Abstract
AbstractThe preparation of polycyclic heterocycles with one or more nitrogen atoms and different binding angles by a domino reaction is described. These compounds (4–6, 8a–b) are formed by the reaction of β‐amino ketone hydrochlorides 1 or 2 (Mannich bases) with ketones 3. Especially the synthesis of the terpyridines 8a and 8b in a double domino reaction is very useful (yield 70 and 59%) and opens a route to torands.
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