Regio‐ and Stereoselective Hydrophosphorylation of Ynamides: A Facile Approach to (
<i>Z</i>
)‐
<i>β</i>
‐Phosphor‐Enamides
作者:Zhiyuan Peng、Zhenming Zhang、Xianzhu Zeng、Yongliang Tu、Junfeng Zhao
DOI:10.1002/adsc.201900734
日期:2019.10.8
The first trans‐selective β‐hydrophosphorylation of ynamides, which provides a facile approach to (Z)‐β‐phosphor‐enamide derivatives in moderate to excellent yields and with excellent regio‐ and stereoselectivity, is described. This transition‐metal‐free reaction is featured with operationally simple procedure, mild reaction conditions, readily available starting materials, broad substrate scope and
第一反式-选择性β ynamides的-hydrophosphorylation,它提供了一个简便的方法来(Ž) - β在中度至良好的产率和具有优异的区域选择性和立体选择性-phosphor烯酰胺衍生物,进行说明。这种无过渡金属的反应具有操作简单,反应条件温和,原料易得,底物范围广和官能团耐受性强等特点。注意,(Z)-β-磷(V )-酰胺可以通过相应的膦衍生物的氧化或乙酰胺与二苯基膦氧化物的直接β-氢磷酸化来制备。此外,(Z)-β-磷(V )-酰胺的顺反异构化很容易实现,以提供相应的(E)-β-磷(V)-酰胺。这一有利功能使您可以从同一原料制备(Z)-β-磷(V )-酰胺以及(E)-β-磷(V)-酰胺。