http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104529823-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C257-08 |
| filingDate | 2014-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104529823-B |
| titleOfInvention | Benzimidate compound preparation method |
| abstract | The invention discloses a benzimidate compound preparation method. According to the invention, a benzonitrile derivative represented by a formula (III) is subjected to a reaction with alcohol and a catalyst under a temperature of -30 DEG C to 50 DEG C, such that benzimidate derivative hydrochloride represented by a formula (II) is obtained; or alkali is used for neutralizing after the reaction, such that a benzimidate derivative represented by a formula (I) is obtained. According to the invention, a mixed gas is used as the catalyst, such that high-yield high-product-purity benzimidic acid derivative and hydrochloride thereof can be directly obtained. A target production yield is higher than 93%, and the content is higher than 95%. Also, with the method, the hydrogen chloride dose can be greatly reduced, and the amount of agents used for producing hydrogen chloride can be greatly reduced. The conversion efficiency is high, and the reaction process is simple to operate. The method is suitable for industrial production. |
| priorityDate | 2014-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 166.