has been demonstrated for the first time to be a highly efficient organocatalyst in the solvent-free synthesis of β-phosphonomalononitriles by a three component condensation of aldehyde, malononitrile and dialkyl phosphite at ambient temperature. The applicability of the same catalyst in the synthesis of diethyl (2-amino-3-cyano-chromene-4-yl) phosphonic acid esters has also been described.
摘要
二乙胺在室温下通过醛、
丙二腈和
亚磷酸二烷基酯的三组分缩合反应,首次被证明是一种高效的有机催化剂,可用于无溶剂合成 β-膦酰基
丙二腈。还描述了相同催化剂在
二乙基(2-
氨基-3-
氰基-色烯-4-基)
膦酸酯的合成中的适用性。