Parasa Hazarika

ORCID: 0000-0001-8665-6219
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About
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Research Areas
  • Multicomponent Synthesis of Heterocycles
  • Chemical Synthesis and Reactions
  • Synthesis and biological activity
  • Microwave-Assisted Synthesis and Applications
  • Carbon and Quantum Dots Applications
  • Synthesis of Indole Derivatives
  • Synthesis and Biological Evaluation
  • Sulfur-Based Synthesis Techniques
  • Advanced Nanomaterials in Catalysis
  • Graphene and Nanomaterials Applications
  • Nanocluster Synthesis and Applications
  • Graphene research and applications
  • Polyoxometalates: Synthesis and Applications
  • Luminescence and Fluorescent Materials
  • Porphyrin and Phthalocyanine Chemistry
  • Ga2O3 and related materials
  • Advanced Photocatalysis Techniques
  • Inorganic and Organometallic Chemistry
  • Copper-based nanomaterials and applications
  • Electrochemical sensors and biosensors
  • Synthesis and Characterization of Heterocyclic Compounds
  • Photochemistry and Electron Transfer Studies
  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Chemical Synthesis and Analysis
  • Carbon Nanotubes in Composites

North East Institute of Science and Technology
2007-2024

Assam Down Town University
2022-2024

North Eastern Regional Institute of Science and Technology
2019

Indian Institute of Technology Kharagpur
2013

University of Kentucky
2013

Tripura University
2013

National Institute of Technology Agartala
2013

Tripura Medical College & Dr. B.R. Ambedkar Memorial Teaching Hospital
2013

Institute of Minerals and Materials Technology
2007

Advanced Materials and Processes Research Institute
2007

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTSurfactant/I2/Water: An Efficient System for Deprotection of Oximes and Imines to Carbonyls under Neutral Conditions in WaterPranjal Gogoi, Parasa Hazarika, Dilip KonwarView Author Information Organic Chemistry Division, Regional Research Laboratory, Jorhat-785006, Assam, India %dkonwar @yahoo.co.ukCite this: J. Org. Chem. 2005, 70, 5, 1934–1936Publication Date (Web):January 29, 2005Publication History Received5 November 2004Published online29 January...

10.1021/jo0480287 article EN The Journal of Organic Chemistry 2005-01-29

Abstract Carbon dots (CD) generated from biomass were fabricated on g‐C 3 N 4 to construct a metal‐free nanozyme with inherent peroxidase mimic functions. The formation of CD/g‐C was confirmed by different characterization techniques. displays distinct activities, as evidenced the catalyzed oxidation TMB (3,3’,5,5’, ‐tetramethylbenzidine) in presence H 2 O , well color alteration transparent blue. mechanistic analysis activity indicated that produce reactive oxygen species. In an acidic...

10.1002/slct.202201963 article EN ChemistrySelect 2022-08-18

Abstract Various 1,5‐benzodiazepine and quinoxaline derivatives have been synthesized in water with excellent yields using a catalytic amount of indium chloride at room temperature. This synthetic protocol is nontoxic, safe, environmentally benign.

10.1080/00397910701489388 article EN Synthetic Communications 2007-09-01

Abstract A simple and efficient synthesis of bis- tris-indolylalkanes from carbonyls (aldehydes/ketones) indoles with excellent yields in the presence dodecylsulphonic acid (DSA) water at room temperature is described. The catalyst also applicable for 3,3-di(3-indolyl)oxindoles. acts as both Brønsted surface-active agent reaction mixture. Keywords: bis-indolylalkaneBrønsted acid–surfactant catalyst3-substituted indoleswater media ACKNOWLEDGMENT authors acknowledge director, Dr. P. G. Rao, N....

10.1080/00397910801979387 article EN Synthetic Communications 2008-08-18

Abstract Heterogeneous Tin (IV) hydrogen phosphate nanodisks [Sn(HPO4)2.H2O] efficiently catalyzed the one-pot three component condensation of aromatic aldehydes, β-ketoesters and urea to produce 3,4–dihydropyrimidin-2-ones under solvent-free conditions at room temperature. Also, catalyst is equally applicable for preparation 1,5–benzodiazepines same reaction conditions. The optimum load required 10 mole% reusable. Hence, process green.

10.1080/17518253.2011.571719 article EN Green Chemistry Letters and Reviews 2011-06-03

A short review on the application of aluminium chloride hexahydrate [AlCl 3 .6H 2 O], a mild, comparatively less toxic, and easily available reagent has been presented.The article is covering those areas organic synthesis where AlCl O was used either as single or in combination with co-catalyst.

10.3998/ark.5550190.p007.863 article EN cc-by ARKIVOC 2013-06-08

This work demonstrates the waste biomass assisted synthesis of a Z-scheme catalyst (CuWO 4 /N-CQD/g-C 3 N ). The as-synthesized has been utilized for photocatalytic degradation rhodamine B in aqueous medium.

10.1039/d3nj05016e article EN New Journal of Chemistry 2023-01-01

A novel catalytic system consisting of I2-SDS-H2O has been developed which cleaves 2,3-diaza-1,3-butadiene, 1-aza-1,3-butadienes, oximes and in presence indoles the medium uses corresponding aldehyde products to produce bis(indolyl)alkanes situ. This one pot simple mild dual works water at room temperature under neutral conditions.

10.5402/2012/635835 article EN ISRN Organic Chemistry 2012-08-27

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 200 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”

10.1002/chin.200906131 article EN ChemInform 2009-01-15

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 200 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”

10.1002/chin.200829121 article EN ChemInform 2008-06-20

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 200 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”

10.1002/chin.200810042 article EN ChemInform 2008-02-13
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