http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0586299-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7962109cd4763907b82b66760cd0ae8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 |
| filingDate | 1991-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f97c31aee819c2c0dbe77d5116276cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_415f80a8cf9b3135db9d284b76efde96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01de6044723a82d4b3a5642310b6a83f |
| publicationDate | 1993-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0586299-A |
| titleOfInvention | Method for producing fluoran compound |
| abstract | (57) [Summary] (Modified) [Constitution] 2- (2-hydroxybenzoyl) benzoic acid derivative (I) and phenol alkyl ether derivative (I In the method for producing a fluorane compound (III) by subjecting I) to a condensation reaction in concentrated sulfuric acid and subjecting the obtained condensate to a ring-closing reaction, a fluoran compound added to a mixture of an alkaline aqueous solution and an organic solvent. Manufacturing method. [In a preferred embodiment, (X) m is 4-di (lower alkyl) amino, 4- (N-cyclohexyl-N-methyl) -Amino, 5-methyl, or 4-methyl-5-chloro, and (Y) n is 3- or 4- (halo-substituted) phenylamino] [Effect] Dispersion step of condensation reaction solution and ring-closing reaction step Can be performed at the same time, the cooling energy during the dispersion step is significantly reduced, and a product with little coloration can be obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114349765-A |
| priorityDate | 1991-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.