http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108409600-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44e8ff80202d6fd5bc7e7aebc44390f1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C245-08 |
| filingDate | 2018-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6dfbf780543a80f8b5754e0fe6f2922 |
| publicationDate | 2018-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108409600-A |
| titleOfInvention | It is a kind of p-（The chloro- 4- fluorophenyls azo groups of 3-）The preparation method of aniline |
| abstract | The invention discloses one kind to the preparation method of (3 chlorine, 4 fluorophenyl azo group) aniline, including：3 chlorine, 4 fluoroaniline is dissolved in dilute hydrochloric acid solution, ice bath is cooled to certain temperature after heating for dissolving, the certain density sodium nitrite solution for being cooled to certain temperature is added, 30min is added, after being kept for certain reaction temperature reaction a period of time, a certain amount of urea is added and removes responseless sodium nitrite, stirring a period of time, starch potassium iodide paper measures reaction end, and diazol is made；Separately take 500mL four-necked bottles, a certain amount of aniline is taken to be dissolved in ethyl alcohol, a certain amount of sodium bicarbonate is added, diazol obtained before is added in the ethanol solution of salicylaldhyde, 60min is added, a period of time is reacted after adding, dilute hydrochloric acid solution is added and removes all sodium bicarbonates, a certain amount of water, then magnetic agitation is added, it is heated to 80 DEG C of reaction certain times, cooling, filtering, purifies drying to obtain the final product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112778781-A |
| priorityDate | 2018-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.