Highly efficient synthesis of α-aminophosphonates catalyzed by hafnium(IV) chloride
作者:Xiao-Chuan Li、Shan-Shan Gong、De-Yun Zeng、Yue-Hai You、Qi Sun
DOI:10.1016/j.tetlet.2016.03.033
日期:2016.4
A highly efficientone-pot method for the synthesis of a variety of α-aminophosphonatesvia the one-pot three-component reaction of aldehyde, amine, and phosphite has been developed using only 2 mol % HfCl4 as the catalyst. The NMR evidence strongly indicated the catalytic roles of Hf(IV) on the activation of aldehyde, phosphite, and imine intermediate.
A facile and highly efficient route to α-amino phosphonates via three-component reactions catalyzed by Mg(ClO<sub>4</sub>)<sub>2</sub>or molecular iodine
作者:Jie Wu、Wei Sun、Hong-Guang Xia、Xiaoyu Sun
DOI:10.1039/b602536f
日期:——
Three-component reactions of aldehydes, amines, and diethyl phosphite catalyzed by Mg(ClO4)2 or molecular iodine afforded the corresponding α-amino phosphonates in excellent yields under mild reaction conditions.