http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107954951-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-33 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 |
| filingDate | 2017-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107954951-B |
| titleOfInvention | Method for manufacturing delta-valerolactone |
| abstract | The present invention provides a process for the manufacture of delta-valerolactone. The method comprises the following steps: 1) performing addition reaction on acetonitrile and acrolein to obtain a reaction solution containing an intermediate product 5-aldehyde valeronitrile; 2) carrying out reduced pressure distillation, separation and purification on the reaction solution obtained in the step 1) to obtain 5-aldehyde valeronitrile, and carrying out hydrogenation reaction on the 5-aldehyde valeronitrile to generate 5-hydroxyl valeronitrile; 3) carrying out self-alcoholysis cyclization reaction on the 5-hydroxypentanenitrile obtained in the step 2) to obtain delta-valerolactone. The total yield of the reaction reaches more than 95 percent. The method has the advantages of cheap and easily-obtained raw materials, small environmental pollution, mild reaction conditions, low cost, high yield and easy product purification, and is suitable for industrial production. |
| priorityDate | 2017-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 107.