Synthesis of Indenoquinolinones and 2-Substituted Quinolines <i>via</i> [4 + 2] Cycloaddition Reaction
作者:Gang Yang、Lin Yao、Guojiang Mao、Guo-Jun Deng、Fuhong Xiao
DOI:10.1021/acs.joc.2c01939
日期:2022.11.4
metal-free protocol for the synthesis of indenoquinolinones and 2-substituted quinolines via [4 + 2] cycloaddition reaction using readily available 2-aminobenzaldehydes and ketones as starting materials. Different quinoline derivatives can be selectively synthesized by changing the type of ketones. O2 and dimethyl sulfoxide (DMSO) as co-oxidants play an important role in the synthesis of indenoquinolinones
我们已经报道了一种无金属方案,用于使用现成的 2-氨基苯甲醛和酮作为起始材料,通过[4 + 2] 环加成反应合成茚并喹啉酮和 2-取代喹啉。通过改变酮类的种类,可以选择性地合成不同的喹啉衍生物。O 2和二甲基亚砜(DMSO)作为助氧化剂在茚并喹啉酮的合成中起着重要作用。这种缩合/氧化策略涉及 C-N、C-C 和 C-O 键的形成,具有产率高和底物范围广的优点。