Three-component reaction discovery enabled by mass spectrometry of self-assembled monolayers
作者:Timothy J. Montavon、Jing Li、Jaime R. Cabrera-Pardo、Milan Mrksich、Sergey A. Kozmin
DOI:10.1038/nchem.1212
日期:2012.1
Multicomponent reactions are employed extensively in many areas of organic chemistry. Despite significant progress, the discovery of such enabling transformations remains challenging. Here, we present the development of a parallel, label-free reaction-discovery platform that can be used in the identification of new multicomponent transformations. Our approach is based on parallel mass spectrometric screening of interfacial chemical reactions on arrays of self-assembled monolayers. This strategy enabled the identification of a simple organic phosphine that can catalyse a previously unknown condensation of siloxyalkynes, aldehydes and amines to produce 3-hydroxyamides with high efficiency and diastereoselectivity. The reaction was further optimized using solution-phase methods. A general reaction-discovery platform has been used for identification of a new multicomponent transformation. The approach entails rapid analysis of interfacial chemical reactions on arrays of self-assembled monolayers using mass spectrometry. This enabled identification of a simple organic phosphine that catalyses a previously unknown condensation of siloxy alkynes, aldehydes and amines.
多组分反应广泛应用于有机化学的许多领域。尽管取得了重大进展,但发现这种有利的转化仍具有挑战性。在此,我们介绍了一种并行、无标记反应发现平台的开发情况,该平台可用于鉴定新的多组分转化。我们的方法基于对自组装单层阵列上的界面化学反应进行平行质谱筛选。通过这种策略,我们发现了一种简单的有机膦,它可以催化硅氧炔、醛和胺的一种之前未知的缩合反应,以高效率和非对映选择性生成 3-羟基酰胺。利用溶液相方法对该反应进行了进一步优化。利用通用反应发现平台确定了一种新的多组分转化。这种方法需要利用质谱法快速分析自组装单层阵列上的界面化学反应。这样就能鉴定出一种简单的有机膦,它能催化一种以前未知的硅氧基炔、醛和胺的缩合反应。