Process for the preparation of acyloxybenzenesulphonates

    公开(公告)号:DE3530101A1

    公开(公告)日:1987-02-26

    申请号:DE3530101

    申请日:1985-08-23

    Applicant: HOECHST AG

    Abstract: A process is described for the preparation of acyloxybenzenesulphonates which are optionally substituted on the benzene ring. Liquid acyloxybenzene which is optionally substituted on the benzene ring is brought into contact with a gas mixture containing 1 to 7% by volume of SO3 at 20 to 200 DEG C. When 1 mol of the acyloxybenzene which is optionally substituted on the benzene ring has taken up 0.9 to 1.3 mol of SO3, SO3-feeding is stopped, the liquid is held at a temperature of 20 to 70 DEG C for 5 to 180 minutes and then neutralised. In this manner, acyloxybenzenesulphonates which is optionally substituted on the benzene ring can be prepared in good quality and good yield without solvents and without it being necessary to remove troublesome reaction products.

    8.
    发明专利
    未知

    公开(公告)号:DE3860374D1

    公开(公告)日:1990-09-06

    申请号:DE3860374

    申请日:1988-02-17

    Applicant: HOECHST AG

    Abstract: 1. A process for the preparation fo surface-active acyloxyalkanesulfonates of the formula see diagramm : EP0280165,P4,F1 in which R denotes C7 -C21 -alkyl or C7 -C21 -alkenyl, A denotes C2 -C4 -alkylene and M denotes an alkali metal or alkaline earth metal atom, which comprises reacting, in the presense of a carboxylic acid, carboxylic acid chlorides of the formula R-COCl in which R has the meaning indicated above with a hydroxyalkanesulfonate of the formula HO-A-SO3 M in which A is C2 -C4 -alkylene and is an alkali metal or alkaline earth metal.

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