http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06100512-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-42 |
| filingDate | 1992-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_942eb39bf2b3dd3657c762945155da8b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eed1a723dbcc46d3dd209b5c8155eb55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce454f27501c9d5a8cf32fef78744adc |
| publicationDate | 1994-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H06100512-A |
| titleOfInvention | Method for producing keto acid |
| abstract | (57) [Summary] [Purpose] To obtain keto acid, which is an important intermediate for the production of fluorane compounds useful as a dye for pressure-sensitive recording or heat-sensitive recording, An object of the present invention is to provide a method for industrially advantageous production by a simple process without using an alkali or the like, and thus without producing neutralization drainage or the like. [Structure] General formula (I) (In the formula, R 1 and R 2 each independently represents an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 4 to 8 carbon atoms.) ) General formula (II): (In the formula, R 1 and R 2 are the same as above.) The m-aminophenol derivative and phthalic anhydride are reacted in a water-soluble lower carboxylic acid to form a keto, (b) Next, water or a mixed solvent of water and a water-soluble organic solvent is added to the obtained reaction solution and crystallized to obtain crystals. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7423511-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0853078-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2314329-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2314329-B |
| priorityDate | 1992-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.