Catalyst and a process for preparation of aldehydes in the...

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B01J 31/22 (2006.01) C07C 45/50 (2006.01) C07C 47/02 (2006.01) C07C 67/293 (2006.01) C07C 67/347 (2006.01) C07C 69/14 (2006.01) C07C 69/24 (2006.01) C07C 69/738 (2006.01)

Patent

CA 2258280

The invention relates to a catalyst containing rhodium and a compound of the general formula (I), in which R1, R2 and R3 are identical or different and independently of each other are hydrogen, an alkyl group or alkoxy group with 1 to 4 carbon atoms, an alkenyl group with 2 to 4 carbon atoms, or R1 and R2 including the carbon atoms connected therewith in each case form a ring with 6 carbon atoms, m and n independently of each other are 0 or 1, and (m+n) is equal to 1 or 2, and R is an unsubstituted phenyl radical or naphthyl radical or a phenyl radical or naphthyl radical substituted by an alkyl group with 1 to 4 carbon atoms, an amino group or dialkyl amino group with a total of 2 to 8 carbon atoms. The invention also relates to a process for preparation of aldehydes by reaction of an olefinic compound having 2 to 20 carbon atoms with carbon monoxide and hydrogen in the presence of said catalyst.

L'invention concerne un catalyseur contenant du rhodium et un composé de la formule générale (I) dans laquelle R?1¿, R?2¿ et R?3¿ sont identiques ou différents et représentent, indépendamment les uns des autres, hydrogène, un groupe alkyle ou alcoxy avec 1 à 4 atomes de carbone, un groupe alcényle avec 2 à 4 atomes de carbone, ou bien R?1¿ et R?2¿, y compris les atomes de carbone auxquels ils sont liés respectivement, forment un cycle avec 6 atomes de carbone, m et n valent, indépendamment l'un de l'autre, 0 ou 1, et (m + n) est égal à 1 ou 2, et r est un radical phényle ou naphtyle non substitué ou bien substitué par un groupe alkyle avec 1 à 4 atomes de carbone, un groupe amino ou dialkylamino avec un total de 2 à 8 atomes de carbone. L'invention concerne également un procédé pour la préparation d'aldéhydes par réaction d'un composé oléfinique ayant 2 à 20 atomes de carbone avec du monoxyde de carbone et de l'hydrogène en présence de ce catalyseur.

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