Catalyst-free one-pot cascade cyclization: An efficient synthesis of isoindolobenzoxazinones and isoindoloquinazolinones derivatives
作者:Wenzhong Li、Baibai Wan、Ran Shi、Si Chen、Jiazhu Li、Fangzhen Wang、Hexu Niu、Xin-Ming Xu、Wei-Li Wang
DOI:10.1016/j.tet.2021.132571
日期:2022.1
A practical and efficient catalyst-free cascade cyclization reaction of 2-acylbenzoic acids with various amino alcohols or diamines was developed. This protocol provides a powerful and straightforward method for the one-pot synthesis of diverse isoindolobenzoxazinones, isoindoloquinazolinones and their derivatives. The synthetic strategy evades the use of catalyst, shows a broad substrate scope and
开发了一种实用高效的2-酰基苯甲酸与各种氨基醇或二胺的无催化剂级联环化反应。该协议为各种异吲哚苯并恶嗪酮、异吲哚喹唑啉酮及其衍生物的一锅合成提供了一种强大而直接的方法。该合成策略避免了催化剂的使用,显示出广泛的底物范围,并且可以以克级规模进行。