Stereoselective addition of dialkyl phosphites to di-salicylaldimines bearing the (R,R)-1,2-diaminocyclohexane moiety
作者:Jarosław Lewkowski、Paweł Tokarz、Tadeusz Lis、Katarzyna Ślepokura
DOI:10.1016/j.tet.2013.12.042
日期:2014.1
The addition of dialkyl phosphites to the azomethine bond of N,N′-disalicylidene-1,2-diaminocyclohexane imines, catalyzed by sodium hydride led to bis-aminophosphonates in a high diastereoselectivity. One of the bis-aminophosphonates was analyzed by X-ray diffraction. Another bis-aminophosphonate was converted to a bis-aminophosphonic acid and the structure was studied by X-ray diffraction. Addition
在氢化钠的催化下,将亚磷酸二烷基酯加到N,N'-二水杨基-1,2-二氨基环己烷亚胺的偶氮甲亚氨酸键上可得到高非对映选择性的双氨基膦酸酯。通过X射线衍射分析了一种双氨基膦酸酯。将另一种双氨基膦酸酯转化为双氨基膦酸,并通过X射线衍射研究其结构。将亚磷酸酯加到二亚胺中得到氨基膦酸酯,这也通过X射线衍射进行了研究。建议对非对映选择性进行解释。