Hydrophilic carotenoids: facile syntheses of carotenoid oxime hydrochlorides as long-chain, highly unsaturated cationic (bola)amphiphiles.
Stable cationic carotenoid aggregates - predominantly of the J-type - develop when the hydrochlorides of carotenoid aldoximes and ketoximes are exposed to water. The oxime hydrochlorides are obtained by simple syntheses from commercially available food color carotenoids. Bluish-purple, unstable transient compounds were observed during hydrochlorination performed at liquid nitrogen temperature.
Willibald
Julian
J
Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway.
Rennebaum
Sandra
S
Breukers
Stefanie
S
Abdel Hafez
Shams H
SH
Patel
Anjan
A
Øpstad
Christer L
CL
Schmid
Rudolf
R
Naess
Stine Nalum
SN
Sliwka
Hans-Richard
HR
Partali
Vassilia
V
D002338:Carotenoids / Q000138:chemical synthesis / Q000737:chemistry*; D010091:Oximes / Q000138:chemical synthesis / Q000737:chemistry*; D013500:Surface Tension; D013501:Surface-Active Agents; D014867:Water / Q000737:chemistry
D010091:Oximes; D013501:Surface-Active Agents; D014867:Water; D002338:Carotenoids