Modified montmorillonite clay catalyzed regioselective ring opening of epoxide with amines and alcohols under solvent free conditions

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题名:	Modified montmorillonite clay catalyzed regioselective ring opening of epoxide with amines and alcohols under solvent free conditions
作者:	戴帕克;Bhuyan, Diganta;Saikia, Lakshi;Dutta, Dipak Kumar
贡献者:	資訊電機學院電機工程學系
关键词:	Alcohols;Amines;Catalysis;Catalysts;Catalytic activity;Chemistry;Clay (material);Conversion;Exact sciences and technology;General and physical chemistry;Montmorillonite;Ring opening;Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
日期:	2014-01-01
上传时间:	2026-04-23 14:26:20 (UTC+8)
出版者:	Elsevier;Kidlington: Elsevier
摘要:	摘要： Modification of Montmorillonite by acid treatment depletes the layered structure and generates micro- and mesopores. The catalytic activity of naturally occurring Montmorillonite clay modified by acid treatment is reported for the reactions of epoxides with nucleophiles such as amines and alcohols at ambient temperature and solvent-free condition. The solid acid catalyst of the present study is reusable and exhibits significantly higher catalytic activities than known catalysts for the opening of the oxirane ring with nitrogen (aromatic as well as aliphatic amines) and oxygen (aromatic as well as aliphatic alcohols). A wide range of beta -amino alcohols and beta -alkoxy alcohols are synthesized with high epoxide conversion of excellent regioselectivity. The modified catalyst is recycled up to five times without significant loss in conversion and selectivity. 出版者： Kidlington: Elsevier 出版日期： 2014-10-01 出處： Applied catalysis. A, General, 2014-10, Vol.487, p.195-201 資源來源： Elsevier ScienceDirect Journals 版權： 2015 INIST-CNRS 識別號： ISSN: 0926-860X 識別號： EISSN: 1873-3875 識別號： DOI: 10.1016/j.apcata.2014.09.020
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