Direct Measurement of the Rates of Ionic Dissociation by Dynamic NMR Technique. Dissociation of α-Chlorodibenzyl Sulfides
作者:Kazutaka Arai、Michinori Oki
DOI:10.1246/bcsj.50.175
日期:1977.1
substituent effects on the ease of the exchange process of protons in p,p′-disubstituted α-chlorodibenzyl sulfides indicate that the process occurs with the dissociation of the compounds into benzylic cations and chloride ion. It is possible to measure the rates of ionic dissocation by observing the change in the line shape of signals in 1H NMR spectra. The scope of the method is discussed.
通过动态核磁共振观察了α-氯二苄基硫化物的非对映质子的交换过程。溶剂的极性效应和取代基效应对 p,p'-二取代 α-氯二苄基硫化物中质子交换过程的容易程度表明,该过程发生在化合物解离成苄基阳离子和氯离子的过程中。可以通过观察 1H NMR 光谱中信号线形的变化来测量离子解离速率。讨论了该方法的范围。