作者:Uli Kazmaier、Rigobert Pick、Michael Bauer、Christina Hebach
DOI:10.1055/s-2005-863722
日期:——
If ammonia is used as amine component in Ugi reactions, the desired peptide sometimes is obtained only as the minor product or in traces. Side reactions such as six-component couplings are responsible for this observation. These side reactions can be suppressed or favoured depending on the reaction conditions used.
如果在Ugi反应中使用氨作为胺组分,所期望的肽有时仅以次要产物的形式或微量获得。六组分耦合等副反应是导致这一观察结果的原因。这些副反应的抑制或促进取决于所使用的反应条件。