http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2531495-C2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01T1-202 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06L3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K9-00 |
| filingDate | 1975-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1985-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1985-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2531495-C2 |
| titleOfInvention | Pyrazoline compounds |
| abstract | The invention relates to new pyrazoline compounds based on 1,3-diphenyl-2-pyrazoline, a process for their preparation and the use of these compounds. The object of the invention was to provide radiation converter substances with better physical properties. It has now surprisingly been found that in the di- and triarylpyrazolines used as successful optical brighteners, by incorporating suitable steric groups together with selected substituents, unusually large Stokes' shifts can be achieved without changing the frequency range and the intensity of the fluorescence emission. The process for the production of radiation converter substances based on 1,3-diphenyl-2-pyrazoline as the basic body according to the compounds according to the invention is characterized in that the hydrogen atoms are in the 2 ', 6' position and / or in the 2 ", 6 "Position in the base body can be replaced by substituents from the group consisting of hydroxyl, methyl, ethyl, isopropyl, methoxy, ethoxy radicals, chlorine and bromine atoms, which cancel out the planarity of the base body. As a result of the targeted introduction of the substituents mentioned into the basic body in the manner according to the invention, almost colorless optical brighteners are obtained for the eye. An increase in the brightener concentration over the application range of 0.3% or an accumulation of the optical brightener through repeated washing no longer leads to ... U.S.W. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4023860-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4023859-A1 |
| priorityDate | 1975-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.