Magnetic resonance in chemistry

High resolution 1H NMR studies of cyclic N??nitrosamines

MJ Milewska, T Poloński

Index: Milewska, M. J.; Polonski, T. Magnetic Resonance in Chemistry, 1994 , vol. 32, # 10 p. 631 - 635

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Citation Number: 10

Abstract

Abstract Molecular modeling by molecular mechanics (MM2) calculations were used to predict conformational preferences of cyclic N-nitrosamines. The results were compared with 1 H NMR data. The observed geminal coupling constants 2 J were considerably stronger for syn than for anti α-methylene protons and thus appear to be very useful for configurational predictions. The long-range 4 J couplings across the nitrogen atom were observed directly ...