A quaternary ammonium salt [H-dabco][AcO]: as a recyclable and highly efficient catalyst for the one-pot synthesis of β-phosphonomalonates
作者:Ya-Qin Yu、Da-Zhen Xu
DOI:10.1039/c5ra02743h
日期:——
A simple, green and highly efficient approach for the one-potthree-componentsynthesis of β-phosphonomalonates has been developed. In the presence of the quaternary ammonium salt catalysts, the β-phosphonomalonates were obtained in excellent yields within short times viatandem Knoevenagel–phospha-Michael reaction. The reaction of aldehydes/ketones, active methylene compounds, and diethyl phosphite