http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-834451-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d202e9e866984fe229f6facc38f1d740 |
| filingDate | 1956-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1960-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-834451-A |
| titleOfInvention | Pyridine compounds |
| abstract | A 2 - methyl - 3 - hydroxy - 4 - (C1-5 alkoxy) methyl - 5 - hydroxymethylpyridine is obtained in a process that comprises intimately contacting an acidified aqueous solution of a 2-methyl - 3 - amino - 4 - (C1-5 alkoxy) - methyl-5 - aminomethylpyridine with a C1-5 alkyl nitrite. Suitable nitrites are ethyl nitrite, methyl nitrite, amyl nitrite and butyl nitrite. The The aqueous solution may be acidified with hydrochloric acid equivalent to about 4-5 mols. per mol. of the diamino pyridine compound. The aqueous solution is heated in the temperature range 40-90 DEG C. and the alkyl nitrite introduced in gaseous form. An example describes the preparation of 2 - methyl - 3 - hydroxy - 4 - methoxymethyl - 5 - hydroxymethylpyridine. |
| priorityDate | 1955-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.