First ever observation of the intermediate of phosphonium salt and ylide hydrolysis: P-hydroxytetraorganophosphorane
作者:Peter A. Byrne、Yannick Ortin、Declan G. Gilheany
DOI:10.1039/c4cc08644a
日期:——
long-postulated intermediate in phosphonium salt and ylide hydrolysis, has been observed and characterised by low temperature NMR, finally definitively establishing its involvement in these reactions. The results require modification of the previously accepted mechanism for ylide hydrolysis: P-hydroxytetraorganophosphorane is generated directly by 4-centre reaction of ylide with water.
对-羟基四有机磷烷,在phospho盐和叶立德水解中被长期假定的中间体,已经被观察到并通过低温NMR进行了表征,最终确定了它参与了这些反应。结果需要修改以前接受的内酯水解机理:对羟基四有机磷盐直接与内酯发生4中心反应生成P-羟基四有机磷烷。