Copper(II)-Catalyzed Synthesis of Benzo[<i>f</i>]pyrido[1,2-<i>a</i>]indole-6,11-dione Derivatives via Naphthoquinone Difunctionalization Reaction
作者:Yun Liu、Jin-Wei Sun
DOI:10.1021/jo2023312
日期:2012.1.20
and pyridine (or isoquinoline) via sp2–C–H difunctionalization of naphthoquinone followed by intramolecular cyclization and oxidative aromatization. In an attempt to expand the reaction scope and to help clarify the reaction mechanism, 1,3-dicarbonyl compounds are used in place of acyl bromides to take part in this reaction, and the benzo[f]pyrido[1,2-a]indole-6,11-diones derivatives are also obtained
苯并[ f ]吡啶基[1,2 - a ]吲哚-6,11-二酮通过铜(II)催化的酰基溴,1,4-萘醌和吡啶的三组分反应(或异喹啉)通过萘醌的sp 2 -CH双官能化,然后进行分子内环化和氧化芳构化。为了扩大反应范围并澄清反应机理,使用1,3-二羰基化合物代替酰基溴参与了该反应,并使用了苯并[ f ]吡啶基[1,2- a ]还以优异的产率获得了吲哚-6,11-二酮衍生物。
Synthesis of benzo[f]pyrido[1,2-a]indole-6,11-diones via the I2-promoted reactions of methyl ketones with pyridines and 1,4-naphthoquinone
作者:Yun Liu、Hui Xu、Hui Wu
DOI:10.1016/j.tetlet.2021.153235
日期:2021.8
synthesis of benzo[f]pyrido[1,2-a]indole-6,11-diones has been achieved via the I2-promoted reactions of methyl ketones, pyridines and 1,4-naphthoquinone. In this reaction, either aromatic or aliphatic methyl ketones proceeded well. The advantages of this method include a broad substrate scope, metal-free reaction conditions, and high atom- and step-economy.
苯并[ f ]吡啶并[1,2 - a ]吲哚-6,11-二酮的有效合成已通过甲基酮、吡啶和1,4-萘醌的I 2促进反应实现。在该反应中,芳香族或脂肪族甲基酮都进行得很好。该方法的优点包括底物范围广、反应条件无金属、原子经济和步骤经济性高。