Výsledky vyhledávání - "Ashim Jyoti Thakur"

Akademický článek

Microwave assisted and in-situ generated palladium nanoparticles catalysed desulfitative synthesis of cross-biphenyls from arylsulfonyl chlorides and phenylboronic acids

Autor: Prasanta Kumar Raul, Abhijit Mahanta, Raju K. Borah, Utpal Bora, Ashim Jyoti Thakur, Jyri-Pekka Mikkola, Andrey Shchukarev

Publikováno v: Results in Chemistry, Vol 3, Iss , Pp 100181- (2021)

A microwave assisted reaction protocol for Suzuki–Miyaura cross-coupling has been developed. Substituted arylboronic acids and arylsulfonyl chlorides coupled under microwave irradiation (MWI) to produce cross-biphenyls in high yields under aerobic

Externí odkaz: https://doaj.org/article/f3e2f06ac41b486cb8d97c480fb604b8

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Akademický článek

Two-Stage Conversion of High Free Fatty Acid Jatropha curcas Oil to Biodiesel Using Brønsted Acidic Ionic Liquid and KOH as Catalysts

Autor: Subrata Das, Ashim Jyoti Thakur, Dhanapati Deka

Publikováno v: The Scientific World Journal, Vol 2014 (2014)

Biodiesel was produced from high free fatty acid (FFA) Jatropha curcas oil (JCO) by two-stage process in which esterification was performed by Brønsted acidic ionic liquid 1-(1-butylsulfonic)-3-methylimidazolium chloride ([BSMIM]Cl) followed by KOH

Externí odkaz: https://doaj.org/article/171ec28a37df4a8ab05b0b03879dd31d

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Utilization of Aryl(TMP)iodonium Salts for Copper-Catalyzed N-Arylation of Isatoic Anhydrides: An Avenue to Fenamic Acid Derivatives and N,N′-Diarylindazol-3-ones

Autor: Raktim Abha Saikia, Khanindra Talukdar, Debabrat Pathak, Bipul Sarma, Ashim Jyoti Thakur

Publikováno v: The Journal of Organic Chemistry. 88:3567-3581

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53e80dc450e072b6dcb6cb0f3ba7f6e7
https://doi.org/10.1021/acs.joc.2c02762

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Metal-Free Regioselective N2-Arylation of 1H-Tetrazoles with Diaryliodonium Salts

Autor: Raktim Abha Saikia, Anurag Dutta, Bipul Sarma, Ashim Jyoti Thakur

Publikováno v: The Journal of Organic Chemistry. 87:9782-9796

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::821c07051b707eb105eaa77a46a40f9c
https://doi.org/10.1021/acs.joc.2c00848

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Metal-free S-arylation of 5-mercaptotetrazoles and 2-mercaptopyridine with unsymmetrical diaryliodonium salts

Autor: Raktim Abha Saikia, Nitumoni Hazarika, Nishant Biswakarma, Ramesh Chandra Deka, Ashim Jyoti Thakur

Publikováno v: Organic & Biomolecular Chemistry. 20:3890-3896

S-arylation of heterocyclic thiols (tetrazole-5-thiols and pyridine-2-thiol) has been achieved with unsymmetrical iodonium salts under metal-free conditions, affording a diverse range of di(hetero)aryl thioethers.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e5acd87165f50f503a96eca06d8e312
https://doi.org/10.1039/d2ob00406b

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Gold-coated iron oxide core–shell nanostructures for the oxidation of indoles and the synthesis of uracil-derived spirooxindoles

Autor: Shivanee Borpatra Gohain, Purna Kanta Boruah, Manash Ranjan Das, Ashim Jyoti Thakur

Publikováno v: New Journal of Chemistry. 46:2641-2652

Synthesis of isatins and uracil-based spirooxindoles catalysed by Au/Fe3O4core–shell nanoparticles under mild conditions and low reaction times.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23c39288dc19ecdc6faae2780da76cdb
https://doi.org/10.1039/d1nj05205e

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Effect of Natural Crosslinker on the Properties of Chicken Feather and Modified Vegetable Oil Based Green Composites

Autor: Tarun K. Maji, Ashim Jyoti Thakur, Gitashree Gogoi

Publikováno v: Journal of Natural Fibers. 19:7896-7908

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6e0583045dff9f72b9b315314eae8ac
https://doi.org/10.1080/15440478.2021.1958421

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Au Nanostructures with Controlled Morphology, Biosynthesized from Garcinia cowa Fruit Extract, and Their Use in Microwave‐Mediated Bisindole Synthesis

Autor: Ashim Jyoti Thakur, Shivanee Borpatra Gohain

Publikováno v: ChemistrySelect. 6:6773-6780

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::221c93fda3eef8e4d72670c29a60f7e8
https://doi.org/10.1002/slct.202100157

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Pd Nanoparticles-Loaded Honeycomb-Structured Bio-nanocellulose as a Heterogeneous Catalyst for Heteroaryl Cross-Coupling Reaction

Autor: Pankaj Bharali, Purna K. Boruah, Manashi Sarmah, Manash R. Das, Anindita Dewan, Ashim Jyoti Thakur, Utpal Bora

Publikováno v: ACS Sustainable Chemistry & Engineering. 9:954-966

Distorted honeycomb-like hollow cage-structured bio-nanocellulose (with 1–16.7 μm diameters) is derived from cellulosic waste of pomegranate peel using a simple microwave technique in water under n...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0bbce974e6cfd49b00b3903d15434a88
https://doi.org/10.1021/acssuschemeng.0c08315

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Revisiting the synthesis of aryl nitriles: a pivotal role of CAN

Autor: Utpal Bora, Kwihwan Park, Tsuyoshi Yamada, Miki Itoh, Ashim Jyoti Thakur, Sanjeev P. Mahanta, Hironao Sajiki, Rakhee Saikia, Hayato Masuda

Publikováno v: Organic & Biomolecular Chemistry. 19:1344-1351

Facilitated by the dual role of Ceric Ammonium Nitrate (CAN), herein we report a cost-effective approach for the cyanation of aryl iodides/bromides with CAN-DMF as an addition to the existing pool of combined cyanation sources. In addition to being a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8987104c9984051f56a91d6b82133f15
https://doi.org/10.1039/d0ob02518f

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