http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109336762-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-343 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-612 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-343 |
| filingDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109336762-B |
| titleOfInvention | Synthesis method of diethyl 2- (2, 6-diethyl-4-methylbenzene) malonate |
| abstract | The invention discloses a method for synthesizing 2- (2, 6-diethyl-4-methylbenzene) diethyl malonate, which comprises the following steps: under the action of a catalyst, reacting 2, 6-diethyl-4-methylaniline with isoamyl nitrite to obtain 2, 6-diethyl-4-methylphenyl diazonium salt; reacting 2, 6-diethyl-4-methylphenyl diazonium salt with diethyl malonate under the alkaline condition to obtain diethyl 2- (2, 6-diethyl-4-methylbenzene) malonate. The yield of the 2- (2, 6-diethyl-4-methylbenzene) diethyl malonate can reach about 85 percent, and the highest yield can reach 92 percent; the possibility of generating three wastes is greatly reduced by adopting a non-aqueous system. The method takes the isoamyl nitrite as a diazotization reagent, not only accelerates the reaction speed, but also compensates for low-temperature kinetic energy under the condition of the existence of a catalyst, the produced diazonium salt is relatively stable in a low-temperature and non-aqueous system, the decomposition is less, and the diazotization reaction yield is close to 100%. |
| priorityDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.