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    PROCESS FOR THE PREPARATION OF TEREPHTHALIC ACID-MONOAMIDE DERIVATIVES
    4.
    发明专利
    PROCESS FOR THE PREPARATION OF TEREPHTHALIC ACID-MONOAMIDE DERIVATIVES 未知

    公开(公告)号：DE3369976D1

    公开(公告)日：1987-04-09

    申请号：DE3369976

    申请日：1983-11-15

    Applicant: HOECHST AG

    Inventor： RITSCHEL WERNER DR

    IPC: C07C20060101 ,  C07C102/06 ,  C07C103/76

    Abstract: An improved and simplified process for preparing terephthalic acid monoamide derivatives of the formula in which R denotes hydrogen, an alkaline earth metal or alkali metal cation or methyl, R1 denotes C8-C30-alkyl, preferably C12-C22-alkyl, and R2 denotes C1-C30-alkyl or, preferably hydrogen, in which dimethyl terephthalate is reacted with an amine of the formula HNR1R2 in methanol and in the presence of sodium methylate. The compounds thus obtained are used for gelling oils and organic solvents.

    5.
    发明专利
    未知

    公开(公告)号：DE3135832A1

    公开(公告)日：1983-03-24

    申请号：DE3135832

    申请日：1981-09-10

    Applicant: HOECHST AG

    Inventor： RITSCHEL WERNER DR ,  DIERY HELMUT DR ,  HILLE MARTIN DR

    IPC: C10G7/10 ,  C07C67/00 ,  C07C231/00 ,  C07C231/02 ,  C07C231/12 ,  C07C233/18 ,  C07C233/36 ,  C10G33/04 ,  C07C103/44 ,  C07C103/38 ,  C07C102/04 ,  C10M1/06 ,  C10M1/36

    Abstract: Bisamides of the formula wherein R denotes the alkyl skeleton of a dimerized fatty acid having 22 to 42, preferably 34, C atoms, R1 denotes hydrogen or a group of the formula -(CnH2n-X)a-Zv-R2, R2 denotes hydrogen or a group -COR3, R3 denotes C1-C22-, preferably C8-C22-alkyl, X denotes an oxygen atom or a group of the formula N-Bm, B denotes hydrogen, methyl, ethyl, benzyl or a group of the formula -Zv-R2, n denotes a number from 2 to 6, preferably 2 or 3, a denotes a number from 0 to 5, v denotes a number from 0 to 100, preferably 0 to 20, Z denotes a group of the formula -C2H4X(C3H6X)b or CH2-CHY O or CnH2n, b denotes a number from 0 to 5, preferably 0, 1 or 2, i denotes a number from 0 to 2(a+b)+2 and A denotes an anion, m denotes a number from 1 to 2 and Y denotes hydrogen, methyl or ethyl, a process for their preparation and their use as demulsifiers for crude oil emulsions.

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