Výsledky vyhledávání - "Nitul Ranjan Guha"

Supported Rhodium Nanoparticle-Catalyzed Intermolecular Regioselective Carbonylative Cyclization of Terminal Alkynes using Oxalic Acid as Sustainable C1Source

Autor: Vandna Thakur, Nitul Ranjan Guha, Dhananjay Bhattacherjee, Pralay Das, Richa Bharti

Publikováno v: Advanced Synthesis & Catalysis. 358:3743-3747

Polystyrene-supported rhodium(0) (Rh@PS) nanoparticles (NPs) as a heterogeneous catalyst have been used for the synthesis of monocyclic 3,5-disubstituted cyclopent-2-enones from terminal alkynes and oxalic acid as the in situ C1 source following an i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d96c45611617fc71bb05aff541b3abd1
https://doi.org/10.1002/adsc.201600451

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Evaluating polymer-supported isothiourea catalysis in industrially-preferable solvents for the acylative kinetic resolution of secondary and tertiary heterocyclic alcohols in batch and flow

Autor: Andrew D. Smith, Carles Rodríguez-Escrich, Claire M. Young, Samuel M. Smith, Megan L. McEvoy, Nitul Ranjan Guha, Miquel A. Pericàs, Rifahath M. Neyyappadath, Mark D. Greenhalgh, Ross Chisholm, Georg Hähner

Publikováno v: RECERCAT (Dipòsit de la Recerca de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
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The authors thank the Royal Society and the Science and Engineering Board of India (SERB) for the award of a Royal Society-SERB Newton International Fellowship (N.R.G.). The authors also thank the EPSRC Centre for Doctoral Training in Critical Resour

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a71f0bff7e28a48ff964cc7d630af9de
https://hdl.handle.net/2072/374853

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Oxidative 'reverse-esterification' of ethanol with benzyl/alkyl alcohols or aldehydes catalyzed by supported rhodium nanoparticles

Autor: Dhananjay Bhattacherjee, Nitul Ranjan Guha, Vandna Thakur, Richa Bharti, Saurabh Sharma, Pralay Das, C. Bal Reddy

Publikováno v: Green Chemistry. 18:1206-1211

A very unusual role of polystyrene stabilized rhodium (Rh@PS) nanoparticles as a supported catalyst is described for “reverse-esterification” of ethanol with benzyl/alkyl alcohols or aldehydes. Faster and selective oxidation of ethanol to acetald

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::184b5e72f94fee52a744e2059acef61e
https://doi.org/10.1039/c5gc02513c

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Polystyrene trimethyl ammonium chloride impregnated Rh(0) (Rh@PMe3NCl) as a catalyst and methylating agent for esterification of alcohols through selective oxidation of methanol

Autor: Nitul Ranjan Guha, Dhananjay Bhattacherjee, Pralay Das

Publikováno v: Catalysis Science & Technology. 5:2575-2580

Rhodium(0) nanoparticle (NP)-impregnated polystyrene trimethyl ammonium chloride (PMe3NCl) resin (Rh@PMe3NCl) under basic conditions acts as a cross-dehydrogenative coupling-methylating (CDCM) agent for the selective oxidation of methanol and its in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ac80c3cd1ede18286adf3752b00acb8
https://doi.org/10.1039/c5cy00002e

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Solid Supported Palladium(0) Nanoparticles: An Efficient Heterogeneous Catalyst for Regioselective Hydrosilylation of Alkynes and Suzuki Coupling of β-Arylvinyl Iodides

Autor: Nitul Ranjan Guha, Dharminder Sharma, Pralay Das, Arun K. Shil, C. Bal Reddy

Publikováno v: Catalysis Letters. 144:1530-1536

The solid supported palladium(0) nanoparticles (NPs) were found as an active heterogeneous catalyst for regioselective hydrosilylation of alkynes with organosilanes in the presence of NaI as additive. Aliphatic as well as aromatic terminal/substitute

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dfaf21140cdd73bb6b34ec8f3a9b48e
https://doi.org/10.1007/s10562-014-1311-8

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Solid supported Ru(0) nanoparticles: an efficient ligand-free heterogeneous catalyst for aerobic oxidation of benzylic and allylic alcohol to carbonyl

Autor: Nitul Ranjan Guha, Pralay Das, Nidhi Aggarwal

Publikováno v: Tetrahedron Letters. 54:2924-2928

Polymer immobilized stable, spherical ruthenium nanoparticles were prepared, characterized, and acted as a heterogeneous catalyst for the selective benzylic and allylic alcohol oxidation into the corresponding carbonyls using molecular oxygen. The so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76ab392459fb63691c435a68bccad0f8
https://doi.org/10.1016/j.tetlet.2013.03.106

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Solid supported palladium(0) nano/microparticle: a ligand-free efficient recyclable heterogeneous catalyst for mono- and β,β-double-Heck reaction

Autor: Sandeep Kumar, Nitul Ranjan Guha, Pralay Das, Dharminder Sharma, Bandna, Arun K. Shil

Publikováno v: Tetrahedron Letters. 53:7044-7051

Solid supported palladium nano/microparticles were found to be active catalysts to perform mono- and β,β-double-Heck reactions. Different β-unsubstituted and substituted alkenes including acrylate, methacrylate, crotonate, styrene, acrylonitrile,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f9bf67b5733f386935a6c0b596614fe
https://doi.org/10.1016/j.tetlet.2012.10.062

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Solid-Supported Rhodium(0) Nano-/Microparticles: An Efficient Ligand-Free Heterogeneous Catalyst for Microwave-Assisted Suzuki-Miyaura Cross-Coupling Reaction

Autor: Nitul Ranjan Guha, Bandna, Arun K. Shil, Nidhi Aggarwal, Pralay Das, Chennayala Bal Reddy, Dharminder Sharma

Publikováno v: Advanced Synthesis & Catalysis. 354:2911-2915

Solid-supported nano- and microparticles of rhodium(0) (SS-Rh) were prepared and applied as a ligand free heterogeneous catalyst for Suzuki– Miyaura cross-coupling reaction with wide range of substrate scope. A hitherto unknown Rh-catalyzed Suzuki

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d501dee96b62d634bc92c777d4f7486
https://doi.org/10.1002/adsc.201200418

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Ligand-free solid supported palladium(0) nano/microparticles promoted C–O, C–S, and C–N cross coupling reaction

Autor: Arun K. Shil, Dharminder Sharma, Pralay Das, Nitul Ranjan Guha, Bandna

Publikováno v: Tetrahedron Letters. 53:5318-5322

Ligand-free solid-supported nano and microparticles of Pd(0) (SS-Pd) were used as a heterogeneous catalyst in carbon-heteroatom bond formation reactions. Nitro substituted aryl halides reacted with oxygen, sulfur, and nitrogen nucleophiles to afford

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04ddc2efceefc7a380a8427bbcb18954
https://doi.org/10.1016/j.tetlet.2012.07.096

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Solid supported Pd(0): an efficient recyclable heterogeneous catalyst for chemoselective reduction of nitroarenes

Autor: Dharminder Sharma, Pralay Das, Nitul Ranjan Guha, Arun K. Shil

Publikováno v: Tetrahedron Letters. 53:4858-4861

Solid supported palladium(0) (SS-Pd) catalyzed highly chemoselective reduction of nitroarenes to the corresponding anilines was accomplished under a milder reaction condition. This catalyst showed high compatibility with various reducing agents (NaBH

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e32c6ebd934ffd323cb560093faa852
https://doi.org/10.1016/j.tetlet.2012.06.132

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