http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115093386-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-10 |
| filingDate | 2022-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-115093386-B |
| titleOfInvention | A kind of production method of colorless, odorless and borate-free Boseine |
| abstract | The invention relates to a method for producing colorless, odorless and borate-free boson. The provided method is a production method for mass production of colorless, odorless, and borate-free Boseine, which is easy to enlarge, has low three wastes and low cost. Including (1), taking xylose and acetylacetone as raw materials and mixing and heating reaction with alkaline substances in a solvent to prepare β-acetone xyloside compound 1; (2), compound 1 reacting with benzyl bromide under alkaline conditions to obtain benzyl bromide The base-protected compound 2 is separated from the high salt water phase without desalting by its solubility; (3), compound 2 is hydrogenated and reduced by a chiral metal catalyst to obtain compound 3; no other salts are introduced, and no salt, no taste, and no boric acid are obtained. Boseine products of salt. And the selection of different metal catalysts can control the ratio of chiral isomers and the S/R ratio to >>99.5/0.5. The invention separates the water-soluble Boseine intermediates and products from the reacted high salt water phase through the protective group, controls the product isomer ratio through chiral metal catalysis, and solves the problem of borate and a large number of other inorganic substances. Compared with the ion exchange resin method used in the known process, the salt removal problem is complete, the cost is low, and it is easy to scale up. |
| priorityDate | 2022-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.