http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03170460-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eccd894c99fea2d1c0c8735872bb2309 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-18 |
| filingDate | 1990-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bea2b28258c07520eb8808feecfaf751 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae23d543f7fdc7ceecc5aba3fd0617f0 |
| publicationDate | 1991-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03170460-A |
| titleOfInvention | Process for preparation of alkylene-bis(2-pyridylamine) compound |
| abstract | PURPOSE: To readily produce the subject compound which is a component of Karl Fischer's reagent for water content determination, in a high yield by reacting 2-halopyridine derivatives with alkylenediamines. n CONSTITUTION: By reacting halopyridine derivatives (especially, 2-chloropyridine is suited) with alkylenediamines (especially, ethylenediamine is suited), alkylenebis(2-pyridylamine) compounds [especially, ethylenebis(2-pyridylamine), etc., are preferable] of the formula (R means H or 1-6C alkyl; and (n) is an integer of 2-8) is obtained. From the compound of the formula, sulfur dioxide and iodine, Karl Fischer's reagent for water content determination is formed. The yield of this process is very high with negligible amounts of by-products, thus the subsequent treatments are simple. n COPYRIGHT: (C)1991,JPO |
| priorityDate | 1989-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.