Substrate‐ and Catalyst‐Controlled C−H Bond Activation/Annulation for Construction of Pyrido[2,3,4‐<i>de</i>]quinazolinones and Indolo[1,2‐<i>c</i>]quinazolinones
作者:Xinjiao Hou、Run Wang、Jianhui Zhou、Yuan Li、Jiyuan Li、Hong Liu、Dechuan Wang、Yu Zhou
DOI:10.1002/adsc.202300897
日期:2024.1.9
polycyclic heterocycles, namely pyrido[2,3,4-de]quinazolinones and indolo[1,2-c]quinazolinones. The most notable advantage of this method is its ability to rapidly generate two different polycyclic scaffolds via a simple C−H activation and subsequent cyclization cascade pathway. Specifically, sulfoxonium ylides played a crucial role in both transformations, serving as a two-carbon synthon and a one-carbon
采用底物和催化剂控制的合成策略构建两种不同类型的稠合多环杂环,即吡啶并[2,3,4- de ]喹唑啉酮和吲哚[1,2- c ]喹唑啉酮。该方法最显着的优点是能够通过简单的 CH 激活和随后的环化级联途径快速生成两种不同的多环支架。具体而言,亚砜叶立德在这两种转化中都发挥了至关重要的作用,作为双碳合成子和一碳合成子,分别通过[4+2]和[4+1]环化途径独立构建两个稠合多环支架。