http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107082793-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J11-00 |
| filingDate | 2017-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107082793-B |
| titleOfInvention | The preparation method of Desogestrel important intermediate |
| abstract | The invention discloses a kind of preparation methods of Desogestrel important intermediate, include the following steps: for compound (2) to be dissolved in solvent, then the mixed system of zinc halide, solvent and trialkoxy silane is added, reaction, then from reaction system, it collects intermediate (4), reaction condition of the present invention is mild, risk is extremely low, easy to operate.Simultaneous reactions yield greatly improves, and reaction step also has traditional two-step method to become one-step method.Product (4) are prepared with we are bright, greatly reduce production cost.The problems such as avoiding used reagent and big, unstable, by-product environmental pollution is serious intermediate product toxicity simultaneously is convenient for industrializing implementation.Reaction equation is as follows: |
| priorityDate | 2017-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.