Ethylenediamine diacetate-catalyzed three-component reaction for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones and their spirooxindole derivatives
作者:Manchala Narasimhulu、Yong Rok Lee
DOI:10.1016/j.tet.2011.08.018
日期:2011.12
Ethylenediamine diacetate (EDDA)-catalyzed one-pot syntheses of biologically interesting 2,3-dihydroquinazolin-4(1H)-ones and their spirooxindole derivatives from isatoic anhydride, amines, and benzaldehydes or isatins via a three-component condensation in aqueous media have been described. This method is of great value because of high yields and ease of handling. (C) 2011 Elsevier Ltd. All rights reserved.
Convenient synthesis and evaluation of antioxidant property of functionalized spiro indolinone-dihydroquinazolinones
作者:Tania Kundu、Animesh Pramanik
DOI:10.1016/j.bioorg.2022.105830
日期:2022.7
In the present study an efficient synthetic pathway has been developed for the library synthesis of diversely functionalized spiro indolinone-dihydroquinazolinones from easily available isatins and 2-aminobenzamides by acid catalyzed condensation at 70 °C in ethanol. The outcome of the ROS scavenging analysis over the synthesized spiro compounds displays significant variation in their respective antioxidant