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    2.
    发明专利
    未知

    公开(公告)号：DE2937768A1

    公开(公告)日：1981-04-16

    申请号：DE2937768

    申请日：1979-09-19

    Applicant: DEGUSSA

    Inventor： KAEBISCH GERHARD DR ,  MALITIUS HORST ,  RAUPACH SIEGFRIED ,  TRUEBE RUDOLF ,  WITTMANN HANS

    IPC: C07C29/48 ,  C07C27/00 ,  C07C29/03 ,  C07C33/26 ,  C07C67/00 ,  C07C31/20

    Abstract: Styrene or styrene substituted in the aromatic nucleus or on the vinyl group with a methyl group or styrene having the vinyl group substituted by hydroxymethyl is reacted with less than 2 moles of formic acid and less than 2 moles of hydrogen peroxide per mole of styrene or substituted styrene to hydroxylate the double bond. The formic acid is employed at a concentration between 20 and 100 weight percent and the hydrogen peroxide is employed at a concentration of less than 50 weight %. The concentration of the hydrogen peroxide in the aqueous phase of the reaction mixture is held below 15 weight percent during the entire reaction. The corresponding diols or triols are formed directly from the olefins employed within reasonable reaction times in high yields.

    PROCESS FOR HYDROXYLATING SHORT-CHAIN ALIPHATIC MONO- OR DI-OLEFINS
    5.
    发明专利
    PROCESS FOR HYDROXYLATING SHORT-CHAIN ALIPHATIC MONO- OR DI-OLEFINS 未知

    公开(公告)号：CA1218385A

    公开(公告)日：1987-02-24

    申请号：CA360664

    申请日：1980-09-19

    Applicant: DEGUSSA

    Inventor： KAEBISCH GERHARD ,  MALITIUS HORST ,  RAUPACH SIEGFRIED ,  TRUEBE RUDOLF ,  WITTMANN HANS

    IPC: C07C27/00 ,  C07C29/03 ,  C07C31/18 ,  C07C31/20 ,  C07C31/22 ,  C07C31/42 ,  C07C67/00

    Abstract: A compound selected from 3-chloro-2-methyl-propene-1, straight-chain or branched monoolefins, which are either unsubstituted or substituted by 1 to 2 hydroxyl groups and contain 4 to 7 carbon atoms and have a terminal or internal double bond, straight-chain or branched monoolefins, which are unsubstituted or substituted by 1 to 2 hydroxyl groups and contain 8 to 12 carbon atoms and an internal double bond and straight-chain or branched diolefins containing 4 to 10 carbon atoms are reacted at a temperature between 30 and 80.degree.C with less than 2 moles of formic acid and less than 2 moles of hydrogen peroxide per mole of double bond to be hydroxylated. Formic acid is used in a concentration between 20 and 50 percent by weight and hydrogen peroxide in a concentration of less than 50 percent by weight. The concentration of the hydrogen peroxide in the aqueous phase of the reaction mixture is kept below 15 percent by weight during the entire reaction. From the monoolefins the corresponding diols and polyols are obtained directly in high yields within acceptable reaction times.

    PROCESS
    6.
    发明专利
    PROCESS 未知

    公开(公告)号：AU533937B2

    公开(公告)日：1983-12-22

    申请号：AU6025080

    申请日：1980-07-09

    Applicant: DEGUSSA

    Inventor： KABISCH GERHARD ,  MALITIUS HORST ,  RAUPACH SIEGFRIED ,  TRUBE RUDOLF ,  WITTMANN HANS

    IPC: C07C29/48 ,  C07C27/00 ,  C07C29/03 ,  C07C33/26 ,  C07C67/00

    Abstract: Styrene or styrene substituted in the aromatic nucleus or on the vinyl group with a methyl group or styrene having the vinyl group substituted by hydroxymethyl is reacted with less than 2 moles of formic acid and less than 2 moles of hydrogen peroxide per mole of styrene or substituted styrene to hydroxylate the double bond. The formic acid is employed at a concentration between 20 and 100 weight percent and the hydrogen peroxide is employed at a concentration of less than 50 weight %. The concentration of the hydrogen peroxide in the aqueous phase of the reaction mixture is held below 15 weight percent during the entire reaction. The corresponding diols or triols are formed directly from the olefins employed within reasonable reaction times in high yields.

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