http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111909024-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-373 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-373 |
| filingDate | 2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111909024-B |
| titleOfInvention | A kind of preparation method of 4-formylbenzoic acid |
| abstract | The invention provides a preparation method of 4-formylbenzoic acid. The present invention uses 4-methylbenzoyl chloride as a raw material, obtains 4-chloromethylbenzoyl chloride through chlorination, and obtains 4-chloromethylbenzene by hydrolysis Formic acid, and then react with urotropine to obtain 4-formylbenzoic acid. The method provided by the invention is simple in process, does not need to use special equipment, and has low cost; and the method provided by the invention has higher product yield and purity, and is easy to realize large-scale industrial production. The results of the examples show that the yield of each step of the preparation method of 4-formylbenzoic acid provided by the present invention is all ≥90%, and the purity of the finally obtained 4-formylbenzoic acid is ≥99.7%. |
| priorityDate | 2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.