Microwave-assisted three component synthesis of novel bis-fused quinazolin-8(4<i>H</i>)-ones linked to aliphatic or aromatic spacer<i>via</i>amide linkages
作者:Ibrahim M. Z. Fares、Ahmed E. M. Mekky、Ahmed H. M. Elwahy、Ismail A. Abdelhamid
DOI:10.1080/00397911.2020.1725575
日期:2020.3.18
Abstract A novel series of bis(tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ones) and bis(tetrahydrobenzo[4,5]imidazo[2,1-b]quinazolinones) containing amide linkages were regionselectively prepared via a three-component reaction of bis(aldehydes) with dimedone and 3-amino-1,2,4-triazole (or 2-aminobenzimidazole) under conventional heating as well as under microwave irradiation. Graphical Abstract
摘要 含有酰胺的双(四氢[1,2,4]三唑并[5,1-b]喹唑啉-8-酮)和双(四氢苯并[4,5]咪唑并[2,1-b]喹唑啉酮)新系列在常规加热和微波辐射下,通过双(醛)与二甲酮和 3-氨基-1,2,4-三唑(或 2-氨基苯并咪唑)的三组分反应区域选择性地制备连接。图形概要