Synthesis and Dynamic 13 C NMR Study of New System Containing Polarised Carbon–Carbon Double Bonds from Reaction between Cyclohexyl Isocyanide and Ethyl Propiolate in the Presence of N,N′ -Dimethylbarbituric Acid
Free accessResearch articleFirst published online February, 2006
Synthesis and Dynamic 13 C NMR Study of New System Containing Polarised Carbon–Carbon Double Bonds from Reaction between Cyclohexyl Isocyanide and Ethyl Propiolate in the Presence of N,N′ -Dimethylbarbituric Acid
The adduct produced in the reaction between cyclohexyl isocyanide and ethyl acetylenecarboxylate was trapped by N, N′-dimethylbarbituric acid. Dynamic NMR effects were observed in the NMR spectra of these compounds and were attributed to restricted rotation around the alkyl-nitrogen single bonds and the polarised carbon–carbon double bond.
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