Synthesis of highly substituted spiropyrrolidines via 1,3-dipolar cycloaddition reaction of N-metalated azomethine ylides
作者:G Subramaniyan、R Raghunathan
DOI:10.1016/s0040-4020(01)00140-5
日期:2001.4
s undergo regioselective 1,3-dipolar cycloaddition reactions with N-metalated azomethine ylides derived from aromatic aldimines of glycine methyl ester in the presence of silver acetate and triethylamine to give spiropyrrolidine derivatives in good yield. X-Ray crystal structure analysis of one of the products confirms the structure and regiochemistry of the cycloadditions.
在乙酸银和三乙胺的存在下,3-亚芳基-4-苯并二氢吡喃与衍生自甘氨酸甲酯的芳香醛亚胺的N-金属化的甲亚胺基团进行区域选择性的1,3-偶极环加成反应,以高收率得到螺吡咯烷衍生物。其中一种产品的X射线晶体结构分析证实了环加成物的结构和区域化学。