http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5082932-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-27 |
| filingDate | 1989-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_274b1f5a3fb753c3f0488ed30edef948 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b11f8a13707b48c3156d11b37c361819 |
| publicationDate | 1992-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5082932-A |
| titleOfInvention | Process for preparing substituted 1,2-naphthoquinone-(2)-diazide-4-sulfonic acid esters and their use in a radiation-sensitive mixture |
| abstract | The invention relates to a process for preparing 1,2-naphthoquinone-(2)-diazide-4-sulfonic acid esters of the general formula I ##STR1## which are substituted in at least one of the positions 5, 6, 7 or 8 by R=halogen, alkoxy groups or alkoxycarbonyl groups and in which X denotes an aryl group. The process comprises steps in which n a) suitably substituted β-naphthol is nitrosated, n b) sulfonation with alkali hydrogensulfite and acid in position 4 and reduction are carried out, n c) the naphthalenesulfonic acid derivative is oxidized, n d) the 1,2-naphthoquinone-4-sulfonic acid formed is reacted with toluenesulfonohydrazide in an organic solvent at temperatures from 20° to 100° C., n e) the naphthoquinonediazide compound is converted with chlorosulfonic acid or chlorosulfonic acid/thionyl chloride into the sulfonyl chloride, and f) the sulfonyl chloride is condensed with a phenolic component, a purification of the respective intermediate product by reprecipitation or recrystallization being unnecessary. n The process makes a simple technical procedure possible with good yield. The compounds prepared, in particular the 1,2-naphthoquinone-(2)-diazide-4-sulfonic acid esters substituted by 6-alkoxycarbonyl groups or by 7-alkoxy groups, are used as radiation-sensitive components in radiation-sensitive mixtures. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010081084-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7355021-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8563215-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008117308-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008117308-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007049742-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007026374-A1 |
| priorityDate | 1988-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 189.