http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103232407-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d86d2f4dd3ec8b041c390750a310f9a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-64 |
| filingDate | 2013-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2a61733091e46ea85396cf68d2f8490 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cce9feddd80e5ce6560a07ce949f387b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99d64391aaa9bd7b5fbebfe320bd35e7 |
| publicationDate | 2015-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103232407-B |
| titleOfInvention | Method for preparing 2-methylbenzothiazole derivative |
| abstract | The invention discloses a method for preparing 2-methylbenzothiazole derivative with industrial application value, which comprises the following steps: adding acetic anhydride and 2-aminothiophenol halide into a glacial acetic acid reaction system, filtering after reaction; cooling the filtrate to 0-5 DEG C, slowly adding sodium hydroxide aqueous solution drop by drop, adjusting the system pH to pH=7.0+/-0.5; extracting by organic solvent, distilling and removing the organic solvent, obtaining the 2-methylbenzothiazole derivative. Compared with the prior art, the process provided by the invention has the advantages of simple operation without catalyst, low production cost, high efficiency, short reaction period and small dissipating energy, accordingly the invention can realize industrial scale production with repeatedly usable organic solvent and minimized environment pollution. |
| priorityDate | 2013-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.