http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112851527-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-325 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 |
| filingDate | 2020-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112851527-B |
| titleOfInvention | The preparation method of m-aminophenylacetylene |
| abstract | The invention discloses a preparation method of m-aminophenylacetylene, which belongs to the technical field of organic synthesis. The method uses m-nitroacetophenone as a raw material, reacts with triethyl phosphite under the action of a catalyst, and the m-nitroacetophenone is continuously converted into an enol form and condensed with triethyl phosphite to obtain a condensed ester; Condensed esters are easy to separate and have high purity. The ester generates m-nitrophenylacetylene under the action of a strong base, which is reduced to obtain m-aminophenylacetylene. Compared with the acetophenone chlorination method, the synthesis method does not need to use phosphorus oxychloride to change the oxygen of m-nitroacetophenone into chlorine, with little pollution and high purity (up to 98%), avoiding the high pollution of raw material reagents. It is easy to use, easy to operate, green and environmentally friendly, and can easily realize industrialized production. |
| priorityDate | 2020-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.