Silver Acetate Catalysed Asymmetric1,3-Dipolar Cycloadditions of Imines and Chiral Acrylamides
作者:Miklós Nyerges、David Bendell、Andrea Arany、David E. Hibbs、Simon J. Coles、Michael B. Hursthouse、Paul W. Groundwater、Otto Meth-Cohn
DOI:10.1055/s-2003-39325
日期:——
N-Metallated azomethine ylides 5 were generated by the reaction of arylidene glycine imines 1 with AgOAc and triethylamine. These azomethine ylides undergo cycloaddition to chiral acrylamides 2 with excellent diastereoselectivity. The configuration of two of the cycloadducts (3a 1 and 3c 1 ) has been confirmed by X-ray crystallography.
N-金属化的偶氮甲碱叶立德5是通过芳亚甲基甘氨酸亚胺1与AgOAc和三乙胺反应生成的。这些偶氮甲碱叶立德以优异的非对映选择性与手性丙烯酰胺2进行环加成反应。其中两个环加成产物(3a¹和3c¹)的构型已通过X射线晶体学得到确认。