Canadian Journal of Chemistry

On the use of nuclear magnetic resonance for the detection, estimation, and characterization of N-methyl groups

JCN Ma, EW Warnhoff

文献索引：Verardo; Giumanini; Strazzolini Synthetic Communications, 1994 , vol. 24, # 5 p. 609 - 627

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被引用次数: 83

摘要

... Volume 43 (1965) 1849 ... VOL. ... amine is better solvated (chiefly by hydrogen bonding of the NH protons), the positive charge is more dispersed (23); therefore, the smaller effective positive charge on nitrogen will have a smaller deshielding effect on the N-methyl protons (24). ...