http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102633708-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-82 |
| filingDate | 2012-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102633708-B |
| titleOfInvention | Synthesizing and purifying method of midbody 9-(2-ethoxy) carbazole |
| abstract | The invention relates to a preparing and purifying method of midbody 9-(2-ethoxy) carbazole, comprising the following steps of: carrying out a reaction on carbazole and halogenated ethanol as raw materials under the effect of a phase transfer catalyst, stopping reacting when the reaction is carried out to a certain degree, selecting solvent, adequately using the solubility difference between the raw material carbazole and the 9-(2-ethoxy) carbazole, selecting the proper solvent to separate the carbazole from the midbody 9-(2-ethoxy) carbazole by means of dissolving and filtering, and simply recrystallizing, so that a product with required purity can be obtained, and the unreacted raw material carbazole can be recovered. The method is good in selectivity, high in product purity, wide in raw material source, low in price, and simple, reasonable and feasible in technology. |
| priorityDate | 2012-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 146.