http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105646324-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-08 |
| filingDate | 2016-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105646324-B |
| titleOfInvention | A kind of preparation method of high-purity indoles |
| abstract | The present invention relates to a kind of preparation methods of high-purity indoles, belong to technical field of organic synthesis.It is using indoles as raw material, by with sodium hydrogensulfite addition reaction, obtain 2- sodium sulfonate indoline, solvent washing removal impurity, then high-purity indoles is made in alkaline hydrolysis.It is characterized mainly in that the major impurity 3- methyl indol contained in indoles in reaction process does not react with sodium hydrogensulfite, and reaches the separation purpose of indoles Yu 3- methyl indol.It is reaction medium that the present invention uses water in addition reaction and hydrolysis, and recycled solvent, cost of material is low, high income. |
| priorityDate | 2016-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.