| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-18 |
| filingDate |
1997-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8977bdaf5f824aab66a48162efde1f02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cecf896510029bf2a43fccd10537aa3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6904c3866e4866b4abcb825e971fea57
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7f7e29590de2d251b0af007fdfa8d9e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47f40dfd5e0dc8ba110f6ea1b1d39244 |
| publicationDate |
1998-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H10338687-A |
| titleOfInvention |
Method for producing dihydropyran derivative |
| abstract |
(57) [Problem] To provide a simple method capable of economically producing a dihydropyran derivative with high productivity and high yield. SOLUTION: An aldehyde and a diene compound are reacted in the presence of a Lewis acid catalyst to produce a 5,6-dihydro-2H-pyran derivative represented by the general formula (III). A compound having a lower coordination force to a Lewis acid than that of the compound and having a function of coordinating with the Lewis acid to dissolve the Lewis acid in a solvent (excluding nitro compounds) is used. Embedded image (Wherein, R 1 is H, an alkyl group having 1 to 12 carbon atoms, an aryl group having a total of 6 to 12 carbon atoms which may be substituted with an alkyl group, and R 2 and R 3 are a hydrogen atom, a carbon atom of 1 And 6 to 6). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009215236-A |
| priorityDate |
1997-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |