1
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Verma N, Tyagi R, Khanna A, Malviya M, Sagar R. Electro-organic synthesis of isatins and hydrazones through C-N cross-coupling and C(sp 2)-H/C(sp 3)-H functionalization. Org Biomol Chem 2023; 21:6707-6714. [PMID: 37563999 DOI: 10.1039/d3ob01128c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
An efficient and unique approach to synthesize isatin (indole-2,3-dione) from 2-aminoacetophenone under electrochemical conditions supported by I2-DMSO through C-N cross-coupling and C(sp2)-H/C(sp3)-H functionalization is presented. This synthetic method spans a wide range of substituted 2-aminoacetophenone substrates. The use of iodine as a promoter and shorter reaction times produced good to very good yields of isatin derivatives, which is a significant improvement over the reaction in a batch process. Further, hydrazones of isatin were synthesized by using hydrazine hydrate which produces electrochemically active molecules, namely isatin-hydrazones. The hydrazones of acetophenone were also obtained using the same reaction protocol. Additionally, the effect of increasing scan rate studied using cyclic voltammetry shows that the process followed a diffusion-controlled mechanism.
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Affiliation(s)
- Neetu Verma
- Department of Chemistry, IIT (Banaras Hindu University), Varanasi-221005, India.
| | - Rajdeep Tyagi
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
| | - Ashish Khanna
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Manisha Malviya
- Department of Chemistry, IIT (Banaras Hindu University), Varanasi-221005, India.
| | - Ram Sagar
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
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2
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Thoenen M, Gettings M, Holt C, Frontier AJ, Caruana PA, Zeller M, Byrd EFC, Piercey DG. Approach to High-Nitrogen Materials with Dual-Use Properties via Tetraaza-Nazarov Cyclization. Inorg Chem 2022; 61:18095-18101. [DOI: 10.1021/acs.inorgchem.2c02649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Thoenen
- Department of Materials Engineering, Purdue University, 205 Gates Road, West Lafayette, Indiana 47906, United States
- Purdue Energetics Research Center, Purdue University, 205 Gates Road, West Lafayette, Indiana 47906, United States
| | - Matthew Gettings
- Department of Chemistry and Life Sciences, United States Military Academy, West Point, 606 Thayer Rd, West Point, New York 10996, United States
| | - Connor Holt
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - Alison J. Frontier
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - Patrick A. Caruana
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, District of Columbia 20375, United States
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47906, United States
| | - Edward F. C. Byrd
- Detonation Sciences & Modeling Branch, CCDC U. S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, United States
| | - Davin G. Piercey
- Department of Materials Engineering, Purdue University, 205 Gates Road, West Lafayette, Indiana 47906, United States
- Purdue Energetics Research Center, Purdue University, 205 Gates Road, West Lafayette, Indiana 47906, United States
- Department of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, Indiana 47906, United States
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3
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Satheesh D, Sreenivasulu B, Reddy BS, Reddy UR, Saladi JSC, Gupta PB, Reddy ASK, Aegurla B, Basavaiah K. Synthesis and Characterisation of Impurities of Apixaban Drug Substance ‐ An Anti‐coagulant. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Deekonda Satheesh
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
- Department of Inorganic & Analytical chemistry, A.U. College of Science & Technology Andhra University Visakhapatnam Andhra Pradesh India
| | - B. Sreenivasulu
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - Bhavanam Sekhara Reddy
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - U. Rajasekhar Reddy
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - J. S. Chakradhar Saladi
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - P. Badrinath Gupta
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - Aaramadaka Sunil Kumar Reddy
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - Balakrishna Aegurla
- Chemical Research Department, APL Research Centre‐II, Aurobindo Pharma Limited, Indrakaran Village Sangareddy (District) Telangana India
| | - Keloth Basavaiah
- Department of Inorganic & Analytical chemistry, A.U. College of Science & Technology Andhra University Visakhapatnam Andhra Pradesh India
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4
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Lv Y, Meng J, Li C, Wang X, Ye Y, Sun K. Update on the Synthesis of N‐Heterocycles via Cyclization of Hydrazones (2017–2021). Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101184] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yunhe Lv
- College of Chemistry and Chemical Engineering Anyang Normal University Anyang 4550008 People's Republic of China
| | - Jianping Meng
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Chen Li
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Xin Wang
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Yong Ye
- College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Kai Sun
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
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5
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Rajai-Daryasarei S, Gohari MH, Mohammadi N. Reactions involving aryl methyl ketone and molecular iodine: a powerful tool in the one-pot synthesis of heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d1nj03572j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The preparation of heterocyclic compounds has attracted great attention in organic chemistry because of their extensive application in the field of bioactive molecules, materials science, and natural products.
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Affiliation(s)
| | | | - Narges Mohammadi
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
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6
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Aegurla B, Jarwal N, Peddinti RK. Denitrative imino-diaza-Nazarov cyclization: synthesis of pyrazoles. Org Biomol Chem 2020; 18:6100-6107. [PMID: 32785358 DOI: 10.1039/d0ob01200a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An iodine-catalyzed denitrative imino-diaza-Nazarov cyclization (DIDAN) methodology has been developed for the synthesis of pyrazoles with high to excellent yields by using α-nitroacetophenone derivatives and in situ generated hydrazones. The key transformation of this oxidative 4π-electrocyclization proceeds through an enamine-iminium ion intermediate. This rapid one-pot DIDAN protocol results in the selective generation of C-C and C-N bonds and cleavage of a C-N bond.
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Affiliation(s)
- Balakrishna Aegurla
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Nisha Jarwal
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Rama Krishna Peddinti
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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7
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Querino ALDA, Enes KB, Chaves OA, Dittz D, Couri MRC, Diniz R, Silva H. Modified pyrazole platinum(II) complex can circumvent albumin and glutathione: Synthesis, structure and cytotoxic activity. Bioorg Chem 2020; 100:103936. [PMID: 32438131 DOI: 10.1016/j.bioorg.2020.103936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 12/18/2022]
Abstract
The synthesis and structural characterization of novel platinum complexes ([PtII(Pz)2Cl2] - C1, C2 and C3) featuring diphenyl-pyrazole derived ligands: para-fluorophenyl and para-substituted phenyl (CH3, F and Cl for L1, L2 and L3, respectively) were reported and it was also evaluated their potential antitumor activity. The elemental, molar conductivity and thermogravimetric analysis combined with FTIR, UV-vis, NMR and mass spectrometry are in agreement with the chemical structure indicated by single-crystal X-ray diffraction. The antiproliferative activities were assessed against tumor (B16F10 and 4T1) and non-tumor (BHK21) cell lines, and the cytotoxicity of the compounds was strongly increased after metal complexation displaying promising activity. It was also assessed the ability of extracellular bovine serum albumin (BSA) and glutathione (GSH) to decrease the cytotoxicity of the complexes against B16F10. It was highlighted that only the C3 activity was not disturbed in those conditions, being confirmed by flow cytometry using Anexin-V/PI to evaluate interferences in the apoptosis process, even it was not predicted by molecular docking simulations. The interaction of the synthesized compounds with calf-thymus DNA (ctDNA) and bovine serum albumin (BSA) was also investigated through spectrophotometric assays and molecular docking simulations, indicating that C1 and C2 presented better interaction with the biomacromolecules than the corresponding ligands. In addition, agarose gel electrophoresis with plasmid DNA revealed that C1-C3 are capable of interaction with DNA and modify its electrophoretic mobility.
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Affiliation(s)
| | - Karine Braga Enes
- Department of Chemistry, Universidade Federal de Juiz de Fora, 36036-900 Juiz de Fora, MG, Brazil
| | - Otávio Augusto Chaves
- Senai Innovation Institute for Green Chemistry, 20271-030 Rio de Janeiro, RJ, Brazil
| | - Dalton Dittz
- Department of Biochemistry and Pharmacology, Universidade Federal do Piauí, 64049-550 Terezina, PI, Brazil
| | - Mara Rubia Costa Couri
- Department of Chemistry, Universidade Federal de Juiz de Fora, 36036-900 Juiz de Fora, MG, Brazil
| | - Renata Diniz
- Department of Chemistry, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Heveline Silva
- Department of Chemistry, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
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8
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Lakhi JS, Patterson MR, Dias HVR. Coinage metal metallacycles involving a fluorinated 3,5-diarylpyrazolate. NEW J CHEM 2020. [DOI: 10.1039/d0nj03744c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoluminescent, trinuclear, coinage metal pyrazolates have been isolated using a fluorinated diaryl-pyrazolate.
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Affiliation(s)
- Jaspreet S. Lakhi
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | - Monika R. Patterson
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | - H. V. Rasika Dias
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
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9
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Ötvös SB, Georgiádes Á, Ozsvár D, Fülöp F. Continuous-flow synthesis of 3,5-disubstituted pyrazoles via sequential alkyne homocoupling and Cope-type hydroamination. RSC Adv 2019; 9:8197-8203. [PMID: 35518676 PMCID: PMC9061249 DOI: 10.1039/c9ra01590f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 03/04/2019] [Indexed: 12/28/2022] Open
Abstract
A flow chemistry-based approach is presented for the synthesis of 3,5-disubstituted pyrazoles via sequential copper-mediated alkyne homocoupling and Cope-type hydroamination of the intermediary 1,3-diynes in the presence of hydrazine as nucleophilic reaction partner. The proposed multistep methodology offers an easy and direct access to valuable pyrazoles from cheap and readily available starting materials and without the need for the isolation of any intermediates. A telescoped continuous-flow method is presented for the synthesis of 3,5-disubstituted pyrazoles via copper-mediated alkyne homocoupling and Cope-type hydroamination of the intermediary 1,3-dialkynes.![]()
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Affiliation(s)
- Sándor B. Ötvös
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Center
- H-6720 Szeged
- Hungary
| | - Ádám Georgiádes
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Center
- H-6720 Szeged
- Hungary
| | - Dániel Ozsvár
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Center
- H-6720 Szeged
- Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry
- University of Szeged
- Interdisciplinary Excellence Center
- H-6720 Szeged
- Hungary
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10
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Mohamady S, Kralt B, Samwel SK, Taylor SD. Efficient One-Pot, Two-Component Modular Synthesis of 3,5-Disubstituted Pyrazoles. ACS OMEGA 2018; 3:15566-15574. [PMID: 31458212 PMCID: PMC6643981 DOI: 10.1021/acsomega.8b02304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/06/2018] [Indexed: 06/10/2023]
Abstract
The pyrazole scaffold is one of the most prevalent and important tool in medicinal chemistry. Here, we report a method for preparing 3,5-diarylpyrazoles in good to excellent yield by reacting hydrazones of aryl aldehydes with substituted acetophenones in ethanol in the presence of dimethyl sulfoxide/cat. I2/cat. HCl. The reverse process, reacting hydrazones of substituted acetophenones with aryl aldehydes under the same conditions, also provides 3,5-diarylpyrazoles in good to excellent yields. Reaction of hydrazones of aldehydes with 2'-aryloxy ketones in the presence of cat. HCl in ethanol and the catalyst-free reaction of phenacyl bromides with hydrazones of aldehydes in ethanol also gave good to excellent yields of 3,5-diarylpyrazoles.
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Affiliation(s)
- Samy Mohamady
- Faculty
of Pharmacy, The British University in Egypt, Cairo-Suez Desert Road, Al-Sherouk 11837, Cairo, Egypt
| | - Braden Kralt
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1
| | - Shery K. Samwel
- Faculty
of Pharmacy, The British University in Egypt, Cairo-Suez Desert Road, Al-Sherouk 11837, Cairo, Egypt
| | - Scott D. Taylor
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1
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11
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Marsili LA, Pergomet JL, Gandon V, Riveira MJ. Iodine-Catalyzed Iso-Nazarov Cyclization of Conjugated Dienals for the Synthesis of 2-Cyclopentenones. Org Lett 2018; 20:7298-7303. [PMID: 30403484 DOI: 10.1021/acs.orglett.8b03229] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular iodine was identified as an efficient catalyst for the cycloisomerization of conjugated dienals to substituted 2-cyclopentenones. DFT calculations suggested an unexpected concerted character for this cyclization.
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Affiliation(s)
- Lucía A Marsili
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET , Suipacha 531 , S2002LRK , Rosario , Argentina
| | - Jorgelina L Pergomet
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET , Suipacha 531 , S2002LRK , Rosario , Argentina
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), CNRS UMR 8182, Univ Paris-Sud, Université Paris-Saclay , 91405 Orsay cedex , France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Université Paris-Saclay , route de Saclay , 91128 Palaiseau cedex , France
| | - Martín J Riveira
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET , Suipacha 531 , S2002LRK , Rosario , Argentina
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12
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Zhang W, Johnson GM, Guan Z, He YH. Regio- and Stereoselective Hydrosulfonylation of Electron-Deficient Alkynes: Access to Both E- and Z-β-Sulfonyl-α,β-Unsaturated Carbonyl Compounds. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wei Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
| | - Gabriel M. Johnson
- Chemistry Department; College of Saint Benedict and Saint John's University; MN 56374 USA
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality; School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
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13
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Aegurla B, Peddinti RK. Metal‐Free Sulfonylation of α,β‐Conjugated Systems by Using Sulfonyl Hydrazides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700696] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Balakrishna Aegurla
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
| | - Rama Krishna Peddinti
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
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