http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1021529-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-448 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D211-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R11-00 |
| filingDate | 1964-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1966-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1021529-A |
| titleOfInvention | Diazaspiroalkanes |
| abstract | Diazaspiroalkanes in which each ring contains 4-6 carbon atoms and one hydrocarbyl-substituted nitrogen atom which is adjacent the spiro carbon atom, and having CH2 in both rings adjacent the spiro carbon atom, e.g. those of formula <FORM:1021529/C3/1> where R is hydrocarbon, R1 is hydrogen or hydrocarbon, and n is 2-4 (see Division C2), are useful as difunctional catalytic epoxy curing agents.ALSO:The invention comprises diazaspiroalkanes wherein each ring is heterocyclic of 4-6 carbon atoms and one hydrocarbyl-substituted nitrogen atom, each nitrogen being attached directly to the spiro carbon atom, and each ring having CH2 adjacent the spiro carbon atom; e.g. those of formula <FORM:1021529/C2/1> where R is hydrocarbon, R1 is hydrogen or hydrocarbon, and n is 2-4, which are obtained by reacting at at least 50 DEG C. a compound of formula <FORM:1021529/C2/2> with aqueous non-oxidizing acid of a specified minimum concentration and strength. The starting materials are prepared by condensation of appropriate lactams. N-oxides of the compounds of the invention are referred to. When catalytically hydrogenolysed, the compounds of the invention undergo ring opening to give compounds of formula <FORM:1021529/C2/3> or <FORM:1021529/C2/4> |
| priorityDate | 1963-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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