environmentally benign method has been developed for the synthesis of α-aminophosphonates. One-pot, three-component reaction of aldehyds, amines, and trialkylphosphite in the presence of silica-supported sodium hydrogen sulfate (NaHSO4-SiO2) as an inexpensive and reusable catalyst under solvent-free conditions at 80 °C affords the corresponding α-aminophosphonates in good yields and short reaction times. GRAPHICAL
摘要 已开发出一种简单、高效且环境友好的合成α-氨基膦酸酯的方法。在二氧化硅负载的硫酸氢钠 (NaHSO4-SiO2) 作为廉价且可重复使用的催化剂存在下,在 80 °C 无溶剂条件下,醛、胺和亚磷酸三烷基酯的一锅三组分反应得到相应的 α-氨基膦酸盐,收率高,反应时间短。图形概要