http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108218676-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-225 |
| filingDate | 2018-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108218676-B |
| titleOfInvention | Method for synthesizing 4-bromo-3-methylanisole |
| abstract | The invention belongs to the technical field of chemical production, and discloses a method for synthesizing 4-bromo-3-methylanisole. The method mainly comprises the following steps: (1) preparing halogenated alkane solution of bromine; (2) dropwise adding the bromine halogenated alkane solution prepared in the step (1) into m-methyl anisole; (3) after the dripping is finished, preserving the heat for 40-80 min; (4) and after the reaction is finished, distilling and concentrating the reaction solution to obtain a qualified product. The invention uses halogenated alkane as solvent and bromine as brominating agent, realizes mono-substitution bromination of m-methyl anisole under homogeneous phase condition, the conversion rate is more than 99%, the product purity is more than 98.5%, and the impurity content of polybrominated by-products and the like is less than 1%. |
| priorityDate | 2018-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.