http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104910231-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J9-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 |
| filingDate | 2015-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104910231-B |
| titleOfInvention | A kind of synthetic method of 25-hydroxyl-7-DHC |
| abstract | The present invention relates to the synthetic method of a kind of 25 hydroxyl 7 dehydrocholesterols.It is with 25 hydroxyl 7 ketone group cholesterol derivatives as raw material, under sulfohydrazide and alkali effect, under organic solvent-free, and mechanical ball milling reaction in ball grinder, then obtain 25 hydroxyl 7 dehydrocholesterols through hydrolysis.The present invention, under condition of no solvent, uses mechanical ball milling reaction, and its attrition process is without there being flour dust overflow, and reaction controllability is good, and reaction efficiency is high, and avoids in post processing the reclaimer operation to solvent, simplifies operation, reduces environmental pollution, environmental protection；And good reaction selectivity, yield is high, easy and simple to handle, low cost, and post processing is simple, and the three wastes are few, and product is easily separated and purity is high, and its yield is up to 89%, and melting range is short, and product purity is high. |
| priorityDate | 2015-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.