http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-55075-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4acae202b6a15394281949545e70d2f6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24 |
| filingDate | 1983-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1990-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-55075-B1 |
| titleOfInvention | Preparation of thiophene compounds |
| abstract | A 2-thiophene acetic acid compound of formula (I): <IMAGE> in which: R represents an alkyl radical of 1 to 4 carbon atoms; and R1, R2 and R3 are the same or different and each represents a hydrogen atom, an alkyl radical of 1 to 4 carbon atoms or a halogen atom; is prepared by decarbalkoxylating an alkylmalonate of formula (IV): <IMAGE> in which R, R1, R2 and R3 are as defined above and Alk1 and Alk2 are the same or different and each represents an alkyl radical of 1 to 4 carbon atoms. The 2-thiophene acetic acid compound is an intermediate in the production of pharmaceuticals. The alkylmalonate used is itself claimed per se.n[GB2132607A] |
| priorityDate | 1982-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.