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- W2152814698 abstract "The addition of isocyanides to pyridinium salts is studied. The process takes place efficiently when a carboxamido group is present in the 3 position of the pyridine ring. The outcome of the reaction involves the stabilization of the nitrilium intermediate by the amide, which suffers a mild dehydration, leading regioselectively to beta-cyano-gamma-carbamoyl-1,4-dihydropyridines. In this way, a variety of nicotinamide derivatives were carbamoylated. Extension to quinolinium, isoquinolinium, and N-acylpyridinium salts is also reported. [reaction: see text]" @default.
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- W2152814698 date "2007-04-10" @default.
- W2152814698 modified "2023-10-03" @default.
- W2152814698 title "Isocyanide Addition to Pyridinium Salts. Efficient Entry into Substituted Nicotinonitrile Derivatives." @default.
- W2152814698 cites W2949588238 @default.
- W2152814698 doi "https://doi.org/10.1002/chin.200715131" @default.
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