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    • 4. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON CARBONYLVERBINDUNGEN
    • 用于生产羰基
    • EP1064246A1
    • 2001-01-03
    • EP99939843.1
    • 1999-02-25
    • BASF AKTIENGESELLSCHAFT
    • DEMUTH, DirkFETZER, ThomasPRATSCH, VolkerWENDRICH, ThomasMENIG, HelmuthWAMBACH, LudwigHARTH, Klaus
    • C07C45/38C07C45/39C07C47/127C07C47/04
    • C07C45/39C07C45/38C07C47/04C07C47/127
    • The invention relates to a method for producing carbonyl compounds of formula (I), wherein R1 is a hydrogen atom or an alkyl radical with 1 to 3 C-atoms and R2 is a hydrogen atom, a C¿2?-C4-alkenyl radical which can be unsubstituted or substituted one to three times with C1-C3-alkyl or a radical of formula (II), wherein R?3¿ is a hydrogen atom or an oxygen atom together with R4, R4 is the radical OR6 or an oxygen atom together with R3, R5 is a hydrogen atom, an alkyl radical with 1 to 8 C-atoms, a C¿2?-C4-alkenyl radical which can be unsubstituted or substituted one to three times with C1-C3-alkyl or a cyclohexyl or cyclopentyl radical and R?6¿ is an alkyl radical with 1 to 4 C-atoms, a cyclohexyl or cyclopentyl radical or a radical of formula -CH¿2?-CHO or -CH2-CH2-O-CH2-CHO by gas phase oxidation of methanol or alcohols of formula (III), wherein R?1 and R5¿ have the meaning given above and R7 is a hydrogen atom or a radical OR?8 and R8¿ is a hydrogen atom, an alkyl radical with 1 to 4 C-atoms, a cyclohexyl or cyclopentyl radical or a radical of formula -CH¿2?-CH2-OH or -CH2-CH2-O-CH2-OH with an oxygen-containing gas in the presence of catalysts containing copper and/or silver and optionally, a phosphor compound which is volatile in the reaction conditions, the quantity of phosphor (calculated as P) being up to 20 ppm in relation to the quantity in weight of alcohol used. The inventive method is characterised in that it uses a catalyst system consisting of one catalyst which is essentially phosphor-free and at least one catalyst containing phosphor-containing copper and/or silver.