作者:Britta M. Dahl、Otto Dahl、Stuart Trippett
DOI:10.1039/p19810002239
日期:——
been prepared and converted into five-co-ordinate phosphoranes by addition of 4,5-dimethyl-o-benzoquinone or 4,4′-dimethylbenzil, or condensation with 4,5-dimethylpyrocatechol or pinacol. The variable-temperature n.m.r. spectra of these phosphoranes are discussed. In these systems phenylamino- and dimethylamino-groups have similar apicophilicities and are less apicophilic than hydrogen by some 4–5 kcal
从锂开始ö -lithiobenzyl醇盐和二氯膦,一系列P取代的3 ħ -2-1苯并oxaphospholes已经制备并通过加入转化成五坐标膦-4,5-二甲基- ö苯醌或4,4'-二甲基苯甲醚,或与4,5-二甲基邻苯二酚或频哪醇缩合。讨论了这些磷烷的可变温度NMR光谱。在这些系统中,苯基氨基和二甲基氨基具有类似的亲嗜性,并且比氢的亲嗜性差约4–5 kcal mol –1。