http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104945246-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fcaa03b795cd8da869d58e8f28bf52e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10c3f12979e7751f6e54ae5594988766 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 |
| filingDate | 2014-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99678d3edac835273ef1d3a5f0531e6c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66048d2515b9e8bc4658ac99d8a99f49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7442908ce4c154ebfb6e17eb889ffa24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc97ac4ff4e48b4b6ae997814c23066a |
| publicationDate | 2015-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104945246-A |
| titleOfInvention | A kind of preparation method of p-alkoxyphenylacetic acid and its intermediate |
| abstract | The invention discloses a preparation method of p-alkoxyphenylacetic acid and its intermediate. The preparation method of p-alkylphenylacetic acid as shown in formula I disclosed by the present invention comprises the following steps: (1) in water, in the presence of alkali, the compound shown as formula II is hydrolyzed and ring-opened to form a salt; (2) After the reaction in step (1), the pH of the system is adjusted to 7-14, and the reaction system is directly subjected to a decarboxylation reaction of the compound shown in formula III under the action of an oxidizing agent. The preparation method of the compound shown in the formula II disclosed by the present invention comprises the following steps: performing condensation reaction of the compound shown in the formula IV and hydantoin under the catalysis of an alcohol amine compound in water. The preparation method of the invention has high yield, high purity, mild reaction conditions, simple operation, environmental protection and is more suitable for industrial production. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110627639-A |
| priorityDate | 2014-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.