Rh(III)-Catalyzed C–H Cyclization of Arylnitrones with Diazo Compounds: Access to 3-Carboxylate Substituted<i>N</i>-Hydroxyindoles
作者:Yazhou Li、Jian Li、Xiaowei Wu、Yu Zhou、Hong Liu
DOI:10.1021/acs.joc.7b01393
日期:2017.9.1
Recently, N-hydroxyindole derivatives have received much interest because of their unique structural motif and various biological activities. In this study, we report the first example of a Rh(III)-catalyzed reaction of arylnitrones with α-diazoketoesters or α-diazodiketones to produce N-hydroxyindole derivatives. Intriguingly, we could build the N-hydroxyindole scaffold by blocking the cleavage of
近来,N-羟基吲哚衍生物由于其独特的结构基序和各种生物活性而受到了广泛的关注。在这项研究中,我们报告的第一个例子是Rh(III)催化的芳基硝酮与α-二氮酮酸酯或α-二氮二酮生成N-羟基吲哚衍生物的反应。有趣的是,我们可以通过选择性地阻断N-O键的裂解来构建N-羟基吲哚骨架,同时优先消除α-二氮酮酸酯或α-二氮二酮的酰基。