http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105085469-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_138ebb236be3824ac0adf85b084a19a8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-38 |
| filingDate | 2015-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53b55aae1d4d934a53fdbc67acf6c42d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49e91be517c7bb29134650ff0624852c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2951cd027d751ede11fe9d2e8f9326f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27a38cbe86132aa24f2fe21d66d57666 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04c8d0c095cc44d661f2dc5b25e77e85 |
| publicationDate | 2015-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105085469-A |
| titleOfInvention | A kind of preparation method of 5-chlorothiophene-2-carboxylic acid |
| abstract | The invention relates to the technical field of preparation of heterocyclic compounds, and specifically discloses a preparation method of 5-chlorothiophene-2-carboxylic acid: 5-chloro-2-acetylthiophene is used as a raw material, dissolved in acetone, and the temperature is 0-10°C Add an aqueous solution of potassium dihydrogen phosphate dropwise to the reaction, and then add an aqueous solution of sodium chlorite dropwise to the reaction, and oxidize at 20-30°C to obtain 5-chlorothiophene-2-carboxylic acid. The method of the invention has mild operating conditions, is easy to control, has short reaction steps, high yield and no pollution, and is suitable for industrialized production. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106146457-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106146457-B |
| priorityDate | 2015-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.