http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4262129-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e92b6abc43ac471a47947bf52282982 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D499-72 |
| filingDate | 1979-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1b1ff47a712502bf6f7030267284abf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_916b322745804a37c263668f6cbfdb25 |
| publicationDate | 1981-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4262129-A |
| titleOfInvention | Preparation of a 3-thienylmalonic acid and the corresponding diesters |
| abstract | Preparation of a 3-thienylmalonic acid or a diester thereof comprising reacting in a polar solvent in the presence of a copper (I) halide a thiophene compound of formula: ##STR1## wherein X=I or Br, n R 1 =H or a C 1-4 alkyl group, n R 2 =H or a C 1-2 alkyl group and n R 3 =H or a C 1-2 alkyl group, n with the proviso that R 2 and R 3 cannot be an alkyl group simultaneously, with a mono-deprotonated methylene compound of formula: ##STR2## wherein a cation is present and Z'=Z" is CN or COOR in which R is a C 1-4 alkyl group, or Z'=CN and Z"=COOR' in which R' is a C 1-2 alkyl group, followed by hydrolysis by methods known per se to get the corresponding free acid. |
| priorityDate | 1977-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 251.