Organic Magnetic Resonance p. 274 - 275 (1982)
Update date:2022-08-16
Topics:
Wells, C. H. J.
The free energy of activation for rotation about the exocyclic C-N bond of the dimethylamino group of some 6-substituted 2-amino-4-(N,N-dimethylamino)pyrimidines has been determined using 1H NMR line shape analysis.The results are discussed in terms of the relative electron-withdrawing and electron-releasing effects of the substituents.
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