87.
    发明专利
    未知

    公开(公告)号:ES2204527T3

    公开(公告)日:2004-05-01

    申请号:ES00909260

    申请日:2000-02-28

    Applicant: BASF AG

    Abstract: Preparation of cyclic, alpha,beta-unsaturated ketones of formula II by dehydrogenation of cyclic ketones which conform to formula Iin which n denotes an integer from 1 to 10, and which may be substituted, at elevated temperature in the presence of catalysts in the vapor phase, wherein the reaction is carried out in the absence of oxygen or in the presence of less than 0.5 mol of oxygen per mol of compound I at temperatures ranging from 250° to 600° C. and using catalysts having a surface area (BET) of more than 0.5 m2/g.

    88.
    发明专利
    未知

    公开(公告)号:AT261940T

    公开(公告)日:2004-04-15

    申请号:AT00981362

    申请日:2000-12-11

    Applicant: BASF AG

    Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst diols of the general formula (I)where Xis branched or unbranched alkylene selected from the group consisting ofwhere R1 to R6 are independently hydrogen or C1- to C4-alkyl;orbranched or unbranched cyclic alkylene of 3 to 14 carbon atoms including 3 to 12 ring carbon atoms,their monoalkenyl ethers, their dialkenyl ethers or mixtures thereof.

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