作者:Florian de Nanteuil、Eloisa Serrano、Daniele Perrotta、Jerome Waser
DOI:10.1021/ja5024578
日期:2014.4.30
asymmetric [3 + 2] annulation reaction of aminocyclopropanes with both enol ethers and aldehydes. Using a Cu catalyst and a commercially available bisoxazoline ligand, cyclopentyl- and tetrahydrofurylamines were obtained in 69-99% yield and up to a 98:2 enantiomeric ratio using the same reaction conditions. The method gives access to important enantio-enriched nitrogen building blocks for the synthesis of bioactive
我们报告了氨基环丙烷与烯醇醚和醛的动态动力学不对称 [3 + 2] 环化反应的第一个例子。使用铜催化剂和市售的双恶唑啉配体,使用相同的反应条件,以 69-99% 的产率和高达 98:2 的对映体比获得环戊基胺和四氢呋喃胺。该方法提供了用于合成生物活性化合物的重要的富含对映体的氮结构单元。