http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0375333-A3
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-755 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-26 |
| filingDate | 1989-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1991-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0375333-A3 |
| titleOfInvention | Method for the reductive methylation of primary amines |
| abstract | Permethylated amines particularly pentamethyldinethylenetriamine, are prepared by a two stage reductive nmethylation of amines containing at least one primary namine group. In the first stage, only a sufficient namount of formaldehyde to monomethylate the primary namine groups present is continuously fed to the reaction nsystem at a high flow rate, and thereafter the flow rate nof the formaldehyde is substantially reduced for the nsecond stage in which methylation is completed The nproduction of by-products is substantially reduced and npreparation times are significantly shorter in ncomparison to processes where the formaldehyde flow rate nremains constantly high for the entirety of the nreaction. |
| priorityDate | 1988-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.