EP 0830339 A1 19980325 - PROCESS FOR PREPARING AMIDES OF N-ALKYL POLYHYDROXYALKYL AMINES
Title (en)
PROCESS FOR PREPARING AMIDES OF N-ALKYL POLYHYDROXYALKYL AMINES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON N-ALKYL-POLYHYDROXYALKYLAMINEN
Title (fr)
PROCEDE D'OBTENTION D'AMIDES DE N-ALKYL POLYHYDROXYALKYLAMINES
Publication
Application
Priority
- US 9607124 W 19960517
- US 47208395 A 19950607
- US 47485795 A 19950607
- US 48380295 A 19950607
Abstract (en)
[origin: WO9640619A1] N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98 % transmittance at 460 nm in organic hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amine amides with good color. The N-alkyl polyhydroxyamines can be purified by crystallization, and/or subjected to reductive bleaching, to provide superior color. The reaction is preferably carried out at low temperature for short periods of time and with low catalyst levels to minimize formation of cyclic products. The resulting amide product can be further purified by treatment with anionic and cationic exchange resins to remove soap and amine impurities. The anionic ion exchange resin can be readily regenerated by acidifying it followed by washing with an organic solvent.
IPC 1-7
IPC 8 full level
B01J 39/04 (2006.01); B01J 41/04 (2006.01); B01J 49/00 (2006.01); C07C 213/10 (2006.01); C07C 231/02 (2006.01); C07C 231/24 (2006.01); C07C 233/18 (2006.01); C07C 233/20 (2006.01); C11D 1/52 (2006.01)
CPC (source: EP)
C07C 213/10 (2013.01); C07C 231/02 (2013.01); C07C 231/24 (2013.01)
Citation (search report)
See references of WO 9640619A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9640619 A1 19961219; CA 2223981 A1 19961219; EP 0830339 A1 19980325; JP H11509526 A 19990824
DOCDB simple family (application)
US 9607124 W 19960517; CA 2223981 A 19960517; EP 96914677 A 19960517; JP 50059497 A 19960517