http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112679326-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a156a99d373d935c5826a768df3df704 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-575 |
| filingDate | 2020-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51f5b6596798cd070eb0ea0b9b56d1ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_075efab4ec7162a842a3710e4c4fa057 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cba52f5e5903028b9a04d6e0bb368a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_114b015a097df286c4b36a1ad83a4434 |
| publicationDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112679326-A |
| titleOfInvention | A kind of preparation method of 3,4-dimethoxybenzaldehyde |
| abstract | The invention provides a preparation method of 3,4-dimethoxybenzaldehyde, which belongs to the technical field of organic synthesis. The preparation method provided by the invention comprises the following steps: after mixing o-phthalic ether and a Lewis acid catalyst, pass Adding hydrogen chloride gas to the system pressure of 0.2-0.5MPa, heating up to the temperature of the oxidation reaction, feeding carbon monoxide gas to carry out the oxidation reaction to obtain 3,4-dimethoxybenzaldehyde. The preparation method provided by the invention uses few raw materials, has wide raw material sources and low cost; the preparation process is simple and the three wastes are few. Further, the preparation method provided by the present invention has simple post-processing, easy operation and purification. The data of the examples show that the yield of 3,4-dimethoxybenzaldehyde obtained by the preparation method provided by the present invention is 92.3%, and the gas phase content is 99.7%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113149830-A |
| priorityDate | 2020-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.