Nickel-katalysierte Synthese von α-Nornicotin-Derivaten. Vorläufige Mitteilung

Nickel-catalysed Synthesis of α-Nornicotines Schiff's bases 1 and butadiene generally co-oligomerize on nickel catalysts to yield octatrienyl-substituted amines 2 and octadienyl-substituted imines 3 . Schiff's bases 4 and 5 , on the other hand, react with 1, 3-dienes to give new 3+2]-cycloadducts 6 . In addition to the appropriately functionalized α-nornicotine derivatives some higher oligomers are formed.