| 摘要 |
In a new process for the prodn of ketone of formula R1-C0-R2 (I) by reaction of a carboxylic acid of formula R1-C00H (IIa) with a carboxylic acid of formula (IIb) or with a ketone of formula (Ib) or of a mixture of (IIa), R2-C00H (IIb) and R2C0-R2 (Ia) in the gas phase in the presence of a catalyst, a catalyst is used in which at least 50% of the active mass consists of titanium dioxide and which has a specific surface of greater than 10 sq metres/gramme. In (I)-(IIb) R1, R2 = alkyl, cycloalkyl, arylalkyl, aryl or heteroaryl, at least one of R1 and R2 carrying at least one H-atom in the alpha-position.
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| 申请人 |
BASF AG, 6700 LUDWIGSHAFEN, DE |
发明人 |
DOCKNER, TONI, DR., 6701 MECKENHEIM, DE;IRGANG, MATTHIAS, DR., 6900 HEIDELBERG, DE;RUST, HARALD, 6730 NEUSTADT, DE;EBEL, KLAUS, DR., 6704 MUTTERSTADT, DE;SCHOMMER, CHARLES, DR., 6700 LUDWIGSHAFEN, DE |
