1
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Dong ZB, Gong Z, Dou Q, Cheng B, Wang T. A decade update on the application of β-oxodithioesters in heterocyclic synthesis. Org Biomol Chem 2023; 21:6806-6829. [PMID: 37555699 DOI: 10.1039/d3ob00601h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The diverse synthesis of heterocyclic compounds has always been one of the popular subjects of organic chemistry. To this end, great efforts have been devoted to developing new reagents and establishing new strategies and methods concerning efficiency, selectivity and sustainability. β-Oxodithioesters and their enol tautomers (i.e., α-enolic dithioesters), as a class of simple and readily accessible sulfur-containing synthons, have been widely applied in the construction of various five- and six-membered heterocycles (e.g., thiophenes, thiopyrans, thiazoles, pyridines and quinolines) and other useful open-chain frameworks. Due to their unique chemical structures, β-oxodithioesters bear multiple reaction sites, which enable them to participate in two-component or multicomponent reactions to construct various heterocyclic compounds. In the past decade, the application of β-oxodithioesters in the synthesis of heterocycles has made remarkable progress. Herein, an update on the recent advances in the application of β-oxodithioesters in the synthesis of heterocycles during the period from 2013 to 2023/06 is provided. According to the different types of rings concerning heteroatoms in products, this review is divided into five sections under discussion including (i) synthesis of sulfur-containing heterocycles, (ii) synthesis of sulfur and nitrogen-containing heterocycles, (iii) synthesis of nitrogen-containing heterocycles, (iv) synthesis of nitrogen and oxygen-containing heterocycles, and (v) modification to other open-chain frameworks.
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Affiliation(s)
- Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Zhiying Gong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Qian Dou
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Bin Cheng
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Taimin Wang
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
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2
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Pali P, Singh MS. Radical-Cascade Avenue to Access 1,2-Dithioles Employing Dithioesters and Edman's Reagent. Org Lett 2023; 25:2258-2263. [PMID: 36966396 DOI: 10.1021/acs.orglett.3c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023]
Abstract
An operationally simple and efficient domino etiquette has been developed for the facile construction of 1,2-dithioles employing easily accessible dithioesters as a three-atom CCS synthon and aryl isothiocyanates as a two-atom CS unit in the absence of any catalyst and additive at room temperature under open air. The reaction proceeded efficiently affording the desired 1,2-dithioles in good yields having various functional groups of a diverse electronic and steric nature. This approach avoids possible toxicity and tiresome workup conditions and features easy to handle, cheap, and readily accessible reagents, O2 as a green oxidant, and gram-scale ability. Notably, the final S-S bond formation and cascade ring construction follow a radical pathway, which has been recognized via a radical trapping experiment with BHT during the course of the reaction. Notably, the exocyclic C═N bond at position 3 of 1,2-dithiole possesses Z stereochemistry.
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Affiliation(s)
- Pragya Pali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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3
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Zhang LM, Wen LR, Xin X, Li M. Synthesis of thiophene derivatives through InCl3-catalyzed cyclization of β-oxodithioesters with vinyl azides. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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4
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Barik S, Shee S, Gonnade RG, Biju AT. Enantioselective Synthesis of Dihydrothiopyranones via NHC-Catalyzed [3 + 3] Annulation of 2-Bromoenals with β-Oxodithioesters. Org Lett 2022; 24:8848-8853. [DOI: 10.1021/acs.orglett.2c03642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shilpa Barik
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Sayan Shee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Akkattu T. Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
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5
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Soni S, Shukla G, Singh MS. Magnesium catalyzed [3 + 3] heteroannulation of α-enolic dithioesters with MBH acetate: access to functionalized 3,4-dihydro-2 H-thiopyrans. Org Biomol Chem 2022; 20:6784-6798. [PMID: 35959842 DOI: 10.1039/d2ob01258h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnesium catalysis proved to be efficient towards [3 + 3] chemo- and diastereoselective heteroannulation employing racemic Morita-Baylis-Hillman (MBH) acetate as the C3 unit and α-enolic dithioester as the C2S1 unit, leading to highly substituted 3,4-dihydro-2H-thiopyrans in excellent yields. The compatibility with a wide range of functional groups makes this domino formation of C-C and C-S bonds interesting. DFT analyses for the regioselective formation of the intermediate was performed.
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Affiliation(s)
- Sonam Soni
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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6
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Ray S, Singh S, Kumar G, Shukla G, SINGH MAYA. Reagent‐Controlled Chemodivergent Approach to Thiazolines and Thiazines from α‐N‐Hydroxyimino Dithioesters. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Ganesh Kumar
- Banaras Hindu University Faculty of Science INDIA
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7
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Farh MK, Gruschwitz FV, Ziegenbalg N, Abul-Futouh H, Görls H, Weigand W, Brendel JC. Dual Function of β-hydroxy Dithiocinnamic Esters: RAFT Agent and Ligand for Metal Complexation. Macromol Rapid Commun 2022; 43:e2200428. [PMID: 35751415 DOI: 10.1002/marc.202200428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/12/2022] [Indexed: 11/06/2022]
Abstract
The reversible addition-fragmentation chain-transfer (RAFT) process has become a versatile tool for the preparation of defined polymers tolerating a large variety of functional groups. Several dithioesters, trithiocarbonates, xanthates, or dithiocarbamates have been developed as effective chain transfer agents (CTA), but only few examples have been reported, where the resulting end groups are directly considered for a secondary use besides controlling the polymerization. We here demonstrate that β-hydroxy dithiocinnamic esters represent a hitherto overlooked class of materials, which were originally designed for the complexation of transition metals but might as well act as reversible CTA. Modified with a suitable leaving group (R-group), these vinyl conjugated dithioesters indeed provide reasonable control over the polymerization of acrylates, acrylamides, or styrene via the RAFT process. Kinetic studies revealed linear evolutions of molar mass with conversion, while different substituents on the aromatic unit had only a minor influence. Block extensions prove the livingness of the polymer chains, although extended polymerization times may lead to side reactions. The resulting dithiocinnamic ester end groups are still able to form complexes with platinum, which verifies that the structural integrity of the end group is maintained. These findings open a versatile new route to tailor-made polymer bound metal complexes. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Micheal K Farh
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany.,Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71515, Egypt.,Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa, 13133, Jordan
| | - Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Nicole Ziegenbalg
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
| | - Hassan Abul-Futouh
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa, 13133, Jordan
| | - Helmar Görls
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany
| | - Wolfgang Weigand
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Johannes C Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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8
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Yadav D, Srivastava A, Ansari MA, Singh MS. Unusual Behavior of Ketoximes: Reagentless Photochemical Pathway to Alkynyl Sulfides. J Org Chem 2021; 86:5908-5921. [PMID: 33821649 DOI: 10.1021/acs.joc.1c00417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The unique properties of ketoximes are used prominently for the synthesis of heterocycles. In contrast, their potential to absorb light and photoelectron transfer processes remains challenging. Widespread interest in controlling direct excitation of ketoxime tacticity unlocks unconventional reaction pathways, enabling photochemical intramolecular skeletal modification to constitute alkynyl sulfides that cannot be realized via traditional activation. Despite decades of advancements, the alkynyl sulfides, particularly those composed of polar functionalities and derived from renewable sources, remain unknown. These findings demonstrate the importance of decelerated ketoxime from β-oxodithioester for the identification of reaction conditions. The method uses mild reaction conditions to generate excited-state photoreductant for the functionalization of an array of alkynyl sulfides. Additionally, a fundamental understanding of elementary steps using electrochemical and spectroscopic techniques/experiments revealed a PCET pathway to this transformation, while the involved substrates and their properties with improved economical tools indicated the translational potential of this method.
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Affiliation(s)
- Dhananjay Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Abhijeet Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Monish Arbaz Ansari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
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9
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Devi TJ, Singh TP, Singh RR, Singh EH, Singh OM. Deep Eutectic Solvent Promoted Regioselective Synthesis of Densely Functionalized Mono and Bisindolylalkenes from
β
‐Ketodithioesters. ChemistrySelect 2020. [DOI: 10.1002/slct.202003779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Soni S, Pali P, Ansari MA, Singh MS. Visible-Light Photocatalysis of Eosin Y: HAT and Complementing MS-CPET Strategy to Trifluoromethylation of β-Ketodithioesters with Langlois' Reagent. J Org Chem 2020; 85:10098-10109. [PMID: 32648747 DOI: 10.1021/acs.joc.0c01355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A metal- and oxidant-free photoinduced strategy for thioxo sulfur-selective trifluoromethylation of β-ketodithioesters at room temperature is reported. Excellent Z/E-stereoselectivity has been achieved with cheap and viable Langlois' reagent (CF3SO2Na, sodium triflinate) in the presence of eosin Y, which acts as a hydrogen atom transfer (HAT) catalyst. The reaction proceeds via disulfide intermediate disulfanediylbis(3-(alkylthio)-1-phenylprop-2-en-1-one) (a dimer of β-ketodithioester) followed by complementing proton-coupled electron transfer-mediated reverse HAT cycle of eosin Y. This operationally simple and efficient protocol allows direct access to triflinated α-oxoketene dithioacetals in good to excellent yields bearing diverse synthetically useful functional groups of different electronic and steric nature.
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Affiliation(s)
- Sonam Soni
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Pragya Pali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Monish Arbaz Ansari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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11
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Chanu IH, Devi LM, Singh TP, Singh SJ, Singh RR, Mukherjee Singh O. β‐Ketodithioesters as Versatile Building Blocks for the Diversity Oriented Synthesis of Thioamides, α‐Allylated‐Thioesters and Ketoamides. ChemistrySelect 2020. [DOI: 10.1002/slct.202001807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Irom Harimala Chanu
- Department of Chemistry Manipur University Imphal,Canchipur 795003 India E-mail: ok
| | - Laishram Momota Devi
- Department of Chemistry Manipur University Imphal,Canchipur 795003 India E-mail: ok
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12
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Xu Q, Zheng B, Pan L, Liu Q, Li Y. Synthesis of α‐Substituted Succinimides from Glyoxal and Ketene
N
,
S
‐Acetals. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qi Xu
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
| | - Baihui Zheng
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
| | - Ling Pan
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
| | - Qun Liu
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
| | - Yifei Li
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
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13
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Soni S, Koley S, Ansari MA, Singh MS. Site‐Specific S‐Allylation of α‐Enolic Dithioesters with Morita‐Baylis‐Hillman Acetates at Room Temperature: Precursor for Thiopyrans. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sonam Soni
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Suvajit Koley
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Monish A. Ansari
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
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14
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Hebishy AMS, Elgemeie GH, Elwahy AHM. Novel Bis(2‐cyanoketene‐
S
,
S
‐/
S
,
N
‐acetals): Versatile Precursors for Novel Bis(aminopyrazole) Derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ali M. S. Hebishy
- Chemistry Department, Faculty of ScienceHelwan University Cairo Egypt
| | - Galal H. Elgemeie
- Chemistry Department, Faculty of ScienceHelwan University Cairo Egypt
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15
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Ghosh A, Gattu R, Khan AT. Synthesis of Benzothiazoles via Condensation Reaction of 2-Aminothiophenols and β
-Oxodithioesters Using a Combination of PTSA and CuI as Catalyst. ChemistrySelect 2018. [DOI: 10.1002/slct.201803403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Arindam Ghosh
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
| | - Radhakrishna Gattu
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
| | - Abu T. Khan
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
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16
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Yu L, Meng C, Wang J, Gao Z, Xie J. Substrate‐Controlled Diastereoselectivity Switch in the Formation of Dihydrothieno[3,4‐
c
]coumarins via [4+1] Annulations. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Li‐Si‐Han Yu
- Department of Chemistry and Life SciencesZhejiang Normal University 321004 Jinhua People's Republic of China
| | - Chang‐Yu Meng
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Department of Chemistry and Food ScienceYulin Normal University 537000 Yulin People's Republic of China
| | - Jing Wang
- Department of Chemistry and Life SciencesZhejiang Normal University 321004 Jinhua People's Republic of China
| | - Zhi‐Jian Gao
- Department of Chemistry and Life SciencesZhejiang Normal University 321004 Jinhua People's Republic of China
| | - Jian‐Wu Xie
- Department of Chemistry and Life SciencesZhejiang Normal University 321004 Jinhua People's Republic of China
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17
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Koley S, Panja SK, Soni S, Singh MS. Catalyst-Free One-Pot Access to Pyrazoles and Disulfide-Tethered Pyrazoles via Deamidative Heteroannulation of β-Ketodithioesters with Semicarbazide Hydrochloride in Water. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701595] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Suvajit Koley
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi 221005 India
| | - Sumit Kumar Panja
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bengaluru 560012 India
| | - Sonam Soni
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi 221005 India
| | - Maya Shankar Singh
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi 221005 India
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18
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Dithioester-enabled chemodivergent synthesis of acids, amides and isothiazoles via C C bond cleavage and C O/C N/C S bond formations under metal- and catalyst-free conditions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Mohebat R, Yazdani-Elah-Abadi A, Malek-Taher Maghsoodlou, Hazeri N. DABCO-catalyzed multi-component domino reactions for green and efficient synthesis of novel 3-oxo-3 H -benzo[ a ]pyrano[2,3- c ]phenazine-1-carboxylate and 3-(5-hydroxybenzo[ a ]phenazin-6-yl)acrylate derivatives in water. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Srivastava A, Shukla G, Singh MS. p -Toluenesulfonic acid-catalyzed metal-free formal [4 + 1] heteroannulation via N H/O H/S H functionalization: One-pot access to 2-aryl/hetaryl/alkyl benzazole derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Kurva S, Sriramoju V, Madabhushi S, Nanubolu JB. Synthesis of polysubstituted 3,4-dihydro-2H-thiopyrans by regioselective annulation of 3,3-disubstituted allylic alcohols with a β-oxodithioester. NEW J CHEM 2017. [DOI: 10.1039/c7nj03025h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Polyfunctionalized 3,4-dihydro-2H-thiopyrans were obtained in high yields via the regioselective annulation of 3,3-disubstituted allylic alcohols with a β-oxodithioester under BF3·Et2O catalysis.
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Affiliation(s)
- Srinivas Kurva
- Fluoroorganics Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Vinodkumar Sriramoju
- Fluoroorganics Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Sridhar Madabhushi
- Fluoroorganics Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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22
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Li CX, Liu RJ, Yin K, Wen LR, Li M. Synthesis of disulfides tethered pyrroles from β-ketothioamides via a bicyclization/ring-opening/oxidative coupling reaction. Org Biomol Chem 2017; 15:5820-5823. [DOI: 10.1039/c7ob00655a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A DABCO-promoted three-component reaction of β-ketothioamides, arylglyoxals and 2-cyanoacetate to construct disulfides tethered pyrroles has been developed.
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Affiliation(s)
- Cong-Xiang Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Rui-Juan Liu
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Kun Yin
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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23
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Nandi GC, K S. Catalyst-Controlled Straightforward Synthesis of Highly Substituted Pyrroles/Furans via Propargylation/Cycloisomerization of α-Oxoketene-N,S-acetals. J Org Chem 2016; 81:11909-11915. [DOI: 10.1021/acs.joc.6b02367] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ganesh Chandra Nandi
- Organic Chemistry Section,
Chemical Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, Kerala 695019, India
| | - Soumini K
- Organic Chemistry Section,
Chemical Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, Kerala 695019, India
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24
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Koley S, Chanda T, Samai S, Singh MS. Switching Selectivity of α-Enolic Dithioesters: One Pot Access to Functionalized 1,2- and 1,3-Dithioles. J Org Chem 2016; 81:11594-11602. [PMID: 27813414 DOI: 10.1021/acs.joc.6b01802] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An operationally simple cascade protocol has been developed for the construction of 1,2- and 1,3-dithiole derivatives from α-enolic dithioesters. 1,2-Dithioles are achieved by the reaction of dithioesters with elemental sulfur in the presence of InCl3 under solvent-free conditions. 1,3-Dithioles have been constructed via DABCO mediated self-coupling of dithioesters in open air enabling the formation of two new C-S bonds and one ring in a single operation in contiguous fashion. The reactions proceeded smoothly affording the desired sulfur-rich heterocycles in good to excellent yields, exhibiting gram-scale ability and broad functional group tolerance utilizing easy to handle cheap and easily available reagents. The probable mechanisms for the formation of 1,2- and 1,3-dithioles from α-enolic dithioesters have been suggested.
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Affiliation(s)
- Suvajit Koley
- Department of Chemistry, Institute of Science, Banaras Hindu University , Varanasi 221005, India
| | - Tanmoy Chanda
- Department of Chemistry, Institute of Science, Banaras Hindu University , Varanasi 221005, India
| | - Subhasis Samai
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta , 92, A.P.C. Road, Kolkata 700009, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University , Varanasi 221005, India
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25
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DABCO-catalyzed multi-component domino reactions for the one-pot efficient synthesis of diverse and densely functionalized benzofurans in water. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2726-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Pradeepa Kumara C, Byre Gowda G, Ramesh N, Sadashiva M, Junjappa H. A new general method for the synthesis of thiophenes through acid mediated cyclization of mixed acetals derived from β-oxodithiates and bromoacetaldehyde acetal. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.100] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Shukla G, Srivastava A, Singh MS. Metal- and Catalyst-Free, Formal [4 + 1] Annulation via Tandem C═O/C═S Functionalization: One-Pot Access to 3,5-Disubstituted/Annulated Isothiazoles. Org Lett 2016; 18:2451-4. [DOI: 10.1021/acs.orglett.6b00997] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaurav Shukla
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Abhijeet Srivastava
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
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28
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Mohebat R, Yazdani Elah Abadi A, Maghsoodlou MT. A rapid and efficient domino protocol for the synthesis of functionalized benzo[a]pyrano[2,3-c]phenazine and benzo[f]pyrano[2,3-h]quinoxaline derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2437-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Affiliation(s)
- Lin Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinhuan Dong
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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30
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Yazdani-Elah-Abadi A, Mohebat R, Maghsoodlou MT. Theophylline as the catalyst for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines in water. RSC Adv 2016. [DOI: 10.1039/c6ra18750a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Theophylline-catalyzed efficient and environmentally benign procedure for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines with pyridinium ylide assisted domino reaction in water.
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Affiliation(s)
| | - Razieh Mohebat
- Department of Chemistry
- Yazd Branch
- Islamic Azad University
- Yazd
- Iran
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31
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Li J, Ma W, Ming W, Xu C, Wei N, Wang M. Divergent Reactivity in the Reaction of β-Oxodithioesters and Hydroxylamine: Access to β-Ketonitriles and Isoxazoles. J Org Chem 2015; 80:11138-42. [DOI: 10.1021/acs.joc.5b01869] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiaheng Li
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Wei Ma
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Wenbo Ming
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Cong Xu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Na Wei
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Mang Wang
- Department
of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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32
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In/I2 mediated functional group transformation: a direct approach toward the selective conversion of dithioester to ester. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Ramulu BJ, Nagaraju A, Chowdhury S, Koley S, Singh MS. Copper-catalyzed site-selective S–S and C–C homocoupling of α-enolic dithioesters: straightforward and efficient access to 1,2-dithiols. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Wen LR, Yuan WK, Li M. Dual Roles of β-Oxodithioesters in the Copper-Catalyzed Synthesis of Benzo[e]pyrazolo[1,5-c][1,3]thiazine Derivatives. J Org Chem 2015; 80:4942-9. [DOI: 10.1021/acs.joc.5b00288] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wen-Kui Yuan
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ming Li
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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35
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Ramulu BJ, Nagaraju A, Chowdhury S, Koley S, Singh MS. Metal-Free Reagent Dependent SS and CC Homocoupling of α-Enolic Dithioesters at Room Temperature: Direct Access to Fully Substituted Symmetrical ThiophenesviaChemoselective Paal-Knorr Approach. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400828] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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36
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Wang SW, Guo WS, Wen LR, Li M. Yb(OTf)3 catalyzed [3 + 2] annulations of D–A cyclopropanes with β-oxodithioesters: a regioselective synthesis of tetrahydrothiophenes. RSC Adv 2015. [DOI: 10.1039/c5ra06355h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
An efficient approach to synthesis tetrahydrothiophenes was developed through the reaction of β-oxodithioesters and D–A cyclopropanes catalyzed by Yb(OTf)3. This methodology was highly regioselective.
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Affiliation(s)
- Shu-Wen Wang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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37
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Guo WS, Wen LR, Li M. β-Ketothioamides: efficient reagents in the synthesis of heterocycles. Org Biomol Chem 2015; 13:1942-53. [DOI: 10.1039/c4ob02024c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
β-Ketothioamides (KTAs) are versatile building blocks for the rapid construction of various heterocyclic compounds.
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Affiliation(s)
- Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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38
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Koley S, Chowdhury S, Chanda T, Ramulu BJ, Anand N, Singh MS. Ligand- and Base-Free CuII-Mediated SelectiveS-Arylation of α-Enolic Dithioesters by Chan-Lam Coupling at Room Temperature. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Chowdhury S, Chanda T, Koley S, Anand N, Singh MS. Regioselective Synthesis of Dihydrothiophene and Thiopyran Frameworks via Catalyst-Controlled Intramolecular Cγ/Cδ–S Fusion of α-Allyl-β′-oxodithioesters. Org Lett 2014; 16:5536-9. [DOI: 10.1021/ol502850h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sushobhan Chowdhury
- Department of Chemistry,
Faculty of Science, Banaras Hindu University, Varanasi-221005, India
| | - Tanmoy Chanda
- Department of Chemistry,
Faculty of Science, Banaras Hindu University, Varanasi-221005, India
| | - Suvajit Koley
- Department of Chemistry,
Faculty of Science, Banaras Hindu University, Varanasi-221005, India
| | - Namrata Anand
- Department of Chemistry,
Faculty of Science, Banaras Hindu University, Varanasi-221005, India
| | - Maya Shankar Singh
- Department of Chemistry,
Faculty of Science, Banaras Hindu University, Varanasi-221005, India
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40
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DMAP-promoted cascade C–S/C–N bonds formation approach to 1,3-thiazolidin-4-ones via annulation of β-ketothioamides with α-halocarboxylic acids at room temperature. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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41
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Koley S, Chowdhury S, Chanda T, Ramulu BJ, Nandi GC, Singh MS. Iron-Promoted Domino Annulation of α-Enolic Dithioesters with Ninhydrin under Solvent-Free Conditions: Chemoselective Direct Access to Indeno[1,2-b]thiophenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402276] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Nagaraju A, Shukla G, Srivastava A, Ramulu BJ, Verma GK, Raghuvanshi K, Singh MS. Easy access to α-hydroxyimino-β-oxodithioesters and application towards the synthesis of diverse 1,4-thiazine-3-ones via reduction/annulation cascade. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.097] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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43
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Nagaraju A, Ramulu BJ, Shukla G, Srivastava A, Verma GK, Raghuvanshi K, Singh MS. A facile and straightforward synthesis of 1,2,3-thiadiazoles from α-enolicdithioesters via nitrosation/reduction/diazotization/cyclization cascade in one-pot. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Chowdhury S, Chanda T, Gupta A, Koley S, Ramulu BJ, Jones RCF, Singh MS. Indium(0)-Mediated C sp 3-S/O Cross-Coupling Approach Towards the Regioselective Alkylation of α-Enolic Esters/Dithioesters: A Mechanistic Insight. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301788] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Verma GK, Shukla G, Nagaraju A, Srivastava A, Raghuvanshi K, Singh MS. DMAP-promoted domino annulation of β-ketothioamides with internal alkynes: a highly regioselective access to functionalized 1,3-thiazolidin-4-ones at room temperature. RSC Adv 2014. [DOI: 10.1039/c4ra00131a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
One-pot DMAP-mediated regioselective access to functionalized 1,3-thiazolidin-4-ones has been achieved via annulation of β-ketothioamides with internal alkynes.
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Affiliation(s)
- Girijesh Kumar Verma
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Gaurav Shukla
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Anugula Nagaraju
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Abhijeet Srivastava
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
| | - Keshav Raghuvanshi
- Institut fuer Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Gottingen, Germany
| | - Maya Shankar Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005, India
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46
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Karamthulla S, Pal S, Parvin T, Choudhury LH. L-proline catalyzed multicomponent reactions: facile access to 2H-benzo[g]pyrazolo[3,4-b]quinoline-5,10(4H,11H)-dione derivatives. RSC Adv 2014. [DOI: 10.1039/c4ra00876f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Three component reaction of 2-hydroxy 1,4-naphthoquinones, aldehydes, and aminopyrazoles in the presence of a catalytic amount ofl-proline has been described for the synthesis of a series of 2H-benzo[g]pyrazolo[3,4-b]quinoline-5,10(4H,11H)-dione derivatives.
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Affiliation(s)
- Shaik Karamthulla
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
| | - Suman Pal
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
| | - Tasneem Parvin
- Department of Chemistry
- National Institute of Technology Patna
- Patna-800 005, India
| | - Lokman H. Choudhury
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
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47
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Chowdhury S, Chanda T, Koley S, Ramulu BJ, Jones RCF, Singh MS. Palladium Catalyzed Oxidative Coupling of α-Enolic Dithioesters: A New Entry to 3,4,5-Trisubstituted 1,2-Dithioles via a Double Activation Strategy. Org Lett 2013; 15:5386-9. [DOI: 10.1021/ol402728y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sushobhan Chowdhury
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - Tanmoy Chanda
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - Suvajit Koley
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - B. Janaki Ramulu
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - Raymond C. F. Jones
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - Maya Shankar Singh
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India, and Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
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