Výsledky vyhledávání - "Kokil Saikia"

Stabilized Fe3O4 magnetic nanoparticles into nanopores of modified montmorillonite clay: a highly efficient catalyst for the Baeyer–Villiger oxidation under solvent free conditions

Autor: Kokil Saikia, Dipak Kumar Dutta, Lakshi Saikia, Pallab Kumar Saikia, Bibek Jyoti Borah, Podma Pollov Sarmah

Publikováno v: Green Chemistry. 18:2843-2850

In situ generation of Fe3O4 magnetic nanoparticles (Fe3O4@AT-mont.) into the nanopores of modified montmorillonite (AT-mont.) clay has been carried out. Modification of the montmorillonite was done by acid (4 M HCl) activation under controlled condit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::142cee589df3433b1e1e26c8c99ceb03
https://doi.org/10.1039/c5gc02668g

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Palladium complexes of heterobidentate ligands: Active catalysts for direct acylation of aryl halides with aldehydes via C(sp 2 )-H activation

Autor: Kokil Saikia, Dipak Kumar Dutta

Publikováno v: Journal of Molecular Catalysis A: Chemical. 408:20-25

Heterobidentate P-S donor ligands [P-S = {2-(methylthio) phenyl}diphenylphosphine (a) and {2-((methylthio) methyl) phenyl}diphenylphosphine (b)], and their palladium complexes of the type [Pdη2-(P-S)Cl2] (1a, 1b) have been synthesised and characteri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45e88ad29c8abd1c9dfd29444e7666ed
https://doi.org/10.1016/j.molcata.2015.07.007

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Efficient one-pot synthesis of propargylamines catalysed by gold nanocrystals stabilized on montmorillonite

Autor: Subrat Jyoti Borah, Dipak Kumar Dutta, Kokil Saikia, Bibek Jyoti Borah

Publikováno v: Catal. Sci. Technol.. 4:4001-4009

Size selective Au0-nanoparticles were generated in situ in the nanopores of modified montmorillonite. The modification of montmorillonite was carried out with HCl under controlled conditions for generating nanopores (less than 8 nm) in the matrix and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26e2dac883dd9571ff1bca7ea6daabfc
https://doi.org/10.1039/c4cy00666f

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Efficient Suzuki–Miyaura coupling reaction in water: Stabilized Pdo-Montmorillonite clay composites catalyzed reaction

Autor: Dipak Kumar Dutta, Subrat Jyoti Borah, Kokil Saikia, Bibek Jyoti Borah

Publikováno v: Applied Catalysis A: General. 469:350-356

The Pdo-nanoparticles, generated into the nanopores of modified Montmorillonite clay, were evaluated for catalytic performance for the Suzuki–Miyaura cross coupling reactions. The modification of Montmorillonite clay was carried out by activating w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2281b8227a8a665ed5e16c52a1928621
https://doi.org/10.1016/j.apcata.2013.10.018

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Synthesis of cationic rhodium(I) and iridium(I) carbonyl complexes of tetradentate P(CH2CH2PPh2)3 ligand: An implication of steric inhibition and catalytic hydroformylation reaction

Autor: Dipak Kumar Dutta, Biswajit Deb, Kokil Saikia

Publikováno v: Journal of Molecular Catalysis A: Chemical. 381:188-193

New cationic carbonyl complexes of the type [M(CO)L]Cl (1) [M = Rh (a) and Ir (b); L = P(CH2CH2PPh2)3] have been synthesized and characterized by various spectroscopic techniques including the single crystal X-ray diffraction. Both the complexes crys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46d9a7027964aedbdfc89c75356eadcc
https://doi.org/10.1016/j.molcata.2013.10.016

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Pdo-nanoparticles stabilized by tripodal phosphine based ligands and their catalytic activities on carboncarbon bond formation reactions

Autor: Kokil Saikia, Bibek Jyoti Borah, Nabin C. Barua, Partha Pratim Saikia, Dipak Kumar Dutta

Publikováno v: Catalysis Today. 198:174-183

Tripodal ligands, 1,1,1-tris(diphenylphosphinomethyl)ethane [CH 3 C(CH 2 PPh 2 ) 3 ] [ P 3 ] and 1,1,1-tris(diphenylphosphinomethyl)ethane trisulphide [CH 3 C(CH 2 P(S)Ph 2 ) 3 ] [ P 3 S 3 ] have been introduced to stabilize Pd o -nanoparticles havin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1cff0ea1f204efd56e9669e04d822a72
https://doi.org/10.1016/j.cattod.2012.03.083

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Palladium complexes of P,P and P,S type bidentate ligands: Implication in Suzuki–Miyaura cross-coupling reaction

Autor: Podma Pollov Sarmah, Bibek Jyoti Borah, Dipak Kumar Dutta, Biswajit Deb, Kokil Saikia

Publikováno v: Journal of Organometallic Chemistry. 696:4293-4297

New palladium complexes of the type [PdCl2(η2–P∩P)] (1a,1b) and [PdCl2(η2–P∩S)] (1c,1d) have been synthesised by the reaction of PdCl2 with P,P and P,S type bidentate ligands in 1:1 mol ratio, where, P∩P = 9,9–dimethyl-4,5-bis(diphenylp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08f4c75167390af83d7e989e5341ea38
https://doi.org/10.1016/j.jorganchem.2011.10.001

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Rhodium(I) carbonyl complexes of tetradentate chalcogen functionalized phosphines, [P′(X)(CH2CH2P(X)Ph2)3] {X = O, S, Se}: Synthesis, reactivity and catalytic carbonylation reaction

Autor: Amy L. Fuller, Biswajit Deb, J. Derek Woollins, Kokil Saikia, Alexandra M. Z. Slawin, Podma Pollov Sarmah, Rebecca A. M. Randall, Dipak Kumar Dutta

Publikováno v: Journal of Organometallic Chemistry. 696:3279-3283

The reaction of [Rh(CO)2Cl]2 with 0.5 mol equivalent of the ligands [P′(X)(CH2–CH2P(X)Ph2)3](P′P3X4) {where X = O(a), S(b) and Se(c)} affords tetranuclear complexes of the type [Rh4(CO)8Cl4(P′P3X4)] (1a–1c). The complexes 1a–1c have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bfe0cb9b773c347d63b06c25cd2aa7b
https://doi.org/10.1016/j.jorganchem.2011.07.014

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Synthesis, reactivities and catalytic carbonylation of rhodium(I) carbonyl complexes containing isomeric acetylpyridine ligands

Autor: Dipak Kumar Dutta, Kokil Saikia, Podma Pollov Sarmah, Prodip P. Khound, Bibek Jyoti Borah, Biswajit Deb

Publikováno v: Inorganica Chimica Acta. 370:117-121

[Rh(CO)2Cl]2 reacts with two mole equivalent of 2-acetylpyridine (a), 3-acetylpyridine (b) and 4-acetylpyridine (c) to afford chelate [Rh(CO)Cl(g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a17682d037d8a189759e24f2ed053e0e
https://doi.org/10.1016/j.ica.2011.01.024

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ChemInform Abstract: Palladium Complexes of P,P and P,S Type Bidentate Ligands: Implication in Suzuki-Miyaura Cross-Coupling Reaction

Autor: Biswajit Deb, Kokil Saikia, Dipak Kumar Dutta, Bibek Jyoti Borah, Podma Pollov Sarmah

Publikováno v: ChemInform. 43

Among palladium complexes (I) and their monosulfide analogues (II), the former show higher efficacy in the coupling reactions of bromides (III) with boronic acids (IV).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25ae508b9a6810eeb3e8d583de976d55
https://doi.org/10.1002/chin.201218090

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