Highly Regio- and Stereoselective Synthesis of Alkylidenecyclopropanes via Ru(II)-Pheox Catalyzed Asymmetric Inter- and Intramolecular Cyclopropanation of Allenes
作者:Soda Chanthamath、Hao Wei Chua、Seiya Kimura、Kazutaka Shibatomi、Seiji Iwasa
DOI:10.1021/ol5014944
日期:2014.6.20
An efficient protocol for the synthesis of optically active alkylidenecyclopropanes (ACPs) via the Ru(II)-Pheox catalyzed asymmetric cyclopropanation of allenes has been established. This catalytic system proceeded with high regioselectivity to give the ACP products in high yield with high diastereoselectivity (up to 99/1) and enantioselectivity (up to 99% ee).
已经建立了通过Ru(II)-Pheox催化的丙二烯不对称环丙烷化合成旋光性亚烷基环丙烷(ACP)的有效协议。该催化体系以高区域选择性进行,以高收率得到具有高非对映选择性(高达99/1)和对映选择性(高达99%ee)的ACP产物。