| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b992e5f7a0ebce9c8b6dff49206f2764 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-22 |
| filingDate |
2022-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7668a580a4d1c28bb91c14c66076cc01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9abce10dcdc03998b931bc5e660ffe5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1570125afb648daf43fe8332b4f486cd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bcfb3686e537cedc36e0c52b9a4c1e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_483061a009b09626ded38962547d4f96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4afc7cd35e4291001e99ef8789db3067 |
| publicationDate |
2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114426508-A |
| titleOfInvention |
A kind of preparation method of β-carotene intermediate polyolefin sulfide |
| abstract |
The invention discloses a preparation method of β-carotene intermediate polyolefin sulfide. The method starts from vitamin A or its derivatives, and obtains a halogenated product through one-step reaction, and then two molecules of halogenated product are obtained under the action of a coupling agent. The coupling reaction obtains the β-carotene intermediate polyolefin sulfide. The two-step reaction of the method can be completed in one pot, the raw material conversion rate is more than 98%, and the reaction yield is more than 90%; the operation is simple, the process treatment is convenient, and it is suitable for industrial production. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115057805-A |
| priorityDate |
2022-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |