作者:R.P. Gupta、J.S. Pizey、K. Symeonides
DOI:10.1016/0040-4020(76)85197-6
日期:1976.1
A number of isopropyl-β-ketosulphinyl chlorides has been synthesised and their PMR spectra studied. Magnetic non-equivalence of the alpha gem-dimethyl groups is, in general, observed together with, in certain cases, magnetic non-equivalence of suitably positioned methylene and methine H atoms. This effect has been found to be temperature and solvent dependent and is probably due to both the intrinsic
已经合成了许多异丙基-β-酮亚磺酰氯并研究了它们的PMR光谱。所述的磁性非等价的α-宝石-二甲基基团,则在一般情况下,观察到一起,在某些情况下,适当地定位的亚甲基和次甲基的H原子的磁性非等价。已经发现该效应是温度和溶剂依赖性的,并且可能是由于基团的固有非对映异构性和旋转构象异构体的存在。