group on the aryl sp2 carbon of 2-aryloxyquinoline-3-carbaldehyde using a palladium catalyst for the first time. Interestingly, this C–H acetoxylation reaction is highly chemo- and site-selective. By modifying the reaction conditions, mono or di ortho-C–H acetoxylation products have been synthesized selectively with good yields and with good functional group tolerance.
2-芳氧基
喹啉因具有多种
生物活性而闻名。在本报告中,我们首次开发了一种使用
钯催化剂在2-芳氧基
喹啉-3-
甲醛的芳基sp 2碳上引入乙酰氧基官能团的新方案。有趣的是,这种 C–H 乙酰氧基化反应具有高度
化学选择性和位点选择性。通过改变反应条件,选择性地合成了单或双邻-C-H乙酰氧基化产物,具有良好的产率和良好的官能团耐受性。