作者:G.J. Karabatsos、R.A. Taller
DOI:10.1016/s0040-4020(01)92600-6
日期:1968.1
Configurations and conformations were assigned to several aldehyde and ketone N,N-dimethyldrazones from analyses of their 60-Mc NMR spectra. Aldehyde, but not ketone, N,N-dimethylhydrazones exist exclusively in the syn configuration. Interpretation of the vicinal spin-spin coupling constants, JH1Hα, led to the conclusion that II and III are the minimum energy conformations of these compounds. The ΔH0
通过对其60-Mc NMR光谱的分析,将构型和构象分配给了几个醛和酮N,N-二甲基dra。醛,但不是酮,N,N- dimethylhydrazones仅仅在存在顺式构型。邻位自旋-自旋耦合常数的解释,Ĵ ħ 1 ħ α,导致这样的结论:II和III是这些化合物的最低能量构象。的ΔH 0被发现的II⇋III值成比这N-ME亚胺(Z = Me)的,但比这些肟的更少正(Z = OH)和它们的O-甲基醚(Z = Me)的更积极。