Umsetzung der Titelverbindung 1 bzw. deren 1 ,ZDihydroderivat 2 mit Dimethylformamiddimethylacetal ergibt die Enaminoketone 5a und 6a. Die durch Arninaustauschreaktionen zuganglichen Derivate 5b-n (6b-n) bzw. 7a-I (84) erweisen sich hinsichtlich Reaktivitat und Stereochemie als interessant.
Enaminones Derived from Pmmerer's KetonePummerer's ketone (1) and its 1 ,2-dihydro derivative 2 react with dimethylformamide dimethylacetal to yield the enaminones 5n and 6a. Amine exchange reactions lead to the compounds 5b-n (6b-n) and 7 4 @ e l ) , which show interesting reactivities and stereochemical properties. **) Herrn Prof. Dr. K. Jentzsch mit den besten Wiinschen zum 70. Geburtstag gewidmet. 0365-6233/63~544 S (n.50/0 (0 Verlag Chcmie GmbH, Weinhcim 1983
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