Formamide Synthesis through Borinic Acid Catalysed Transamidation under Mild Conditions
作者:Tharwat Mohy El Dine、David Evans、Jacques Rouden、Jérôme Blanchet
DOI:10.1002/chem.201600234
日期:2016.4.18
A highly efficient and mild transamidation of amides with amines co‐catalysed by borinic acid and acetic acid has been reported. A wide range of functionalised formamides was synthesized in excellent yields, including important chiral α‐amino acid derivatives, with minor racemisation being observed. Experiments suggested that the reaction rely on a cooperative catalysis involving an enhanced boron‐derived
据报道,酰胺与由硼酸和乙酸共同催化的胺发生轻度高效酰胺化。以优异的产率合成了多种功能化甲酰胺,包括重要的手性α-氨基酸衍生物,并且观察到了较小的消旋作用。实验表明,该反应依赖于协同催化作用,该催化作用包括增强的硼衍生的路易斯酸度而不是提高的乙酸布朗斯台德酸度。