http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57203025-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 |
| filingDate | 1982-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a706df16fc8513b40381988f6fe2487f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a199516f4c5716b50a585d374be2cec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0d7692863f6fc388357af05c3c212ba |
| publicationDate | 1982-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57203025-A |
| titleOfInvention | Preparation of unsaturated aldehyde |
| abstract | PURPOSE: To obtain an α,β-unsaturated aldehyde easily, by rearranging a dienyl ether as a raw material derived from an acetal of a relatively unsaturated aldehyde and a saturated alcohol under heating. n CONSTITUTION: A dienyl ether expressed by formula[R 1 WR 4 are H, or 1W20C hydrocarbon residue; R 5 is formula II (R 6 WR 8 are H or 1W40C satrated hydrocarbon residue)], e.g. dihydrocitral of formula III or phytyl aldehyde of formula IV, as a raw material is rearranged under heating to give an α,β-unsaturated aldehyde expressed by formula V. The reaction is preferably carried out in the presence of an acidic catalyst, e.g. hydrochloric acid or sulfuric acid. The reaction temperature is 200W500°C, preferably 220W450°C. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6191313-B1 |
| priorityDate | 1982-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.