Highly Selective Catalyst-Dependent Competitive 1,2-C→C, -O→C, and -N→C Migrations from β-Methylene-β-silyloxy-β-amido-α-diazoacetates
作者:Xichen Xu、Yu Qian、Peter Y. Zavalij、Michael P. Doyle
DOI:10.1021/ja311392m
日期:2013.1.30
Transition-metal catalysts direct 1,2-C→C, -O→C, and -N→C migrations from β-methylene-β-silyloxy-β-amido-α-diazoacetates with high selectivity. The key to achieving this unique display of differential selectivities relies on steric and stereoelectronic control by their catalytically generated metal carbenes.
过渡金属催化剂以高选择性引导 1,2-C→C、-O→C 和 -N→C 从 β-亚甲基-β-甲硅烷氧基-β-酰胺基-α-重氮乙酸盐迁移。实现这种独特的差异选择性显示的关键依赖于其催化生成的金属卡宾的空间和立体电子控制。