http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105601469-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-25 |
| filingDate | 2016-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105601469-B |
| titleOfInvention | The synthetic method of 1 (1 chloromethyl vinyl base) 2,4 difluorobenzenes |
| abstract | A kind of synthetic method of 1 (1 chloromethyl vinyl base) 2,4 difluorobenzenes, step includes：1,2,3 trichloropropane is added drop-wise in 1,3 difluorobenzenes, alchlor is added after 20 40min；0.5 1.5h at 5~5 DEG C, is warming up to 20 45 DEG C of 1.5 3h of reaction；It is added in hydrochloric acid solution and extracts, uses saturation NaHCO successively 3 Solution, water, saturated aqueous common salt washed once respectively；Use anhydrous Na 2 SO 4 Filtered after drying, solvent evaporation obtains 1,3 dichloro 2 (2,4 difluorophenyl) propane；(2, the 4 difluorophenyl) propane of 1,3 dichloro 2 and potassium hydroxide are added in the tert-butyl alcohol, flow back 3.5 6h；Remove the tert-butyl alcohol, water on the rocks is neutralized with hydrochloric acid neutrality at 5~5 DEG C, is extracted in three times with dichloromethane, use anhydrous Na 2 SO 4 Filtered after drying, evaporation, which is removed, obtains target product after dichloromethane.Path is： |
| priorityDate | 2016-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.