http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63230692-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5d04736b0b882a4f5a1e0e0e4cd8cbb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-1455 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-3275 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 |
| filingDate | 1987-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_560989ec6b916ee7468e83367c82587d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfc03495bb4167cf65ee20e807f73133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a68c5b0f35bf4324ed0bdb9da973924 |
| publicationDate | 1988-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63230692-A |
| titleOfInvention | Production of fluoran derivative |
| abstract | PURPOSE:To simply obtain the titled compound useful as a dye for thermosensitive recording in high yield, by reacting an ortho-(dialkylamino- hydroxybenzoyl) benzoic acid with an specific diphenylamine derivative. CONSTITUTION:(A) An ortho-(4-dialkylamino-2-hydroxybenzoyl)benzoic acid expressed by formula I (R1 and R2 are 1-6C alkyl, 4-6C cycloalkyl, phenyl or 1-3C substituted phenyl) is reacted with (B) a diphenylamine derivative, preferably of 0.5 times mole using a condensing agent such as hydrochloric acid, phosphoric acid, etc., preferably at -5-75 deg.C to provide the aimed compound expressed by formula III. |
| priorityDate | 1987-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.