SCHEDULED MAINTENANCE
Dynamic 1H NMR spectroscopy has been used to explore the influence of substituents on the internal rotation of the amino group in a series of twelve 2-(N,N-dialkylamino)chromones; the rotational barriers (ΔG‡) in CDCl3 and CD2Cl2 were found to range from 38 to 52 kJ mol-1.
P. T.Kaye Kaye and I. D. I. Ramaite, J. Chem. Res. (S), 1997, 414 DOI: 10.1039/A702801F
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