| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-323 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-323 |
| filingDate |
1999-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7edcdc6674483cea8d5b874171769f5c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17bb7ccdce1094b9d6c9deacfee845b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efaba283c16d9047260f111ffb55bc26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8bbcd1d40ed5be88ab002a0e52c7989 |
| publicationDate |
2000-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6166223-A |
| titleOfInvention |
Process for the preparation of 2,4-dimethylpyrrole |
| abstract |
A process for the preparation of 2,4-dimethylpyrrole is described in which a 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole is refluxed with from 10 to 30% strength aqueous alkali metal hydroxide solution until the solid has passed into solution, the reaction mixture is neutralized with acid and the mixture is refluxed further until decarboxylation is complete. The process makes it possible to work under significantly milder, less aggressive conditions than are known from the prior art. |
| priorityDate |
1998-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |