Nuclear Magnetic Resonance Spectra. Nitrogen Inversion Rates of N-Substituted Aziridines (Ethylenimines)<sup>1</sup>
作者:Albert T. Bottini、John D. Roberts
DOI:10.1021/ja01552a048
日期:1958.10
far obtained indicate that substituted aziridines with molecular asymmetry due to trivalent nitrogen are likely only to be resolvable into reasonably stable optical antipodes at temperatures below - 50o. The nitrogen inversion rates of N-substituted azetidines (trimethylenimines) and larger-ring imines appear to be too great to be measurable by nuclear magnetic resonance techniques at temperatures above-77o