http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107628989-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-44 |
| filingDate | 2017-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107628989-B |
| titleOfInvention | Synthetic method of 2-chloro-5-chloromethylpyridine |
| abstract | The invention discloses a synthesis method of 2-chloro-5-chloromethylpyridine, which comprises the steps of vaporizing 3-methylpyridine, mixing nitrogen gas serving as a carrier gas with chlorine gas, introducing the mixture into a tubular reactor filled with a supported palladium chloride catalyst, and carrying out chlorination reaction to obtain 2-chloro-5-chloromethylpyridine. According to the invention, 3-methylpyridine and chlorine are used as raw materials, a supported palladium chloride catalyst is selected, and the 2-chloro-5-chloromethylpyridine is obtained through one-step reaction, so that the reaction rate can be accelerated, the selectivity of a target product can be improved, and the molar yield of the 2-chloro-5-chloromethylpyridine reaches about 50%. And the three wastes generated in the reaction are less, the noble metal palladium used in the reaction is easy to recover, and the comprehensive cost is lower. |
| priorityDate | 2017-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.