http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9000227-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-29 |
| filingDate | 2012-11-23^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-04-07^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3235e22f81c14bb0081d7df66cf0a481 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c27114d652e9f090a7ed2a927839e944 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce990212c3a666822a12c654b9ee6e5e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d34de784f0b97c896595d86471a82092 |
| publicationDate | 2015-04-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-9000227-B2 |
| titleOfInvention | Process for preparing 3-substituted 2-alkenals, in particular prenal |
| abstract | The present invention to a process for preparing 2-alkenals of the formula I n nin whichn R 1 is selected from hydrogen and C 1 -C 4 -alkyl; and R 2 is selected from hydrogen, C 1 -C 12 -alkyl, C 2 -C 12 -alkenyl, C 4 -C 8 -cycloalkyl and C 6 -C 10 -aryl, wherein C 1 -C 12 -alkyl and C 1 -C 12 -alkenyl may be substituted with C 5 -C 7 -cycloalkyl or C 5 -C 7 -cylcoalkenyl;n ncomprising dehydrogenating an alkenol of the formula II, an alkenol of the formula III or a mixture thereof,n nn nwhereinn R 1 and R 2 are each as defined above,n nwherein the alkenol II, the alkenol III or a mixture thereof is brought into contact with a catalytic system comprising at least one ligand and a metal compound selected from ruthenium(II) compounds and iridium(I) compounds, andn nwherein the hydrogen formed during the dehydrogenation is removed from the reaction mixture by:n v) reaction with a reoxidant selected from C 3 -C 12 -alkanones, C 4 -C 9 -cycoalkanones, benzaldehyde and mixtures thereof; and/or vi) purely physical means. |
| priorityDate | 2011-11-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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