Magnetically recyclable CuFe2O4 catalyst for efficient synthesis of bis(indolyl)methanes using indoles and alcohols under mild condition
作者:Ngoc-Khanh Nguyen、Minh-Tuan Ha、Hoang Yen Bui、Quang Thang Trinh、Bich Ngoc Tran、Van Tuyen Nguyen、Tran Quang Hung、Tuan Thanh Dang、Xuan Hoan Vu
DOI:10.1016/j.catcom.2020.106240
日期:2021.1
Bis(3-indolyl)methanes (BIM) are highly valuable and appear in the core structure of many natural products and pharmacologically active compounds (anticancer, anti-inflammatory, antiobesity, antimetastatic, antimicrobial, etc.). Herein, we have disclosed an air stable and highly efficient CuFe2O4 heterogeneous catalyst for alkylation of indoles with alcohols to give bis(3-indolyl)methanes in very good
双(3-吲哚基)甲烷(BIM)具有很高的价值,并出现在许多天然产物和药理活性化合物(抗癌,抗炎,抗肥胖,抗肿瘤,抗微生物等)的核心结构中。在此,我们已经公开了一种空气稳定且高效的CuFe 2 O 4非均相催化剂,用于用醇将吲哚烷基化以非常好的收率得到双(3-吲哚基)甲烷。已经发现CuFe 2 O 4催化剂被磁循环至少五次而不会损失明显的催化活性。
FeCl<sub>3</sub>·6H<sub>2</sub>O as a Mild Catalyst for Nucleophilic Substitution of Symmetrical Bis(indoyl)methanes
作者:Chayamon Chantana、Jaray Jaratjaroonphong
DOI:10.1021/acs.joc.0c02466
日期:2021.2.5
In this paper, unsymmetrical bis(indolyl)methane (BIM) and 3-alkylindole derivatives are smoothly synthesized from symmetrical BIMs with a variety of nucleophiles including heteroaromatic/aromatic compounds, allylsilane and alkynylsilane. FeCl3·6H2O is found to be a mild and highly effective catalyst for this nucleophilic substitution reaction in which N-methyl-2-phenylindole behaves as a good leaving
Facile access to bis(indolyl)methanes by copper-catalysed alkylation of indoles using alcohols under air
作者:Ngoc-Khanh Nguyen、Duc Long Tran、Tran Quang Hung、Tra My Le、Nguyen Thi Son、Quang Thang Trinh、Tuan Thanh Dang、Peter Langer
DOI:10.1016/j.tetlet.2021.152936
日期:2021.3
of many alkaloid and bioactive compounds (anti-inflammatory, anticancer, antiobesity, antimicrobial, etc.). Herein, we have reported an air stable and convenient Cu(OAc)2 catalyst for alkylation of indoles with alcohols to give bis(3-indolyl)methanes in very good yields.
Pd-catalyzed C–H activation in water: synthesis of bis(indolyl)methanes from indoles and benzyl alcohols
作者:Hidemasa Hikawa、Yuusaku Yokoyama
DOI:10.1039/c2ra21887a
日期:——
A method for the synthesis of bis(indolyl)methanes via palladium-catalyzed domino reactions of indoles with benzyl alcohols was developed. This protocol involves C3-benzylation of indoles and benzylic C–H functionalization in water.
l-Proline catalyzed multicomponent one-pot synthesis of gem-diheteroarylmethane derivatives using facile grinding operation under solvent-free conditions at room temperature
作者:Goutam Brahmachari、Suvankar Das
DOI:10.1039/c3ra44568b
日期:——
straightforward L-proline catalyzedone-potsynthesis of a series of biologically relevant gem-(β-dicarbonyl)arylmethanes has been developed via a three-component reaction between indoles, aldehydes and C–H activated acids by grinding them together under solvent-free conditions at room temperature. Mild reaction conditions, high atom-economy, good yields, and eco-friendliness are some of the salient