Azoulay Stéphane, Manabe Kei, Kobayashi Shü
Graduate School of Pharmaceutical Sciences, University of Tokyo, HFRE Division, ERATO, Japan Science and Technology Agency, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Org Lett. 2005 Oct 13;7(21):4593-5. doi: 10.1021/ol051546z.
[reaction: see text] An operationally simple and environmentally benign protocol for the catalytic asymmetric ring opening of meso-epoxides with aromatic amines has been developed. The reactions proceeded smoothly in the presence of 1 mol % of Sc(OSO3C12H25)3 and 1.2 mol % of a chiral bipyridine ligand in water to afford beta-amino alcohols in high yields with excellent enantioselectivities.
[反应:见正文] 已开发出一种操作简单且环境友好的方法,用于芳香胺催化外消旋环氧化物的不对称开环反应。在1 mol%的Sc(OSO₃C₁₂H₂₅)₃和1.2 mol%的手性联吡啶配体存在下,反应在水中顺利进行,以高收率和优异的对映选择性得到β-氨基醇。