Process for preparing polyamine derivatives and intermediates thereof
US5874627A · kind A · utility
3Cited by
1References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 11, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Sep 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing polyamines of the formula ##STR1## by selective introduction of the groups Z--CH.sub.2 -- at the terminal nitrogens from a polyamine having no nitrogen substituents by formation of bis-hexahydropyrimidine derivative, acylation, reduction of acyl group to give Z--CH.sub.2 --, and solvolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.