Nanomole-Scale Assignment of Configuration for Primary Amines Using a Kinetic Resolution Strategy
作者:Shawn M. Miller、Renzo A. Samame、Scott D. Rychnovsky
DOI:10.1021/ja310620c
日期:2012.12.19
The absolute configurations of primary amines were assigned using a kinetic resolution strategy with Mioskowski's enantioselective 1-(R,R) and 2-(S,S) acylating agents. A simple mnemonic was developed to determine the configuration. A pseudoenantiomeric pair of reagents, 1-(R,R) and 2-(S,S)-d(3), was prepared and used to assay primary amines on a micromolar scale. The ESI-MS readout of the resulting
使用 Mioskowski 的对映选择性 1-(R,R) 和 2-(S,S) 酰化剂的动力学拆分策略指定伯胺的绝对构型。开发了一个简单的助记符来确定配置。制备了一对假对映体试剂 1-(R,R) 和 2-(S,S)-d(3),并用于在微摩尔级测定伯胺。所得乙酰胺产物的 ESI-MS 读数再现了动力学实验中的选择性因素。该方法可用于胺的混合物,并已用小至 50 nmol 的胺样品进行了验证。