http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4477673-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 |
| filingDate | 1983-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1984-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ae583f0545f8e33e127607b86f90d2f |
| publicationDate | 1984-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4477673-A |
| titleOfInvention | Process for the preparation of substituted divinylpyridines and novel substituted divinylpyridines |
| abstract | The invention relates to compounds of the formula I ##STR1## wherein R' is bound in the 4- or 5-position, R and R' are --CH 2 OH, --CH 2 CH 2 OH, --CH 2 CH 2 OCH 2 C 6 H 5 , --CH 2 --X, --CH 2 P.sup.⊕ (Y) 3 X.sup.⊖, --CH 2 P(O)(C 1-3 alkoxy) 2 or --CH═CH 2 , R" is C 1-10 alkyl, X is a halogen atom, X.sup.⊖ is the anion corresponding to X and Y is phenyl or phenyl which is substituted by a C 1 -C 5 alkyl group. These compounds can be obtained by a novel simple process in good to very good yield by co-cyclotrimerizing nitriles R"--CN with alkynes HC═C--Z (Z is --CH 2 OH, --CH 2 CH 2 OH or --CH 2 CH 2 OCH 2 C 6 H 5 ), in the presence of a cobalt(I) catalyst, dehydrating the resultant pyridines either to compounds of the formula I, in which R and R" are --CH═CH 2 , or converting them into the corresponding bishalomethylpyridines, reacting these latter with triphenylphosphines or trialkylphosphites and subjecting the pyridinephosphonium salts or pyridinephosphonic acid tetraalkyl esters so obtained to a Wittig or Wittig-Horner reaction. Compounds of the formula (I), in which R and R" are --CH═CH 2 , can also be obtained by direct reaction of nitriles R"--CN with vinyl acetylene in the presence of cobalt(I) catalysts, and are used e.g. as crosslinking agents or for the production of polymers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0055135-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6365744-B1 |
| priorityDate | 1982-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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