11.
    发明专利
    未知

    公开(公告)号:DK1296939T3

    公开(公告)日:2006-01-30

    申请号:DK01947442

    申请日:2001-07-04

    Applicant: BASF AG

    Abstract: The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R 1 and R 2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R 3 and R 4 are identical or different and each is alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl, by the following reaction steps in water without isolation of the intermediates: A) nitrosation of 1,3-diketones of the formula II to give monooximes of the formula III, B) oximation of III with hydroxylamine derivatives of the formula IV H 2 N-OR 3' IV in which R 3' is hydrogen or a group R 3 to give bisoximes of the formula V, C) alkylation of V with alkylating agents or acylation of V with acylating agents to give compounds of the formula VI and D) subsequent oximation of VI with hydroxylamine to give compounds of the formula I.

    17.
    发明专利
    未知

    公开(公告)号:AT363461T

    公开(公告)日:2007-06-15

    申请号:AT04763087

    申请日:2004-07-03

    Applicant: BASF AG

    Abstract: In the production of propargyl alcohol (I) by conversion of an aqueous formaldehyde solution containing acetylene in presence of a catalyst containing copper acetylide at 1-15 (preferably 3-7) bars and 70-120[deg]C without formation of a coherent gas phase, the aqueous formaldehyde solution contains an organic solvent for acetylene and the catalyst is arranged in a fluidized bed.

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