PREPARATION OF VINYLSILANES
    41.
    发明专利

    公开(公告)号:CA2353121A1

    公开(公告)日:2002-01-18

    申请号:CA2353121

    申请日:2001-07-16

    Applicant: BASF AG

    Abstract: In the process for the preparation of vinylsilanes by reacting acetylenic hydrocarbons with silanes which have at least one silicon-bonded hydrogen atom in the liquid phase in the presence of a catalyst, the silane is added to the liquid phase. In particular, the reaction is carried out at superatmospheric pressure, and the spent acetylenic hydrocarbon is replenished during the reaction while maintaining a pressure which is constant during the entire reaction.

    47.
    发明专利
    未知

    公开(公告)号:AT376989T

    公开(公告)日:2007-11-15

    申请号:AT04764836

    申请日:2004-09-04

    Applicant: BASF AG

    Abstract: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile and hydrogenating the phthalonitrile, which comprises contacting the vaporous product of the ammoxidation stage directly with a liquid organic solvent or with molten phthalonitrile (quench), partly or fully removing components having a boiling point lower than phthalonitrile (low boilers) from the resulting quench solution or suspension or phthalonitrile melt and, after the low boiler removal and before the hydrogenation, removing products having a boiling point higher than phthalonitrile (high boilers).

    49.
    发明专利
    未知

    公开(公告)号:DE50011586D1

    公开(公告)日:2005-12-15

    申请号:DE50011586

    申请日:2000-12-12

    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 compounds of the general formulae (Ia) and/or (Ib)where n is 1, 2 or 3 and R and R are independently C1- to C6-alkyl or C2- to C6-alkenyl, or together a butenyl unit.

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