title: Enaminones in a multicomponent synthesis of 4-aryldihydropyridines for potential applications in photoinduced intramolecular electron-transfer systems.
abstract: An efficient three component reaction with enaminones, primary amines and aldehydes resulted in easy access to 1,4-dihydropyridines with different substituents at the 1-, 3-, 4- and 5-positions. Microwaves improved the reaction yield, reducing also considerably the reaction time and the amount of solvent used. Chiral primary amines gave chiral 1-substituted-1,4-dihydropyridines. The 4-(1-naphthyl) and 4-(phenanthren-9-yl)dihydropyridine derivatives exhibited an interesting photoluminescence behavior, which suggests their potential application as suitable photoinduced intramolecular electron-transfer systems.
authors.affiliation: Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.
authors.forename: Nouria A
authors.initials: NA
authors.lastname: Al-Awadi
authors.forename: Maher R
authors.initials: MR
authors.lastname: Ibrahim
authors.forename: Mohamed H
authors.initials: MH
authors.lastname: Elnagdi
authors.forename: Elizabeth
authors.initials: E
authors.lastname: John
authors.forename: Yehia A
authors.initials: YA
authors.lastname: Ibrahim