http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1447114-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_232361c9031a709144573276863c462b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C251-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C239-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C251-34 |
| filingDate | 1973-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1447114-A |
| titleOfInvention | Process for the preparation of 2-aryl-2-hydroxyiminoacetic acid |
| abstract | 1447114 Process for the preparation of 2-aryl- 2-hydroxyiminoacetic acid GLAXO LABORATORIES Ltd 5 Feb 1974 [20 Feb 1973] 8382/73 Heading C2C The invention comprises a process for the preparation of a 2-aryl-2-hydroxyiminoacetic acid which is rich in the syn-isomer by reacting an aryl-glyoxylic acid with hydroxylamine at a pH of at least 5À5 in the presence of water and of magnesium, calcium or zinc ions. Examples describe the preparation of 2-(thien- 2-yl), 2-(thien-3-yl), 2-(fur-2-yl), 2-(fur-3-yl), phenyl and 4-hydroxyphenyl-2-hydroxyliminoacetic acids in the presence of magnesium hydroxide, zinc oxide or calcium hydroxide. Fur-3-ylglyoxylic acid is prepared by reacting 3-acetylfuran with selenium dioxide at 100- 120‹ C. in pyridine. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5637750-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9419317-A1 |
| priorityDate | 1973-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.