http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109867592-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c96040f3022bf3a9cc51e9b1b31c0900 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-565 |
| filingDate | 2017-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14b07857a573da608ad26b96cc2bbfc4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fe2770edd32ca53008657b9d5a0deeb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_434254d25e3f27f3979d22354fa7ed62 |
| publicationDate | 2019-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109867592-A |
| titleOfInvention | A kind of synthesis technology of 3,5- 4-dihydroxy benzaldehyde |
| abstract | The invention belongs to fine-chemical intermediate synthesis technical fields, refer specifically to the synthesis technology of one kind 3,5- 4-dihydroxy benzaldehyde.It the steps include: that electrophilic activator and reaction medium is added to reaction kettle in (A), stir, it is cooling, oxidant is added dropwise, 3,5- dihydroxybenzyl alcohol solution is added dropwise, triethylamine is added；(B) reactant is put into cryosel acid, liquid separation, extractant extraction, washing dries, filters, rotates out solvent, obtains crude product.(C) step (B) crude product is dissolved in acetone, is added drop-wise in the n-hexane of suitable speed stirring, portioned product is obtained by filtration, filtrate freezes to obtain another part product, through being dried to obtain product.One of the electrophilic activator oxalyl chloride and thionyl chloride.The oxidant is dimethyl sulfoxide.The reaction medium is one of methylene chloride and tetrahydrofuran.The extractant is one of ether and methylene chloride.The present invention has the characteristics that be simple to operate and friendly to environment, at low cost, high income. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256214-A |
| priorityDate | 2017-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.