The inclusion complex of isatoic anhydride with β-cyclodextrin was formed as a result of intermolecular interaction between isatoic anhydride with β-CD. The inclusion complex was confirmed by IR spectroscopy, X-ray diffraction and DSC studies. From application of complex, herein we have described a simple and efficient protocol for synthesis of 2, 3-dihydroquinazoline-4(1H)-one derivatives by one pot condensation of isatoic anhydride, ammonium acetate or amine and aldehyde using β-CD as a supramolecular catalyst in aqueous media.
异
氟酸酐与β-
环糊精的包合物是由于异
氟酸酐与β-CD之间的分子间相互作用而形成的。通过红外光谱、X射线衍射和
DSC研究确认了包合物的存在。基于这一复杂体系,我们在此描述了一种简单有效的合成2,3-二氢
喹唑啉-4(1H)-酮衍
生物的协议,该方法通过在
水相中使用β-CD作为超分子催化剂,将异
氟酸酐、
醋酸铵或胺与醛进行一锅缩合反应。