http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4945180-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_66c1dfdf25dfaf7b9c974d475faf856b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-377 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-377 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-08 |
| filingDate | 1988-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92d43a63991d90314ed573196bfa4be1 |
| publicationDate | 1990-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4945180-A |
| titleOfInvention | Process for the preparation of E-2-propyl-2-pentenoic acid and physiologically compatible salts thereof |
| abstract | A novel process for the preparation of E-2-propyl-2-pentenoic acid and its physiologically compatible salts is described, in which di-n-propyl-ketone-cyanohydrin is used as the starting compound. The compound is either n (a) dehydrated with thionyl chloride and the acid nitrile formed is subsequently saponified with a stoichiometric excess of potassium hydroxide, or n (b) is initially converted into 2-hydroxy-2-propyl-pentanoic acid and the latter is subsequently dehydrated in the presence of a less than stoichiometric quantity of a tertiary amine at a temperature of at least 200° C. n The free acid is optionally converted into the salt form, preferably using the corresponding salts of carbon dioxide in an aqueous acetone solution. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6864389-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006223888-A1 |
| priorityDate | 1987-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.