| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_108b142d49573f053d08fb995425d61d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-75 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-794
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-597
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-647
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-28 |
| filingDate |
1990-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7676fab88dcb8e97ac433fcb12ea0987
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccee5f54b821ae2a69d2aebcdd4fcbde |
| publicationDate |
1990-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9015789-A1 |
| titleOfInvention |
Preparation of unsaturated ketones |
| abstract |
Unsaturated ketones are produced from ketones and paraformaldehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and a small amount of a carboxylic acid. Temperatures of 120-150C and pressures of 775-1135 kilopascals are preferred. Di-unsaturated ketones such as divinyl ketone may also be produced; if the starting ketone already has an unsaturated group, a second unsaturated group will be produced. |
| priorityDate |
1989-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |