| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-745
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-203 |
| filingDate |
1987-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16a6cd115099b21c181192e06b8324b0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc34cbe7e7a9b2eba0b8ada7f88ca878
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5deb110605f21f82fb4a8f78de05e517 |
| publicationDate |
1988-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S63225330-A |
| titleOfInvention |
Production of alpha,beta-unsaturated ketone |
| abstract |
PURPOSE:To economically produce the titled compound useful as a raw material for organic syntheses and solvent, by condensing the same ketones and different ketones through dehydration in a liquid phase by the use of an oxide or hydroxide of tin or iron as a catalyst. CONSTITUTION:A ketone shown by formula I (R<1> is H or alkyl; R<2> is alkyl) is condensed with a ketone shown by formula II (R<3> is H or alkyl; R<4> is alkyl) through dehydration in the presence of a highly active ketone condensation catalyst comprising an oxide or hydroxide of tin or iron (e.g. stannic acid, ferric hydroxide, stannic oxide and alpha-ferric oxide) in a liquid phase to give an alpha,beta-unsaturated ketone (e.g. mesityl oxide). Oxides in the catalyst may be hydrous oxides. |
| priorityDate |
1986-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |