PROCESS FOR THE PREPARATION OF AMINOARYL-BETA- SULFATOETHYLSULFONE COMPOUNDS

    公开(公告)号:CA1321600C

    公开(公告)日:1993-08-24

    申请号:CA585419

    申请日:1988-12-09

    Applicant: HOECHST AG

    Inventor: RUPP WALTER

    Abstract: HOE 87/F 370K A process for the preparation of aminoaryl-.beta.-sulfatoethyl-sulfone compounds Aminoaryl-.beta.-sulfatoethylsulfone compounds, such as, for example 4-(.beta.-sulfatoethylsulfonyl)-aniline, can be prepared in a quick and easy manner from their corresponding .beta.-hydroxyethylsulfone compounds by sulfation by spraying a solution or suspension or paste of this aminoaryl-.beta.-hydroxyethylsulfone compound or the acylamino compound thereof in sulfuric acid or aqueous sulfuric acid into a hot inert gas stream of a convection dryer. In this procedure, the drying, esterification reaction and the hydrolysis of any acylamino group present takes place synchronously. The sulfato compound is preferably obtained in the form of granules.

    A PROCESS FOR THE PREPARATION OF AMINOARYL-SULFATOETHYL-SULFONE COMPOUNDS

    公开(公告)号:IN172051B

    公开(公告)日:1993-03-27

    申请号:IN967CA1988

    申请日:1988-11-24

    Applicant: HOECHST AG

    Inventor: RUPP WALTER

    Abstract: Aminoaryl beta -sulfatoethyl sulfone compounds, such as, for example 4-( beta -sulfatoethylsulfonyl)-aniline, can be prepared in a quick and easy manner from their corresponding beta -hydroxyethyl sulfone compounds by sulfation by spraying a solution or suspension or paste of this aminoaryl beta -hydroxyethyl sulfone compound or the acylamino compound thereof in sulfuric acid or aqueous sulfuric acid into a hot inert gas stream of a convection dryer. In this procedure, the drying, esterification reaction and the hydrolysis of any acylamino group present takes place synchronously. The sulfato compound is preferably obtained in the form of granules.

    25.
    发明专利
    未知

    公开(公告)号:NO874426D0

    公开(公告)日:1987-10-23

    申请号:NO874426

    申请日:1987-10-23

    Applicant: HOECHST AG

    Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.

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