http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102295547-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6f50df38acb987146f87dfffc7e1c426 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-27 |
| filingDate | 2011-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a55eda74ae1a15e35527d9b044fae67b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bd99d536ded700439413129d83dd990 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5cd6b40713896a66bc1327041185ded http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2e29d7b18d54789d0642da7433ba98d |
| publicationDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102295547-B |
| titleOfInvention | Method for preparing acetosyringone (AS) and acetovanillone through oxidation of lignin by using oxidizing agent |
| abstract | The invention discloses a method for preparing acetovanillone and acetosyringone (AS) through oxidation of lignin by using an oxidizing agent. According to the method, an oxidizing agent reacts with the lignin in an alkaline solution; the resulting reaction solution is subjected to acidification, extraction and concentration to obtain the crude product after completing the reaction; the treatments of recrystallization and rectification are performed to obtain the acetovanillone and the AS. The oxidizing agent is the one selected from p-nitrobenzoic acid, 3,5-dinitrobenzoic acid, 3-nitrosalicylic acid, 5-nitrosalicylic acid or 3,5-dinitrosalicylic acid. According to the present invention, the oxidizing agent has low toxicity, such that the harm to the environment can be reduced; the post-treatment steps are simplified, and the uses of the organic solvents are reduced, such that the secondary pollution to the environment is reduced; the yield is relatively high, the purities of the products are respectively 97.3% and 98.2% through the gas chromatography analysis; the two important chemical raw materials of guaiacol and lilac alcohol can be synchronously obtained when preparing the acetovanillone and the AS. |
| priorityDate | 2011-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.