http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011020932-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47cc435e1d443f13180f7766df104d9d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-42 |
| filingDate | 2009-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c551cfef1a5894ded143e1c38d542567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3eb8cc7434af2546a790fc41fe99d144 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a36a8a36de204a5b834bccb15269aab |
| publicationDate | 2011-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2011020932-A |
| titleOfInvention | Method for separating carboxylic acid anhydride having norbornene or norbornane structure, epoxy resin composition and optical member |
| abstract | The present invention relates to a method for easily and efficiently separating an endo isomer and an exo isomer from a mixture containing a norbornene structure or a carboxylic anhydride having an norbornane structure and an exo isomer, and taking each with high isomer purity. Provided. (A) a step of preparing a mixture containing at least one of a carboxylic acid anhydride having a norbornene structure and a carboxylic acid anhydride having a norbornane structure in which an endo isomer and an exo isomer coexist; and (B) the above mixture; A step of forming an endo-form and an exo-form hydrate by a hydration reaction with water, (C) a step of adding at least one of an organic solvent and an aqueous inorganic salt solution to the hydrate, and (D) an extraction solvent A step of separating an exo hydrate as a precipitate from, and (E) an exo hydrate separated in the step (D) above, and an extraction solvent after separating the exo hydrate Each of the obtained endo hydrates includes a step of cyclization. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104496942-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022210274-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011184340-A |
| priorityDate | 2009-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.