NMR-Spektroskopie an Heterocyclen, 6. Mitt. Favorskii-Umlagerung von α-Brom-β-methoxy-ketonen bei der Imidazol-Cyclisierung in flüssigem Ammoniak

6533b823fe1ef96bd127fde5

RESEARCH PRODUCT

NMR-Spektroskopie an Heterocyclen, 6. Mitt. Favorskii-Umlagerung von α-Brom-β-methoxy-ketonen bei der Imidazol-Cyclisierung in flüssigem Ammoniak

Hans-joachim Sattler Hans-gerd Lennartz Walter Schunack

subject

chemistry.chemical_compound Chemistry Drug Discovery Polymer chemistry Liquid ammonia Pharmaceutical Science Imidazole Nuclear magnetic resonance spectroscopy Ethyl ester Favorskii rearrangement

description

Bei der Imidazolsynthese aus α-Bromketonen und Formiminoethylester in flussigem Ammoniak werden α-alkylsubstituierte Buttersaure-Amide als Nebenprodukte erhalten, deren Entstehen einer Favorskii-Umlagerung zugeschrieben wird. Die isolierten Verbindungen wurden NMR-spektroskopisch untersucht. NMR Spectroscopy of Heterocycles. VI: Favorskii Rearrangement of α-Bromo-β-methoxy Ketones During Imidazole Cyclisation in Liquid Ammonia. During imidazole synthesis with α-bromo ketones and formiminic ethyl ester in liquid ammonia α-alkylbutyric amides were obtained as by-products. Their formation is attributed to a Favorskii rearrangement. The compounds were investigated by NMR spectroscopy.

year	journal	country	edition	language
1979-01-01	Archiv der Pharmazie

https://doi.org/10.1002/ardp.19793120206

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