http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57144261-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ead90443277482e25bf91bfddef2b5a7 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D217-04 |
| filingDate | 1981-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_991c13adfe04defcd08dd474b2b60841 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bfc698df1193095af28c9bcab644363 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81a397327cbd35786068ca1c8d1e4968 |
| publicationDate | 1982-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57144261-A |
| titleOfInvention | Preparation of n-substituted isoquinolinium salt |
| abstract | PURPOSE: To prepare the titled compound by reacting a tar base mixture containing isoquinoline, quinoline, 2-methylquinoline, etc. with urea, separating 2- methylquinoline as urea adduct, and separating only the titled compound from the residue with a quaternizing agent. n CONSTITUTION: A tar base mixture composed mainly of a fraction having a boiling point of 230W260°C, obtained by distilling a tar base prepared by the acid extraction of coal tar oil or liquefied coal oil, and containing isoquinoline, quinoline, 2-methylquinoline and other alkyl-substituted derivative, is mixed with urea, and 2-methylquinoline is separated as urea adduct. The residual isoquinoline base mixture is mixed with a quatenizing agent of formula R n X (R is organic residue; n is 1 or 2) and made to react at normal temperature W250°C, especially 100W200°C, and the produced N-substituted isoquinolinium salt is separated and purified. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104788371-A |
| priorityDate | 1981-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.