A General Protocol toward Synthesis of 3-Methylindoles Using Acenaphthoimidazolyidene-Ligated Oxazoline Palladacycle
作者:Ruoqian Fan、Haili Wen、Zhen Chen、Yuanzhi Xia、Weiwei Fang
DOI:10.1021/acs.orglett.3c03438
日期:2024.1.12
An efficient catalytic strategy toward the synthesis of N-substituted 3-methylindoles from inactive o-dihaloarenes and N-allylamines was developed by using a 1,3-bis(2,6-diisopropylphenyl)acenaphthoimidazol-2-ylidene (AnIPr)-ligated oxazoline palladacycle. It enabled a very broad substrate scope tolerating different functional groups, electronic properties, and steric bulkiness and afforded desired
通过使用 1,3-双(2,6-二异丙基苯基)苊并咪唑-2-亚基 (AnIPr) 连接,开发了一种从无活性的邻二卤代芳烃和N-烯丙胺合成N-取代的 3-甲基吲哚的有效催化策略恶唑啉环钯。它实现了非常广泛的底物范围,可以耐受不同的官能团、电子特性和空间体积,并以良好到优异的产率提供所需的产品。重要的是,它显示出高产率合成多种生物活性化合物和天然产物关键中间体的巨大潜力。