Methods for producing chiral aldehydes

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 45/50 (2006.01) C07C 45/80 (2006.01) C07F 9/6574 (2006.01)

Patent

CA 2351397

The invention relates to methods for producing chiral aldehydes by the enantioselective hydroformylation of prochiral substrates using a catalyst comprised of a transition metal and of a chiral ligand. The invention is characterized in that the chiral ligand is a compound of general formula (I), whereby the dashed rings R7-R10 are optional, and one or more of rings R1-R6 or R7-R10 are substituted with one or more substituents which can be selected independent of one another and which are of general formula(CH2)x(CF2)yF (x = 0-5; y = 1-12) or of branched isomers thereof. The invention particularly relates to the execution of said methods in compressed (liquid or supercritical) carbon dioxide used as a reaction medium.

La présente invention concerne des procédés pour la préparation d'aldéhyde chiraux par hydroformylation éniantosélective de substrats prochiraux à l'aide d'un catalyseur constitué d'un métal de transition et d'un ligand chiral. Ces procédés sont caractérisés en ce que le ligand chiral est un composé de la formule générale (1), les cycles R7-R10 représentés en pointillés pouvant ne pas toujours être présents et un ou plusieurs des cycles R1-R6 ou R7-R10 étant substitués avec un ou plusieurs substituants, pouvant être choisis indépendamment les uns des autres, de la formule générale(CH¿2?)¿x?(CF¿2?)¿y?F (x = 0-5; y = 1-12), ou leurs isomères ramifiés. L'invention concerne notamment la réalisation desdits procédés dans du dioxyde de carbone comprimé (liquide ou surcritique) comme milieu de réaction.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Methods for producing chiral aldehydes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for producing chiral aldehydes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for producing chiral aldehydes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1761831

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.