http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105949101-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4078 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-12 |
| filingDate | 2016-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105949101-B |
| titleOfInvention | A kind of preparation method of vitamine A acetate |
| abstract | A kind of preparation method of vitamine A acetate provided by the present invention, comprises the following steps：(1) in alkaline conditions, 3 methyl, 4 oxygen, 2 butylene, 1 base acetate (abbreviation C5 aldehydo-esters) and Medronate tetra-ethyl ester occur condensation reaction and obtain intermediate C6 phosphates (entitled 5 (p diethylaminobenzoic acid ester group) 32,4 hexadiene of methyl, 1 acetate of chemistry)；(2) C6 phosphates carry out indexing in alkaline conditions, add C14 aldehyde (entitled 2 methyl 4 (2 of chemistry, 6,6 trimethyl, 1 cyclohexene, 1 base) 3 butylene, 1 aldehyde) Wittig Horner condensation reactions generation vitamine A acetate occurs.The preparation method raw material are easy to get, synthetic route is short, safe operation, suitable for industrial production. |
| priorityDate | 2016-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.