3-Aminocrotonitrile → t-butyl 2-[N-(5-cyano-1,4-dihydro-2,6-dimethyi-4-(3-nitro-phenyl)pyridine-3-carbonyl)amino]-acetate

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Reaktionsschritte

A toluene solution containing 348 mg (1 mmol) of t-butyl 2-[N-[3-oxo-2-(3-nitrobenzylidene)butanoyl]amino]-acetate and 123 mg (1.5 mmol) of 3-aminocrotonitrile was refluxed for 4 hours. The reaction mixture was chromatographed on a silica gel column for purification, whereby 407 mg (98.7%) of t-butyl 2-[N-(5-cyano-1,4-dihydro-2,6-dimethyl-4-(3-nitro-phenyl)pyridine-3-carbonyl)amino]-acetate was obtained.

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