| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c772809741a009001d2868062d558337
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3b3c964f224f9a0aac2f7b0b73d55e84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_60b65440e106f46e34f58834cf5265df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_17a24b5e885957f129b82d23d8cddc24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B55-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B55-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-22 |
| filingDate |
1995-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_773c0786cc87e47ab87212fadbf747df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e0e1225a04ce8c4e13f5efa0fd017bb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83f01e06c86d207e7f2260f4764847b0 |
| publicationDate |
1995-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9521169-A2 |
| titleOfInvention |
PROCESS FOR ISOMERIZATION OF SPIROCYCLIC COMPOUNDS WITH β-AMINOCARBOXYL AND/OR β-AMINOCARBONYL SYSTEMS |
| abstract |
To produce defined isomer mixtures of compounds with spiro beta -aminocarboxyl and/or beta -aminocarbonyl systems the invention proposes that they be dissolved in solvents which have good dissolving power for these compounds, whose relative permittivity is sufficient to stabilize the amphoteric intermediates occuring in isomerization, which as proton donors constitute hydrogen bridges, whose basicity is less than that of the compounds for isomerization and whose boiling point is so high that an adequate reaction speed can be attained by raising temperature. Further, the invention proposes that the isomerization be influenced or terminated by altering at least one of these factors and/or by altering the temperature. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7238374-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9831378-A1 |
| priorityDate |
1994-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |