Synthesis of 3-Aminoquinazolinones via a SnCl<sub>2</sub>-Mediated ANRORC-like Reductive Rearrangement of 1,3,4-Oxadiazoles
作者:Mohamed Elagawany、Lingaiah Maram、Bahaa Elgendy
DOI:10.1021/acs.joc.3c01973
日期:2023.12.15
Herein, we developed a new SnCl2-mediated ANRORC (addition of nucleophile, ring-opening, and ring-closure)-like rearrangement for the synthesis of 3-amino-2-substituted-quinazolin-4(3H)-one from 2-(2-nitrophenyl)-5-substituted-1,3,4-oxadiazole. The new method is solvent-dependent and features the use of a green solvent system (i.e., ethanol/water), high yields, and simple workup. The reduced product
在此,我们开发了一种新的SnCl 2介导的ANRORC(亲核试剂加成、开环和闭环)类重排,用于合成3-氨基-2-取代-喹唑啉-4(3 H )-one 2-(2-硝基苯基)-5-取代-1,3,4-恶二唑。新方法依赖于溶剂,具有使用绿色溶剂系统(即乙醇/水)、高产率和简单后处理的特点。将溶剂改为乙腈即可独家合成还原产物。