http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109232508-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-96 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-96 |
| filingDate | 2018-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109232508-B |
| titleOfInvention | Preparation method of 1, 1-cyclohexyl diacetic anhydride |
| abstract | The invention provides a preparation method of 1, 1-cyclohexyl diacetic anhydride, which comprises the following steps: and (2) dripping acetic anhydride into the molten 1, 1-cyclohexanediacetic acid under a negative pressure state, and carrying out heat preservation reaction to obtain the 1, 1-cyclohexanediacetic anhydride. The preparation method of 1, 1-cyclohexyl diacetic anhydride provided by the invention can remove acetic acid generated by the reaction and unreacted acetic anhydride without the traditional reduced pressure distillation process, has less side reactions, can prepare the 1, 1-cyclohexyl diacetic anhydride product with the purity of more than 98 percent and the yield of more than 98.5 percent, and has wide application prospect. |
| priorityDate | 2018-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.