A dual-metal-catalyzed asymmetric [3+2] annulation of 2-vinyloxiranes with the challenging nucleophilic dipoles (imino esters) was achieved. It was successfully applied to the stereodivergent synthesis of structurally rigid spirocyclic framework. A series of spiro compounds bearing a pyrroline and an olefin were synthesized in an enantio- and diastereodivergent manner.
实现了具有挑战性的亲核偶极子(亚
氨基酯)的 2-
乙烯基环氧乙烷的双
金属催化不对称 [3+2] 环化。它成功地应用于结构刚性螺环骨架的立体发散合成。以对映和非对映发散方式合成了一系列带有
吡咯啉和烯烃的
螺环化合物。