Efficient Synthesis of Chiral β-Arylisopropylamines by Using Catalytic Asymmetric Hydrogenation
作者:Jian Chen、Weicheng Zhang、Huiling Geng、Wei Li、Guohua Hou、Aiwen Lei、Xumu Zhang
DOI:10.1002/anie.200805058
日期:2009.1.12
Direct condensation of β‐arylketones with acetamide afforded both Z and E enamides. The Z‐configured substrates underwent hydrogenation with excellent enantioselectivity by using the Rh/tangphos catalytic system (see scheme; tangphos=1,1′‐di‐tert‐butyl‐[2,2′]‐diphospholanyl). The product β‐arylisopropylamines are important precursors to several drugs.
β-芳基酮与乙酰胺直接缩合得到Z和E 烯酰胺。所述ž使用的Rh / tangphos催化体系-构型底物均行氢化具有优异的对映选择性(参见方案; tangphos = 1,1'-二-叔丁基- [2,2'] - diphospholanyl)。产物β-芳基异丙胺是多种药物的重要前体。