Reacting a (meth)acrylic anhydride with a diamine to form a n-dialkylaminoalkyl(meth)acrylamide
US4859796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1986 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Nov 26, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of an N-dialkylaminoalkyl(meth)acrylamide of formula: ##STR1## in which: R.sub.1 is a methyl radical or a hydrogen atom, PA0 R.sub.2 is a straight-chain or branched alkyl group containing at most 10 carbon atoms PA0 R.sub.3 and R.sub.4, which are identical or different, may be: PA1 either two aliphatic alkyl groups containing from 1 to 4 carbon atoms, PA1 or R.sub.3 is an aliphatic alkyl group containing from 1 to 4 carbon atoms and R.sub.4 is an alicyclic group containing from 5 to 6 carbon atoms, PA1 or R.sub.3 and R.sub.4 are two alicyclic groups containing from 5 to 6 carbon atoms, PA1 or R.sub.3 and R.sub.4 form, together with the nitrogen atom to which they are chemically linked, a heterocycloaliphatic group. This process is characterized in that a (meth)acrylic anhydride of formula: ##STR2## is reacted with a diamine of formula: ##STR3## in the presence of a polymerization inhibitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.