Asymmetric Hydrogenation of α-Primary and Secondary Amino Ketones: Efficient Asymmetric Syntheses of (−)-Arbutamine and (−)-Denopamine
作者:Gao Shang、Duan Liu、Scott E. Allen、Qin Yang、Xumu Zhang
DOI:10.1002/chem.200700594
日期:2007.9.17
Two beta-receptor agonists (-)-denopamine and (-)-arbutamine were prepared in good yields and enantioselectivities by asymmetric hydrogenation of unprotected amino ketones for the first time by using Rh catalysts bearing electron-donating phosphine ligands. A series of alpha-primary and secondary amino ketones were synthesized and hydrogenated to produce various 1,2-amino alcohols in good yields and
通过使用带有给电子膦配体的Rh催化剂进行不保护的氨基酮的不对称氢化,以高收率和对映选择性制备了两种β受体激动剂(-)-地巴胺和(-)-arbutamine。合成了一系列的α-伯氨基和仲氨基酮并进行氢化,以高收率和良好的对映选择性生产出各种1,2-氨基醇。这种Rh电子给体的膦催化的不对称氢化反应代表了手性氨基醇不对称合成的最有希望和最方便的方法之一。