Rh(III)-Catalyzed Oxidative Annulation of Isoquinolones with Diazoketoesters Featuring an <i>in Situ</i> Deacylation: Synthesis of Isoindoloisoquinolones and Their Transformation to Rosettacin Analogues
作者:Shenghai Guo、Lincong Sun、Fang Wang、Xinying Zhang、Xuesen Fan
DOI:10.1021/acs.joc.8b01982
日期:2018.10.5
A novel and practical procedure for the preparation of isoindolo[2,1-b]isoquinoline-7-carboxylate derivatives through a Rh(III)-catalyzed oxidative [4 + 1] cycloaddition of isoquinolones with diazoketoesters followed by an in situ deacylation reaction is disclosed. Intriguingly, the title compounds could be easily converted into isoindolo[2,1-b]isoquinolin-5(7H)-ones via de-esterification, which are
通过Rh(III)催化的异喹诺酮与重氮酮酸酯的氧化[4 +1]环加成,然后进行原位脱酰反应,制备异吲哚并[2,1 - b ]异喹啉-7-羧酸酯衍生物的新颖实用的方法是披露。有趣的是,标题化合物可以很容易地通过去酯化反应转变为异吲哚并[2,1 - b ]异喹啉-5(7 H)-,这是一种罗塞他汀类似物,经常在各种天然生物碱和合成药物分子中发现。