Chemoselective 1,3-dipolar cycloadditions of azomethine ylide with conjugated dienes
作者:Laura C. Blumberg、Brian Costa、Rebecca Goldstein
DOI:10.1016/j.tetlet.2010.12.042
日期:2011.2
pyrrolidines, versatile building blocks for our drug discovery efforts. The 1,3-dipolar cycloaddition between activated olefins and nonstabilized azomethine ylide is a known method for synthesizing pyrrolidines in a stereospecific manner. Steric and electronic effects on the chemoselectivity of the 1,3-dipolar cycloaddition between azomethine ylide and α,β,γ,δ-unsaturated carboxylates have been explored.
描述了合成各种3-羧基-4-乙烯基吡咯烷酮的方法,这是我们药物开发工作的多功能构建基块。活化的烯烃和不稳定的偶氮甲碱内酯之间的1,3-偶极环加成是一种以立体有择的方式合成吡咯烷的已知方法。已探索了对偶氮甲内酯和α,β,γ,δ-不饱和羧酸酯之间的1,3-偶极环加成反应的化学选择性的立体效应和电子效应。