首次研究了4,7-二氢吲哚与芳基醛作为亲电伙伴的亲电取代反应,然后进行氧化步骤以生成2,2'-双(吲哚基)芳基甲烷。该反应在操作简单且廉价的过程中使用多种底物在吲哚的2,2'-位提供了区域选择性。据我们所知,这是以无取代基方式获得的2,2'-双(吲哚基)芳基甲烷的第一组实例。还报道了一种从二吡咯甲烷到相应的2-苄基吲哚的简便方法。另外,将2,2'-双(吲哚基)芳基甲烷转化为5,7-二氢吲哚并[2,3- b ]咔唑。
首次研究了4,7-二氢吲哚与芳基醛作为亲电伙伴的亲电取代反应,然后进行氧化步骤以生成2,2'-双(吲哚基)芳基甲烷。该反应在操作简单且廉价的过程中使用多种底物在吲哚的2,2'-位提供了区域选择性。据我们所知,这是以无取代基方式获得的2,2'-双(吲哚基)芳基甲烷的第一组实例。还报道了一种从二吡咯甲烷到相应的2-苄基吲哚的简便方法。另外,将2,2'-双(吲哚基)芳基甲烷转化为5,7-二氢吲哚并[2,3- b ]咔唑。
Synthesis and application of silica phenyl sulfonic acid as a solid acid heterogeneous catalyst for one-pot synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazoles and bis(indolyl)methanes in water
作者:Hojat Veisi、Alireza Sedrpoushan、Mohammad Ali Zolfigol、Farajollah Mohanazadeh
DOI:10.1002/jhet.765
日期:2011.11
Silica phenyl sulfonicacid (SPSA) was prepared and effectively used in the one‐pot synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles from o‐phenylenediamine with aldehydes in water in the presence of tetrabutyl ammonium bromide with good to high yield. Also, SPSA was used as a catalyst for the synthesis of bis(indolyl)methanes in water. J. Heterocyclic Chem., (2011).
La<sub>2</sub>O<sub>3</sub>/Reduced Graphene Oxide Nanocomposite: A Highly Efficient, Reusable Heterogeneous Catalyst for the Synthesis of Biologically Important Bis(indolyl)methanes Under Solvent Free Conditions
作者:Navin Kumar Mogha、Sugat Kirti、Dhanraj T Masram
DOI:10.1166/jnn.2017.13441
日期:2017.4.1
Synthesis and characterization of Lanthanum Oxide-reduced grapheneoxide (La₂O₃/RGO) nanocomposite and its application as heterogeneous, reusable catalyst has been reported in this article. Biologically important molecules bis(indolyl)methanes are synthesized in mild reaction condition with excellent yield undersolventfree condition. Catalyst was reused for four times without any significant changes
本文报道了氧化镧还原的氧化石墨烯(La 2 O 3 / RGO)纳米复合材料的合成,表征及其在多相,可重复使用的催化剂中的应用。具有生物重要性的分子双(吲哚基)甲烷是在温和的反应条件下合成的,在无溶剂条件下产率很高。催化剂重复使用了四次,但收率没有明显变化。可重复使用性,绿色合成和对环境无害的性质使La 2 O 3 / RGO成为合成生物学上重要的双(吲哚基)甲烷的最佳催化剂之一。