Efficient synthesis of aryl hydrazines using copper-catalyzed cross-coupling of aryl halides with hydrazine in PEG-400
作者:Junmin Chen、Yimin Zhang、Wenyan Hao、Rongli Zhang、Fei Yi
DOI:10.1016/j.tet.2012.11.014
日期:2013.1
An efficient and convenient method for the synthesis of aryl hydrazines is described via copper-catalyzed cross-coupling of aryl halides with aqueous hydrazine in PEG-400. This protocol is applicable to both electron-deficient and electron-rich aryl iodides and bromides, and even to sterically hindered substrates, giving aryl hydrazines in good to excellent yields.
通过铜催化芳基卤化物与肼水溶液在PEG-400中的交叉偶联,描述了一种有效且方便的芳基肼合成方法。该方案适用于缺电子和富电子的芳基碘化物和溴化物,甚至适用于空间受阻的底物,芳基肼的收率良好至极佳。