公开(公告)号：DE59909810D1

公开(公告)日：2004-07-29

申请号：DE59909810

申请日：1999-02-25

Applicant: BASF AG

Inventor： DEMUTH DIRK ,  FETZER THOMAS ,  PRATSCH VOLKER ,  WENDRICH THOMAS ,  MENIG HELMUTH ,  WAMBACH LUDWIG ,  HARTH KLAUS

IPC: C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/04 ,  C07C47/127 ,  C07C47/19

Abstract: Carbonyl compounds of the formulawhere R1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R2 is a hydrogen atom, an unsubstituted or C1-C3-alkyl-monosubstituted to -trisubstituted C2-C4-alkenyl radical or a radical of the formulawhere R3 is a hydrogen atom or together with R4 is an oxygen atom, R4 is the radical OR6 or together with R3 is an oxygen atom, R5 is a hydrogen atom, an alkyl radical having from 1 to 8 carbon atoms, an unsubstituted or C1-C3-alkyl-monosubstituted to -trisubstituted C2-C4-alkenyl radical or a cyclohexyl or cyclopentyl radical and R6 is an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CHO or -CH2-CH2-O-CH2-CHO, are prepared by gas-phase oxidation of methanol or alcohols of the formulawhere R1 and R5 are as defined above, by means of an oxygen-containing gas in the presence of copper- and/or silver-containing catalysts, the catalyst system used comprising at least one phosphorus-containing copper- and/or silver-containing catalyst.

公开(公告)号：DE19811288A1

公开(公告)日：1999-09-23

申请号：DE19811288

申请日：1998-03-16

Applicant: BASF AG

Inventor： DEMUTH DIRK ,  FETZER THOMAS ,  PRATSCH VOLKER ,  WENDRICH THOMAS ,  MENIG HELMUTH

IPC: C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/04 ,  C07C47/127 ,  C07C47/19 ,  C07C45/29 ,  C07B41/06

Abstract: In the preparation of carbonyl compounds (I) by gas phase oxidation of methanol or alcohols with gas containing oxygen (O2) in the presence of catalysts containing copper and/or silver and optionally up to 20 ppm volatile phosphorus compound with respect to the alcohol, the catalyst system (III) consists of a catalyst (IIIA) containing Cu and/or Ag and P and a catalyst (IIIB) free from P. In the preparation of carbonyl compounds of formula (I) by gas phase oxidation of methanol or alcohols of formula (II) with gas containing oxygen (O2) in the presence of catalysts containing copper (Cu) and/or silver (Ag) and optionally up to 20 ppm volatile phosphorus (P) compound with respect to the alcohol, the catalyst system consists of a catalyst containing Cu and/or Ag and P and a catalyst free from P: R = H or 1-3 C alkyl; R = H, 2-4 C alkenyl, optionally mono- to trisubstituted by 1-3 C alkyl, or a group of formula (III); R = H; R = OR ; or R R = O; R = H, 1-8 C alkyl, 2-4 C alkenyl, optionally mono- to trisubstituted by 1-3 C alkyl, cyclohexyl or cyclopentyl; R = 1-4 C alkyl, cyclohexyl, cyclopentyl, -CH2-CHO or -CH2-CH2-O-CH2-CHO; R = H or -OR ; R = H, 1-4 C alkyl, cyclohexyl, cyclopentyl, -CH2-CH2-OH or -CH2-C2-O-CH2-CH2-OH.