One-pot, three-component reactions of structurally diverse salicylaldehydes with malononitrile (or
ethylcyanoacetate) and diethyl (or dimethyl) phosphate are carried out in the presence of nano-rods ZnO as an efficient
catalyst for the synthesis of biologically interesting 2-amino-4H-chromen-4-yl phosphonate derivatives. The value of this
method lies in its mild and environmentally benign reaction, simple procedure, good yields, and ease of handling.
在纳米棒 ZnO 作为高效催化剂的存在下,将结构多样的
水杨醛与
丙二腈(或
氰乙酸乙酯)和
磷酸二乙酯(或
磷酸二甲酯)进行一锅三组分反应,合成了具有
生物学意义的 2-amino-4H-chromen-4-yl phosphonate 衍
生物。该方法的价值在于其反应温和、对环境无害、程序简单、收率高且易于操作。