen peroxide to give glycidamide (II) and further reaction of II with the disodium salt of iminodiacetic acid (III) to give I, by carrying out the process continuously and, in it, successively a) reacting together acrylonitrile and aqueous hydrogen peroxide at pH 7-8 and 30-60 DEG C, b) removing unreacted acrylonitrile by distillation, c) passing the reaction mixture over a solid hydrogen peroxide-decomposing catalyst, d) reacting the aqueous solution of II, obtained in this way, with III at pH 7-9 and 40-90 DEG C, e) reacting the resulting solution with a basic sodium compound at pH 9-14 and 60-95 DEG C, f) removing the ammonia which is produced by distillation and g) if desired, working up the aqueous solution of I, obtained in this way, in a manner known per se to give solid I.

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