http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010059135-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b4956374e238689b820a3469ca82b9e0 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 |
| filingDate | 2008-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c69e4936ba58028ec8d8506963d2309f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86d1594b19407160b60ff25d8f885b10 |
| publicationDate | 2010-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010059135-A |
| titleOfInvention | Process for producing 2-anilino-3-methyl-6-di-n-butylaminofluorane |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing 2-anilino-3-methyl-6-di-n-butylaminofluorane having high purity and very little coloring with high yield. 2- (4-Dibutylamino-2-hydroxybenzoyl) benzoic acid and 4-methoxy-2-methyldiphenylamine are subjected to a condensation reaction in concentrated sulfuric acid, and the resulting condensation reaction product is subjected to a ring-closing reaction. In the method for producing anilino-3-methyl-6-di-n-butylaminofluorane, (1) The condensation reaction solution is discharged into ice water to obtain a condensation reaction product, (2) Toluene extraction of 2-anilino-3-methyl-6-di-n-butylaminofluorane obtained by heat-treating the resulting condensation reaction product with a mixed solution of toluene and an aqueous alkaline solution The liquid was concentrated at normal pressure until the remaining amount of toluene was 1.4 to 2.0 times the volume of 2- (4-dibutylamino-2-hydroxybenzoyl) benzoic acid used, (3) 2-anilino-3-methyl-6-di-n-butylaminofluorane seed crystal was added to the concentrated residue of the toluene extract at 73 to 77 ° C., and cooled to 20 ° C. or lower for precipitation. A process for producing 2-anilino-3-methyl-6-di-n-butylaminofluorane, characterized in that a product is obtained. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114349765-A |
| priorityDate | 2008-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.