The Experts below are selected from a list of 15777 Experts worldwide ranked by ideXlab platform
Hossein Tavakol - One of the best experts on this subject based on the ideXlab platform.
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one pot synthesis of quinoline derivatives using choline chloride tin ii chloride deep eutectic solvent as a Green Catalyst
Journal of Molecular Liquids, 2016Co-Authors: Dana Shahabi, Hossein TavakolAbstract:Abstract In this work, various quinoline derivatives were prepared efficiently through a one-pot, three component synthesis using choline chloride/tin(II) chloride (ChCl·2SnCl2) deep eutectic solvent (DES) as a Green Catalyst. The procedure is free of using toxic solvents or Catalyst and it could be categorized as a Green method. In this procedure, aniline derivatives, aromatic aldehydes and enolizable aldehydes were mixed in the presence of DES that plays both roles of solvent and the reaction Catalyst. Using this methodology, quinoline derivatives were synthesized simply at 60 °C in 2–3 h with high yields (54–97%). All products were purified by chromatography and recrystallization in ethanol. The employed DES have been recycled 4 time without important loss of its activity.
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One-pot synthesis of quinoline derivatives using choline chloride/tin (II) chloride deep eutectic solvent as a Green Catalyst
Journal of Molecular Liquids, 2016Co-Authors: Dana Shahabi, Hossein TavakolAbstract:Abstract In this work, various quinoline derivatives were prepared efficiently through a one-pot, three component synthesis using choline chloride/tin(II) chloride (ChCl·2SnCl2) deep eutectic solvent (DES) as a Green Catalyst. The procedure is free of using toxic solvents or Catalyst and it could be categorized as a Green method. In this procedure, aniline derivatives, aromatic aldehydes and enolizable aldehydes were mixed in the presence of DES that plays both roles of solvent and the reaction Catalyst. Using this methodology, quinoline derivatives were synthesized simply at 60 °C in 2–3 h with high yields (54–97%). All products were purified by chromatography and recrystallization in ethanol. The employed DES have been recycled 4 time without important loss of its activity.
Krishnacharya G. Akamanchi - One of the best experts on this subject based on the ideXlab platform.
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Sulfated Tungstate: A Green Catalyst for Strecker Reaction.
ChemInform, 2012Co-Authors: Sagar P. Pathare, Krishnacharya G. AkamanchiAbstract:The process can be applied to the reaction of various aldehydes and ketones with amines under solvent-free conditions at room temperature to form a broad spectrum of functionalized α-aminonitriles.
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Sulfated tungstate: a Green Catalyst for Strecker reaction
Tetrahedron Letters, 2012Co-Authors: Sagar P. Pathare, Krishnacharya G. AkamanchiAbstract:A straightforward, mild, efficient, and general method has been developed for the synthesis of α-aminonitriles via Strecker reaction starting from aldehydes or ketones, amines, and trimethylsilyl cyanide in the presence of sulfated tungstate as a heterogeneous mild solid acid Catalyst at room temperature and solvent free condition. The developed method has been successfully applied for the synthesis of a wide range of α-aminonitriles with variable functionality.
Sadegh Rostamnia - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and Catalytic Application of Mixed Valence Iron (Fe II /Fe III )-Based OMS-MIL-100(Fe) as an Efficient Green Catalyst for the aza-Michael Reaction
Catalysis Letters, 2018Co-Authors: Sadegh Rostamnia, Hassan AlamgholilooAbstract:In the present study, open metal site iron-based MOF [MIL-100(Fe)], by a solvothermal method with polygonal morphology, are synthesised and then applied as a heterogeneous Green Catalyst for aza-Michael addition of various amines with α, β-unsaturated compounds. The MIL-100(Fe) was found to be efficient, selective, Green and heterogeneous Catalyst for the aza-Michael reaction. The proposed Catalyst has better recyclability and can be reused six times without apparent loss of activity.
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water dispersed magnetic nanoparticles h2o dmnps of γ fe2o3 for multicomponent coupling reactions a Green single pot technique for the synthesis of tetrahydro 4h chromenes and hexahydroquinoline carboxylates
Tetrahedron Letters, 2013Co-Authors: Sadegh Rostamnia, Ayat Nuri, Hongchuan Xin, Ali Pourjavadi, Seyed Hassan HosseiniAbstract:Water dispersed magnetic nanoparticles (DMNPs) of gamma-Fe2O3 represent a simple and Green Catalyst for the rapid three-component synthesis of tetrahydro-4H-chromene and hexahydroquinoline carboxylate skeletons via single-pot domino Knoevenagel-Michael-cyclization reactions. (C) 2013 Elsevier Ltd. All rights reserved.
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nanomagnetically modified sulfuric acid γ fe2o3 sio2 oso3h an efficient fast and reusable Green Catalyst for the ugi like groebke blackburn bienayme three component reaction under solvent free conditions
Tetrahedron Letters, 2012Co-Authors: Sadegh Rostamnia, Kamran Lamei, Mohsen Mohammadquli, Mehdi Sheykhan, Akbar HeydariAbstract:Abstract Superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe 2 O 3 @SiO 2 -OSO 3 H) represent a straightforward and Green Catalyst for the rapid synthesis of aminoimidazopyridine skeletons via the Ugi-like Groebke-Blackburn-Bienayme three-component reaction. The γ-Fe 2 O 3 @SiO 2 -OSO 3 H Catalyst could be recovered and reused in five reaction cycles, giving a total TON = 453. The products were prepared under solvent-free conditions without any additives.
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Nanomagnetically modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H): an efficient, fast, and reusable Green Catalyst for the Ugi-like Groebke-Blackburn-Bienaymé three-component reaction under solvent-free conditions
Tetrahedron Letters, 2012Co-Authors: Sadegh Rostamnia, Kamran Lamei, Mohsen Mohammadquli, Mehdi Sheykhan, Akbar HeydariAbstract:Abstract Superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H) represent a straightforward and Green Catalyst for the rapid synthesis of aminoimidazopyridine skeletons via the Ugi-like Groebke-Blackburn-Bienayme three-component reaction. The γ-Fe2O3@SiO2-OSO3H Catalyst could be recovered and reused in five reaction cycles, giving a total TON = 453. The products were prepared under solvent-free conditions without any additives.
Akbar Heydari - One of the best experts on this subject based on the ideXlab platform.
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Guanidine Acetic Acid Functionalized Magnetic Nanoparticles: Recoverable Green Catalyst for Transamidation
ChemistrySelect, 2016Co-Authors: Maryam Kazemi Miraki, Marzban Arefi, Meghdad Karimi, Kobra Azizi, Sepideh Abbasi, Elahe. Yazdani, Akbar HeydariAbstract:In the presence of a catalytic amount of Fe3O4-Guanidine acetic acid (GAA) nanoparticles, efficient transamidation of several amides with various amines is described under solvent-free conditions. Fe3O4-Guanidine acetic acid nanoparticles provide the first example of a magnetically recoverable organoCatalyst for transamidation in the highest catalytic activity. The Catalyst could be simply recycled with the assistance of an external magnet and reused for six runs without significant loss of its catalytic activity.
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nanomagnetically modified sulfuric acid γ fe2o3 sio2 oso3h an efficient fast and reusable Green Catalyst for the ugi like groebke blackburn bienayme three component reaction under solvent free conditions
Tetrahedron Letters, 2012Co-Authors: Sadegh Rostamnia, Kamran Lamei, Mohsen Mohammadquli, Mehdi Sheykhan, Akbar HeydariAbstract:Abstract Superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe 2 O 3 @SiO 2 -OSO 3 H) represent a straightforward and Green Catalyst for the rapid synthesis of aminoimidazopyridine skeletons via the Ugi-like Groebke-Blackburn-Bienayme three-component reaction. The γ-Fe 2 O 3 @SiO 2 -OSO 3 H Catalyst could be recovered and reused in five reaction cycles, giving a total TON = 453. The products were prepared under solvent-free conditions without any additives.
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Nanomagnetically modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H): an efficient, fast, and reusable Green Catalyst for the Ugi-like Groebke-Blackburn-Bienaymé three-component reaction under solvent-free conditions
Tetrahedron Letters, 2012Co-Authors: Sadegh Rostamnia, Kamran Lamei, Mohsen Mohammadquli, Mehdi Sheykhan, Akbar HeydariAbstract:Abstract Superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H) represent a straightforward and Green Catalyst for the rapid synthesis of aminoimidazopyridine skeletons via the Ugi-like Groebke-Blackburn-Bienayme three-component reaction. The γ-Fe2O3@SiO2-OSO3H Catalyst could be recovered and reused in five reaction cycles, giving a total TON = 453. The products were prepared under solvent-free conditions without any additives.
Dana Shahabi - One of the best experts on this subject based on the ideXlab platform.
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one pot synthesis of quinoline derivatives using choline chloride tin ii chloride deep eutectic solvent as a Green Catalyst
Journal of Molecular Liquids, 2016Co-Authors: Dana Shahabi, Hossein TavakolAbstract:Abstract In this work, various quinoline derivatives were prepared efficiently through a one-pot, three component synthesis using choline chloride/tin(II) chloride (ChCl·2SnCl2) deep eutectic solvent (DES) as a Green Catalyst. The procedure is free of using toxic solvents or Catalyst and it could be categorized as a Green method. In this procedure, aniline derivatives, aromatic aldehydes and enolizable aldehydes were mixed in the presence of DES that plays both roles of solvent and the reaction Catalyst. Using this methodology, quinoline derivatives were synthesized simply at 60 °C in 2–3 h with high yields (54–97%). All products were purified by chromatography and recrystallization in ethanol. The employed DES have been recycled 4 time without important loss of its activity.
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One-pot synthesis of quinoline derivatives using choline chloride/tin (II) chloride deep eutectic solvent as a Green Catalyst
Journal of Molecular Liquids, 2016Co-Authors: Dana Shahabi, Hossein TavakolAbstract:Abstract In this work, various quinoline derivatives were prepared efficiently through a one-pot, three component synthesis using choline chloride/tin(II) chloride (ChCl·2SnCl2) deep eutectic solvent (DES) as a Green Catalyst. The procedure is free of using toxic solvents or Catalyst and it could be categorized as a Green method. In this procedure, aniline derivatives, aromatic aldehydes and enolizable aldehydes were mixed in the presence of DES that plays both roles of solvent and the reaction Catalyst. Using this methodology, quinoline derivatives were synthesized simply at 60 °C in 2–3 h with high yields (54–97%). All products were purified by chromatography and recrystallization in ethanol. The employed DES have been recycled 4 time without important loss of its activity.
