1993
DOI: 10.1002/ardp.19933260606
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Nitroketenaminale, 11. Mitt.: Zur Umsetzung von Enonen mit N,N′‐cyclisch alkylierten Nitroketenaminalen

Abstract: Nitroketeneaminals, XI'): Reaction of Enones with N&"-Cyclically Alkylated NitroketeneaminalsReaction of enones 2a-d with nitroketeneaminals 3, 4, and 5 in refluxing ethanol yields the Michael adduct 8a and the bicyclic carbinolamines 9, 10, and 11. Dehydratisation of 9a-d in acidic medium leads to heteroanellated 1,4-dihydropyridines 12a-d. By means of 'H-NMR-data the relative configuration of 10d is determined.Die Umsetzung der Enone 2a-d mit den Nitroketenaminalen 3, 4 und 5 in siedendem Ethanol ergibt das … Show more

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Cited by 12 publications
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