http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106496148-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A24B15-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A24B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D241-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-0092 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A24B15-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A24B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-24 |
| filingDate | 2016-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106496148-B |
| titleOfInvention | The preparation method and applications of the latent fragrant monomer pyrazine -2,3- diformic ester of cigarette |
| abstract | A kind of latent fragrant monomer pyrazine -2 of cigarette, the preparation method of 3- diformic ester, include the following steps: to take pyrazine -2,3- dioctyl phthalate and single hydroxyl alcohol are dissolved in dry methylene chloride, stir 10min-30min, 4-dimethylaminopyridine (DMAP) and 1- ethyl-(3- dimethylaminopropyl) phosphinylidyne diimmonium salt hydrochlorate (EDCHCl) is added, 4-12h is stirred at room temperature, TLC monitoring reaction, tracks reaction end, water washing is added into organic phase, liquid separation, it is washed again with saturated sodium chloride solution, liquid separation, organic phase anhydrous Na 2 SO 4 It is dry, it is concentrated to give crude product, carries out column chromatography for separation then up to the product.Product prepared by the present invention can significantly improve the additive amount in cigarette, and the outer fragrant kind without influencing cigarette is applied in cigarette as fragrance-enhancing tobacco agent, can reduce the irritation and miscellaneous gas, the mellow and full sense of raising cigarette smoke and comfort of cigarette. |
| priorityDate | 2016-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.