http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-263191-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_28fd8a2f7ca983e63d38bcf83d182d44 |
| filingDate | 1926-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1928-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-263191-A |
| titleOfInvention | Process for the production of 2-amido-4-nitrophenoxyethanol or -propandiol |
| abstract | 263,191. Chemical Works, formerly Sandoz. Dec. 19, 1925, [Convention date]. 2-Amino-4-nitrophenoxy-ethanol orpropandiol, which may be used for the preparation of dyestuffs, are obtained by treating 2: 4-dinitrophenoxy-ethanol or -propandiol with reducing agents, in particular with alkali sulphides or polysulphides. In an example, 2: 4-dinitrophenoxypropandiol is warmed with sodium tetrasulphide; on cooling and neutralizing, an orange precipitate of the nitramine is formed. This is freed from sulphur by dissolving in hydrochloric acid; the base may then be precipitated with soda, and recrystallized from water. The corresponding nitroaminoethanol may be similarly obtained from 2 : 4-dinitrophenoxyethanol. 2:4-Dinitrophenoxyethanol is made by heating 2 : 4-dinitrochlorbenzene with glycol and soda. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-376655-B |
| priorityDate | 1925-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.