http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0320249-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/C07C215-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-10 |
| filingDate | 1989-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65fe6872b4ec2a4466d77c600f3340d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86f141b82f2044a686b17a93e59be7c3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51c6291a8220ee4dd5350be35f610bf7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a1995bbe20eb703e74842672a05307a |
| publicationDate | 1991-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0320249-A |
| titleOfInvention | Production of n-alkylaminophenol |
| abstract | PURPOSE: To enable efficient and facilitated purification of the subject compound by treating the reaction mixture from a dihydroxylic phenol and an alkylamine with an alkali to convert the unreacting phenol into a salt and conducting extraction of the product with an organic solvent followed by distillation. n CONSTITUTION: A dihydroxylic phenol is allowed to react with an alkylamine and the reaction mixture is treated with an alkali to convert the unreacting phenol into an alkali metal salt. Meanwhile the product, N-alkylaminophenol is extracted with an organic solvent and the oily phase is distilled to give purified N-alkylaminophenol. The recovered alkali salt of the dihydroxylic phenol is neutralized and free phenol is collected by water-oil separation and reused in the amination reaction. The process according to the invention leads to high conversion of the dihydroxylic phenol and high reaction efficiency with by-products reduced. The product is useful as an intermediate of dyes for heat- sensitive, pressure-sensitive recording paper, xanthene dyes and fluorescent dyes. n COPYRIGHT: (C)1991,JPO&Japio |
| priorityDate | 1989-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.