C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 45/49 (2006.01) B01J 31/24 (2006.01) C07C 49/17 (2006.01) C07F 15/00 (2006.01)
Patent
CA 2761037
A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst comprising a rhodium complex and a diphosphine. The diphoshine is a trans-1,2-bis(bis(3,4-di-n-alkylphenyl)phosphinomethyl)cyclobutane and/or a 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis[bis(3,4-di-n-alkylphenyl)phosphino] butane. The process gives high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde.
L'invention concerne un procédé de production de 4-hydroxybutyraldéhyde. Ledit procédé consiste à : faire réagir un alcool allylique avec un mélange de monoxyde carbone et un hydrogène en présence d'un solvant et d'un catalyseur comprenant un complexe de rhodium et une diphosphine. Ladite diphoshine est un trans-1,2-bis(bis(3,4-di-n-alkylphenyl)phosphinomethyl)cyclobutane et/un 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis[bis(3,4-di-n-alkylphenyl)phosphino] butane. Le procédé permet d'obtenir un rendement élevé de 4-hydroxybutyraldehyde par rapport à 3-hydroxy-2-methylpropionaldéhyde.
Lyondell Chemical Technology L.p.
Osler Hoskin & Harcourt Llp
LandOfFree
Hydroformylation process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydroformylation process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroformylation process will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1718249