Sequential Reductive Amination-Hydrogenolysis: A One-Pot Synthesis of Challenging Chiral Primary Amines
作者:Thomas C. Nugent、Daniela E. Negru、Mohamed El-Shazly、Dan Hu、Abdul Sadiq、Ahtaram Bibi、M. Naveed Umar
DOI:10.1002/adsc.201100250
日期:2011.8
Difficult-to-access chiral primary amines were formed in good to high yield and ee using a rare example of a one-pot synthesis from prochiral ketones (sequential reductive amination-hydrogenloysis). As a highlight we also demonstrate a one-pot reductive amination-hydrogenolysis-reductive amination (five reactions) of ortho-methoxyacetophenone resulting in the chiral diamine 1-(2-methoxyphenyl)ethy
以良好至高产率并且形成难以访问手性伯胺EE使用一锅合成从前手性酮的一个罕见的例子(顺序还原性胺化-hydrogenloysis)。作为亮点,我们还证明了邻甲氧基苯乙酮的一锅还原胺化-氢解还原还原胺化(五个反应)产生了手性二胺1-(2-甲氧基苯基)乙基-(2-吡啶基甲基)-胺(4)( 58%的总收率,> 99%ee),这是一种用于水性对映选择性羟醛反应的新型有机催化剂。