Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Kabirun Ahmed"'
1
A chitosan supported peroxidovanadium(V) complex: Synthesis, characterization and application as an eco-compatible heterogeneous catalyst for selective sulfoxidation in water
Autor: Hiya Talukdar, Mitu Sharma, Gangutri Saikia, Sandhya Rani Gogoi, Nashreen S. Islam, Kabirun Ahmed
Publikováno v: Polyhedron. 159:192-205
Anchoring of peroxidovanadium(V) (pV) species to chitosan, a natural chelating polymer, afforded a new and structurally defined immobilized complex, VO(O2)2(NH2)-chitosan (ChpV) which was comprehensively characterized by elemental analysis (CHN, ICP-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::395b75cf5899b05c43fc7c15ca36b689
https://doi.org/10.1016/j.poly.2018.11.028
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2
Polymer immobilized tantalum(v)–amino acid complexes as selective and recyclable heterogeneous catalysts for oxidation of olefins and sulfides with aqueous H2O2
Autor: Nashreen S. Islam, Gangutri Saikia, Chandrasee Rajkhowa, Hiya Talukdar, Mitu Sharma, Kabirun Ahmed
Publikováno v: New Journal of Chemistry. 43:17251-17266
Polymer supported heterogeneous peroxotantalum(V) catalysts were prepared by anchoring Ta(V)-diperoxo species to chloromethylated poly(styrene–divinylbenzene) resin functionalized with amino acids asparagine (L-Asn) and arginine (L-Arg). The struct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1556d55ff3da58d99d8e6a9617fdb2a9
https://doi.org/10.1039/c9nj04180j
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4
A sustainable approach towards solventless organic oxidations catalyzed by polymer immobilized Nb(V)-peroxido compounds with H2O2 as oxidant
Autor: Sandhya Rani Gogoi, Nashreen S. Islam, Gangutri Saikia, Sazida Yasmin Sultana, Hiya Talukdar, Kabirun Ahmed
Publikováno v: Molecular Catalysis. 516:111988
New heterogeneous catalysts comprising of peroxidoniobium(V) complexes immobilized on amino acid grafted cross-linked poly(styrene-divinylbenzene) resin has been developed. Results of FTIR, Raman, NMR, XPS, XRD, EDX, SEM, BET, TGA, and elemental anal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f4ed4e949301ddd7832453e8cf374ed
https://doi.org/10.1016/j.mcat.2021.111988
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5
Niobium(V) peroxo α-amino acid complexes: Synthesis, stability and kinetics of inhibition of acid phosphatase activity
Autor: Sandhya Rani Gogoi, Kabirun Ahmed, Rituparna Duarah, Nashreen S. Islam, Gangutri Saikia
Publikováno v: Polyhedron. 121:142-154
The present work was undertaken with an objective to investigate some biologically relevant attributes of peroxoniobium (pNb) derivatives, using a set of heteroleptic pNb compounds containing biogenic species as co-ligands. New peroxoniobium complexe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::585f1514932a68b01cfa0c9d710be3e5
https://doi.org/10.1016/j.poly.2016.09.057
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6
Peroxomolybdate supported on water soluble polymers as efficient catalysts for green and selective sulfoxidation in aqueous medium
Autor: Mitu Sharma, Gangutri Saikia, Sandhya Rani Gogoi, Srewashi Das, Nashreen S. Islam, Kabirun Ahmed, Jeena Jyoti Boruah
Publikováno v: Journal of Molecular Catalysis A: Chemical. 425:21-30
Peroxomolybdenum(VI) species immobilized on linear water soluble polymers formulated as, [MoO(O 2 ) 2 (sulfonate)]–PS [ PS = poly(sodium vinyl sulfonate)] ( PSM o) and[Mo 2 O 2 (O 2 ) 4 (carboxylate)]–PA [ PA = poly(sodium acrylate)]( PAMo ) serv
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a66a9234918c20ac673d869db3812e90
https://doi.org/10.1016/j.molcata.2016.09.026
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7
Macromolecular metal complexes of NbV as recoverable catalysts for selective and eco-compatible oxidation of organic sulfides in water
Autor: Sandhya Rani Gogoi, Kabirun Ahmed, Gangutri Saikia, Nashreen S. Islam
Department of Chemical Sciences, Tezpur University, Napaam, Tezpur-784 028, Assam, India E-mail: nsi@tezu.ernet.in, nashreen.islam@rediffmail.com Manuscript received 01 July 2018, accepted 18 July 2018 The activity of a pair of peroxoniobium(V) speci
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::272195efb7f7e3500cc064f9632706ce
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8
Peroxo Compounds of Vanadium(V) and Niobium(V) as Potent Inhibitors of Calcineurin Activity towards RII-Phosphopeptide
Autor: T. Ramasarma, Gayatri Ramakrishna, Mitu Sharma, Babul Moni Ram, Kabirun Ahmed, Sandhya Rani Gogoi, Jeena Jyoti Boruah, Gangutri Saikia, Nashreen S. Islam, Pakiza Begum
Publikováno v: IndraStra Global.
Calcineurin (CN) is a major calmodulin binding serine/threonine phosphatase which plays a crucial role in numerous mammalian signal transduction pathways. Calcineurin inhibitors represent a valuable tool for elucidating CN dependent cellular processe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c6f99896fa3ff9892ab69a5ae5ab274
https://igi.indrastra.com/items/show/195576
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9
Water-soluble polymer anchored peroxotitanates as environmentally clean and recyclable catalysts for mild and selective oxidation of sulfides with H2O2 in water
Autor: Satyajit Dey Baruah, Mitu Sharma, Sivangi Paul, Kabirun Ahmed, Gangutri Saikia, Nashreen S. Islam, Hiya Talukdar
Publikováno v: Tetrahedron. 75:130605
Anchoring of peroxotitanium (pTi) species to linear water-soluble acrylic acid based polymers, poly(sodium acrylate) (PA) and poly(sodium methacrylate) (PMA) led to the successful synthesis of a pair of new, water-tolerant and recyclable catalysts of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1cca644cce99dca901edb0e15dd06063
https://doi.org/10.1016/j.tet.2019.130605
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