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    METHOD FOR THE PRODUCTION OF TRIOXIME DERIVATIVES
    3.
    发明专利
    METHOD FOR THE PRODUCTION OF TRIOXIME DERIVATIVES 未知

    公开(公告)号：HU0301141A2

    公开(公告)日：2003-08-28

    申请号：HU0301141

    申请日：2001-07-04

    Applicant: BASF AG

    Inventor： HENNINGSEN MICHAEL ,  KIEFER MATTHIAS ,  KRAMER ANDREAS ,  SCHROEDER JOCHEN ,  SIEGEL WOLFGANG

    IPC: C07B61/00 ,  C07C249/06 ,  C07C249/08 ,  C07C251/40 ,  C07C251/58

    Abstract: The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R 1 and R 2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R 3 and R 4 are identical or different and each is alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl, by the following reaction steps in water without isolation of the intermediates: A) nitrosation of 1,3-diketones of the formula II to give monooximes of the formula III, B) oximation of III with hydroxylamine derivatives of the formula IV H 2 N-OR 3' IV in which R 3' is hydrogen or a group R 3 to give bisoximes of the formula V, C) alkylation of V with alkylating agents or acylation of V with acylating agents to give compounds of the formula VI and D) subsequent oximation of VI with hydroxylamine to give compounds of the formula I.

    4.
    发明专利
    未知

    公开(公告)号：PT941979E

    公开(公告)日：2002-11-29

    申请号：PT99104411

    申请日：1999-03-05

    Applicant: BASF AG

    Inventor： SIEGEL WOLFGANG ,  THERRE JORG ,  KIEFER MATTHIAS ,  PAHL MELANIE ,  AQUILA WERNER ,  SCHAFER-LUDERSSEN ULRICH

    IPC: C07C29/56 ,  C07C29/80 ,  C07C33/02 ,  C07C33/03

    Abstract: Continuous production of dimethyl vinyl carbinol (DMVC) comprises reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water under specified conditions. Continuous production of dimethyl vinyl carbinol (DMVC) by reaction of prenol with an aqueous solution of a protonic acid in the bottom or upper part of a rectification column while distilling off the DMVC as an azeotropic mixture with water is performed in such a way that (a) the amount of liquid two-phase mixture formed during the reaction is minimized, (b) the DMVC is distilled off with a reflux ratio of at least 2, and (c) the reaction volume (V in ml) and/or the amount of prenol added per hour (P in ml/hour) and/or the proton concentration in the reaction mixture (C in moles/liter) is such that VC/P = 0.001-1 h.mol/l.

    5.
    发明专利
    未知

    公开(公告)号：BRPI0608737A2

    公开(公告)日：2010-12-07

    申请号：BRPI0608737

    申请日：2006-02-23

    Applicant: BASF AG

    Inventor： IRWIN COLIN ,  KIEFER MATTHIAS ,  KORMANN CLAUDIUS

    IPC: C09K5/20 ,  C09K5/10 ,  C23F11/10

    Abstract: The present invention relates to antifreeze/anticorrosion concentrates comprising from 10 to 50% by weight, based on the total amount of the concentrate, of glycerol, to processes for preparing such concentrates from superconcentrates, to aqueous coolant compositions from these concentrates, and to their use, for example in internal combustion engines.

    PROCEDIMIENTO PARA LA OBTENCION DE DERIVADOS DE TRIOXIMA.
    8.
    发明专利
    PROCEDIMIENTO PARA LA OBTENCION DE DERIVADOS DE TRIOXIMA. 未知

    公开(公告)号：ES2252250T3

    公开(公告)日：2006-05-16

    申请号：ES01947442

    申请日：2001-07-04

    Applicant: BASF AG

    Inventor： KRAMER ANDREAS ,  KIEFER MATTHIAS ,  HENNINGSEN MICHAEL ,  SIEGEL WOLFGANG ,  SCHRODER JOCHEN

    IPC: C07B61/00 ,  C07C249/06 ,  C07C249/08 ,  C07C251/40 ,  C07C251/58 ,  C07C251/60 ,  C07C49/12

    Abstract: Procedimiento para la obtención de derivados de trioxima de la fórmula I, en la que los substituyentes R1 y R2 pueden ser iguales o diferentes y pueden significar, respectivamente, ciano, alquilo con 1 a 4 átomos de carbono, halógenoalquilo con 1 a 4 átomos de carbono y cicloalquilo con 3 a 6 átomos de carbono y R3 y R4 pueden ser iguales o diferentes y pueden significar, respectivamente, alquilo con 1 a 4 átomos de carbono, halógenoalquilo con 1 a 4 átomos de carbono, cicloalquilo con 3 a 6 átomos de carbono, alquilcarbonilo con 1 a 4 átomos de carbono o aril- alquilo con 1 a 4 átomos de carbono, mediante las siguientes etapas de reacción en agua sin aislamiento de los productos intermedios: A) nitrosación de 1, 3-dicetonas de la fórmula II para dar monooximas de la fórmula III, B) oximación de III con derivados de hidroxiamina de la fórmula IV H2N-OR3'' IV en la que R3'' significa hidrógeno o un grupo R3, o con sus sales de adición con ácidos, para dar bisoximas de la fórmula V, C) alquilación de V con agentes de alquilación o acilación de V con agentes de acilación para dar compuestos de la formula VI y D) a continuación oximación de VI con hidroxilamina para dar los compuestos de la formula I.

    9.
    发明专利
    未知

    公开(公告)号：BR0112167A

    公开(公告)日：2003-05-06

    申请号：BR0112167

    申请日：2001-07-04

    Applicant: BASF AG

    Inventor： KRAMER ANDREAS ,  KIEFER MATTHIAS ,  HENNINGSEN MICHAEL ,  SIEGEL WOLFGANG ,  DER JOCHEN SCHR

    IPC: C07B61/00 ,  C07C249/06 ,  C07C249/08 ,  C07C251/40 ,  C07C251/58 ,  C07C251/60 ,  C07C49/12

    Abstract: The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R 1 and R 2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R 3 and R 4 are identical or different and each is alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl, by the following reaction steps in water without isolation of the intermediates: A) nitrosation of 1,3-diketones of the formula II to give monooximes of the formula III, B) oximation of III with hydroxylamine derivatives of the formula IV H 2 N-OR 3' IV in which R 3' is hydrogen or a group R 3 to give bisoximes of the formula V, C) alkylation of V with alkylating agents or acylation of V with acylating agents to give compounds of the formula VI and D) subsequent oximation of VI with hydroxylamine to give compounds of the formula I.

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