1
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Morja MI, Moradiya RB, Chikhalia KH. First-row transition metal for isocyanide-involving multicomponent reactions (IMCR). Mol Divers 2023; 27:2895-2934. [PMID: 36538208 DOI: 10.1007/s11030-022-10583-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/16/2022] [Accepted: 12/04/2022] [Indexed: 12/24/2022]
Abstract
First-row transition metal catalyzed transformations that are able to construct complex molecules from simple, readily obtainable feedstocks have become a keystone of modern synthetic organic chemistry. Particularly, the multicomponent reaction (MCR) involving carbon-carbon (C-C) as well as carbon-heteroatom (C-X) bond formation plays an essential role in many chemical conversions, and insurgencies in these reactions powerfully improve the overall synthetic efficiency. Recently, MCRs emerges rapidly because of its greener sides like eco-friendly nature, swift and straightforward execution, high atom/step economy, and construction of aimed product with lowest or no by-product, usually in quantitative yield. Curiously, the exceptional divalent carbon atoms of isocyanides make them predominantly useful components in multicomponent reactions. As a result of widespread research over the past few decades, numerous well-designed and effective procedures for the first-row TM-catalyzed MCR to afford the various entities have been reported. These aspects are summarized in this review article. A particular focus on comparative discussion of various first-row transition-metal catalyzed isocyanide-based multicomponent reactions through mechanistic details included in the review article.
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Affiliation(s)
- Mayur I Morja
- Department of Chemistry, Government Science College, Vankal, Surat, Gujarat, 394430, India
| | - Riddhi B Moradiya
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, 395007, India
| | - Kishor H Chikhalia
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, 395007, India.
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2
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Olyaei A, Shafie Z, Vessally E. One-pot synthesis of a new series of 2-phenylimidazo[1,2-a]pyridine-3-yl derivatives. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2023.2191205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Zahra Shafie
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
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3
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Anjos NS, Chapina AI, Santos AR, Licence P, Longo LS. Groebke‐Blackburn‐Bienaymé Multicomponent Reaction Catalysed by Reusable Brϕnsted‐Acidic Ionic Liquids. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nicolas S. Anjos
- Department of Pharmaceutical Sciences Federal University of São Paulo – UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
| | - Agáta I. Chapina
- Department of Pharmaceutical Sciences Federal University of São Paulo – UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
| | - Ana R. Santos
- GSK Carbon Neutral Laboratory The University of Nottingham – Jubilee Campus Nottingham NG7 2GA United Kingdom
| | - Peter Licence
- GSK Carbon Neutral Laboratory The University of Nottingham – Jubilee Campus Nottingham NG7 2GA United Kingdom
| | - Luiz S. Longo
- Department of Pharmaceutical Sciences Federal University of São Paulo – UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
- GSK Carbon Neutral Laboratory The University of Nottingham – Jubilee Campus Nottingham NG7 2GA United Kingdom
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4
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Neto BAD, Rocha RO, Rodrigues MO. Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis. Molecules 2021; 27:132. [PMID: 35011363 PMCID: PMC8746711 DOI: 10.3390/molecules27010132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 01/17/2023] Open
Abstract
In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations. Besides improving yields and shortening reaction times, catalysis is vital to achieving greener protocols and to furthering the MCR field of research. Considering that MCRs typically have two or more possible reaction pathways to explain the transformation, catalysis is essential for selecting a reaction route and avoiding byproduct formation. Key parameters, such as temperature, catalyst amounts and reagent quantities, were analyzed. Solvent effects, which are likely the most neglected topic in MCRs, as well as their combined roles with catalysis, are critically discussed. Stereocontrolled MCRs, rarely observed without the presence of a catalytic system, are also presented and discussed in this review. Perspectives on the use of catalytic systems for improved and greener MCRs are finally presented.
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Affiliation(s)
- Brenno A. D. Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Rafael O. Rocha
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Marcelo O. Rodrigues
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
- School of Physics and Astronomy, Nottingham University, Nottingham NG72RD, UK
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5
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Abstract
2-Aminopyridine is a simple, low molecular weight and perfectly functionalised moiety known for the synthesis of diverse biological molecules. Many pharmaceutical companies across the globe aim to synthesise low-molecular weight molecules for use as pharmacophores against various biological targets. 2-Aminopyridine can serve as a perfect locomotive in the synthesis and pulling of such molecules towards respective pharmacological goals. The major advantage of this moiety is its simple design, which can be used to produce single products with minimum side reactions. Moreover, the exact weight of synthesised compounds is low, which enables facile identification of toxicity-causing metabolites in drug discovery programmes. This manuscript is a quick review of such pharmacophores derived from 2-aminopyridine.
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Affiliation(s)
- Ramdas Nishanth Rao
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore 632014, India.
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore 632014, India.
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6
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Yadav UP, Ansari AJ, Arora S, Joshi G, Singh T, Kaur H, Dogra N, Kumar R, Kumar S, Sawant DM, Singh S. Design, synthesis and anticancer activity of 2-arylimidazo[1,2-a]pyridinyl-3-amines. Bioorg Chem 2021; 118:105464. [PMID: 34785441 DOI: 10.1016/j.bioorg.2021.105464] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 12/13/2022]
Abstract
A series of imido-heterocycle compounds were designed, synthesized, characterized, and evaluated for the anticancer potential using breast (MCF-7 and MDA-MB-231), pancreatic (PANC-1), and colon (HCT-116 and HT-29) cancer cell lines and normal cells, while normal cells showed no toxicity. Among the screened compounds, 4h exhibited the best anticancer potential with IC50 values ranging from 1 to 5.5 μM. Compound 4h caused G2/M phase arrest and apoptosis in all the cell lines except MDA-MB-231 mammosphere formation was inhibited. In-vitro enzyme assay showed selective topoisomerase IIα inhibition by compound 4h, leading to DNA damage as observed by fluorescent staining. Cell signalling studies showed decreased expression of cell cycle promoting related proteins while apoptotic proteins were upregulated. Interestingly MDA-MB-231 cells showed only cytostatic effects upon treatment with compound 4h due to defective p53 status. Toxicity study using overexpression of dominant-negative mutant p53 in MCF-7 cells (which have wild type functional p53) showed that anticancer potential of compound 4h is positively correlated with p53 expression.
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Affiliation(s)
- Umesh Prasad Yadav
- Department of Human Genetics and Molecular Medicine, School of Health Sciences Central University of Punjab, Bathinda 151401, India; Department of Biochemistry, All India Institute of Medical Sciences, Patna, India
| | - Arshad J Ansari
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer 305817, India
| | - Sahil Arora
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda 151401, India
| | - Gaurav Joshi
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda 151401, India
| | - Tashvinder Singh
- Department of Human Genetics and Molecular Medicine, School of Health Sciences Central University of Punjab, Bathinda 151401, India
| | - Harsimrat Kaur
- Department of Human Genetics and Molecular Medicine, School of Health Sciences Central University of Punjab, Bathinda 151401, India
| | - Nilambra Dogra
- Centre for Systems Biology & Bioinformatics, Panjab University, Chandigarh 160014, India
| | - Raj Kumar
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda 151401, India.
| | - Santosh Kumar
- Department of Biochemistry, All India Institute of Medical Sciences, Patna, India.
| | - Devesh M Sawant
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer 305817, India.
| | - Sandeep Singh
- Department of Human Genetics and Molecular Medicine, School of Health Sciences Central University of Punjab, Bathinda 151401, India.
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7
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Rao MLN, Islam SS. Copper-catalyzed synthesis of 1-(2-benzofuryl)-N-heteroarenes from o-hydroxy- gem-(dibromovinyl)benzenes and N-heteroarenes. Org Biomol Chem 2021; 19:9076-9080. [PMID: 34622915 DOI: 10.1039/d1ob01765a] [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
An efficient method for the synthesis of 1-(2-benzofuryl)-N-heteroarenes is developed from o-hydroxy-gem-(dibromovinyl)benzenes and N-heteroarenes under copper-catalyzed tandem reaction conditions. This methodology displayed a broad substrate scope and high yields in the preparation of a variety of 1-(2-benzofuryl)-N-heteroarenes. Further, 1-(2-benzofuryl)-N-heteroarenes were also applied in the synthesis of polycyclic benzofuro-indolo-pyridine scaffolds under palladium-catalyzed dehydrogenative coupling conditions. Overall, the present tandem approach is general, synthetically advantageous and avoids air-sensitive reagents.
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Affiliation(s)
- Maddali L N Rao
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
| | - Sk Shamim Islam
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, India.
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8
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Longo LS, Siqueira FA, Anjos NS, Santos GFD. Scandium(III)‐Triflate‐Catalyzed Multicomponent Reactions for the Synthesis of Nitrogen Heterocycles. ChemistrySelect 2021. [DOI: 10.1002/slct.202101032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Luiz S. Longo
- Department of Pharmaceutical Sciences Federal University of São Paulo - UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
| | - Fernanda A. Siqueira
- Department of Chemistry Federal University of São Paulo - UNIFESP Rua Prof. Arthur Riedel 275 09972-270 Diadema SP Brazil
| | - Nicolas S. Anjos
- Department of Pharmaceutical Sciences Federal University of São Paulo - UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
| | - Gabriela F. D. Santos
- Department of Pharmaceutical Sciences Federal University of São Paulo - UNIFESP Rua São Nicolau 210 09913-030 Diadema SP Brazil
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9
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Gulati S, John SE, Shankaraiah N. Microwave-assisted multicomponent reactions in heterocyclic chemistry and mechanistic aspects. Beilstein J Org Chem 2021; 17:819-865. [PMID: 33968258 PMCID: PMC8077743 DOI: 10.3762/bjoc.17.71] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Microwave-assisted (MWA) multicomponent reactions (MCRs) have successfully emerged as one of the useful tools in the synthesis of biologically relevant heterocycles. These reactions are strategically employed for the generation of a variety of heterocycles along with multiple point diversifications. Over the last few decades classical MCRs such as Ugi, Biginelli, etc. have witnessed enhanced yield and efficiency with microwave assistance. The highlights of MWA-MCRs are high yields, reduced reaction time, selectivity, atom economy and simpler purification techniques, such an approach can accelerate the drug discovery process. The present review focuses on the recent advances in MWA-MCRs and their mechanistic insights over the past decade and shed light on its advantage over the conventional approach.
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Affiliation(s)
- Shivani Gulati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Stephy Elza John
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
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10
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Rao RN, Chanda K. An expeditious microwave assisted one-pot sequential route to pyrido fused imidazo[4,5- c] quinolines in green media. NEW J CHEM 2021. [DOI: 10.1039/d0nj05835a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A novel one-pot sequential route for the synthesis of pyrido[2′,1′:2,3]imidazo[4,5-c]quinolines via microwave-assisted sequential reaction of 2-aminopyridines, 2-bromophenacyl bromides, and aldehydes has been developed in green media.
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Affiliation(s)
- Ramdas Nishanth Rao
- Department of Chemistry
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
| | - Kaushik Chanda
- Department of Chemistry
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
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11
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Bifunctional C2-symmetric ionic liquid-supported (S)-proline as a recyclable organocatalyst for Mannich reactions in neat condition. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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12
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Mathavan S, B. R. D. Yamajala R. Sustainable Synthetic Approaches for 3‐Aminoimidazo‐fused Heterocycles viaGroebke‐Blackburn‐Bienaymé Process. ChemistrySelect 2020. [DOI: 10.1002/slct.202002894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sivagami Mathavan
- Department of chemistry, School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
| | - Rajesh B. R. D. Yamajala
- Department of chemistry, School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
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13
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Ishwar Bhat S. One‐Pot Construction of Bis‐Heterocycles through Isocyanide Based Multicomponent Reactions. ChemistrySelect 2020. [DOI: 10.1002/slct.202002154] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Subrahmanya Ishwar Bhat
- Department of Chemistry N. M. A. M. Institute of Technology, (Visvesvaraya Technological University, Belagavi) Nitte 574110, Udupi District Karnataka India
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14
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Patel DB, Rajani DP, Rajani SD, Patel HD. A green synthesis of quinoline‐4‐carboxylic derivatives using
p
‐toluenesulfonic acid as an efficient organocatalyst under microwave irradiation and their docking, molecular dynamics, ADME‐Tox and biological evaluation. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3848] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Dhaval B. Patel
- Department of Chemistry, School of SciencesGujarat University Ahmedabad India
| | - Dhanji P. Rajani
- Microcare Laboratory and Tuberculosis Research Centre Surat India
| | - Smita D. Rajani
- Microcare Laboratory and Tuberculosis Research Centre Surat India
| | - Hitesh D. Patel
- Department of Chemistry, School of SciencesGujarat University Ahmedabad India
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15
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Hussain M, Liu J, Fu L, Hasan M. Synthesis of imidazo[1, 2‐a]pyridines via the silver acetate‐catalyzed Groebke‐Blackburn‐Bienayme reaction with ethylene glycol as a biodegradable and sustainable solvent. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Mustafa Hussain
- State key laboratory of fine chemicalDalian University of Technology Dalian People's Republic of China
| | - Jianhui Liu
- State key laboratory of fine chemicalDalian University of Technology Dalian People's Republic of China
- School of Petroleum and Chemical EngineeringDalian University of Technology, Panjin Campus Panjin Liaoning Province People's Republic of China
| | - Lu Fu
- School of Petroleum and Chemical EngineeringDalian University of Technology, Panjin Campus Panjin Liaoning Province People's Republic of China
| | - Mehdi Hasan
- Department of ChemistryUniversity of Baltistan Skardu Pakistan
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16
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Mukku N, Maiti B. On water catalyst-free synthesis of benzo[ d]imidazo[2,1- b] thiazoles and novel N-alkylated 2-aminobenzo[ d]oxazoles under microwave irradiation. RSC Adv 2020; 10:770-778. [PMID: 35494448 PMCID: PMC9047639 DOI: 10.1039/c9ra08929b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022] Open
Abstract
A highly efficient unprecedented catalyst-free microwave-assisted procedure for synthesizing benzo[d]imidazo[2,1-b]thiazoles and N-alkylated 2-aminobenzo[d]oxazol in green media was developed. The transformation provided rapid access to functionalized benzo[d]imidazo[2,1-b]thiazoles from 2-aminobenzothiazole and N-alkylated 2-aminobenzo[d]oxazole from 2-aminobenzoxazole scaffolds under mild transition-metal-free conditions. This synthetic manipulation is expected to greatly expand the repertoire of reaction types in heterocyclic chemistry and pave the way for new syntheses of bioactive compounds. A highly efficient unprecedented catalyst-free microwave-assisted procedure for synthesizing benzo[d]imidazo[2,1-b]thiazoles and N-alkylated 2-aminobenzo[d]oxazol in green media was developed.![]()
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Affiliation(s)
- Narasimharao Mukku
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore-632014 India
| | - Barnali Maiti
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore-632014 India
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17
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Soni JP, Chemitikanti KS, Joshi SV, Shankaraiah N. The microwave-assisted syntheses and applications of non-fused single-nitrogen-containing heterocycles. Org Biomol Chem 2020; 18:9737-9761. [PMID: 33211792 DOI: 10.1039/d0ob01779e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microwave technology has emerged as a great tool for the efficient synthesis of organic compounds and it provides opportunities for chemists to achieve chemical transformations that tend to be challenging using classical approaches. Additionally, N-heterocycles are well-known for their medicinal/biological significance, along with their applications as excellent building blocks in chemical synthesis. The dominance of N-heterocycles in drug molecules and other pharmacological agents makes them attractive scaffolds, which encourages chemists to develop a wide range of strategies towards the greener synthesis and functionalization of these heterocycles. In this regard, we have collated and discussed literature relating to the microwave-assisted synthesis and the modification of non-(benzo)fused single-nitrogen-containing N-heterocycles from the past decade. The role of the microwave technique and its benefits over the conventional approach have also been emphasized in terms of overall reaction efficiency, reaction time, yield, reduced side-product generation, neat and clean reactions, chemo-/regio-/enantio-selectivity, and the use of mild reagents/reaction conditions to achieve the objectives of green and sustainable chemistry.
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Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
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18
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Boltjes A, Dömling A. The Groebke-Blackburn-Bienaymé Reaction. EUROPEAN JOURNAL OF CHEMISTRY (PRINT) 2019; 2019:7007-7049. [PMID: 34012704 PMCID: PMC8130801 DOI: 10.1002/ejoc.201901124] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/23/2022]
Abstract
Imidazo[1,2-a]pyridine is a well-known scaffold in many marketed drugs, such as Zolpidem, Minodronic acid, Miroprofen and DS-1 and it also serves as a broadly applied pharmacophore in drug discovery. The scaffold revoked a wave of interest when Groebke, Blackburn and Bienaymé reported independently a new three component reaction resulting in compounds with the imidazo[1,2-a]-heterocycles as a core structure. During the course of two decades the Groebke Blackburn Bienaymé (GBB-3CR) reaction has emerged as a very important multicomponent reaction (MCR), resulting in over a hundred patents and a great number of publications in various fields of interest. Now two compounds derived from GBB-3CR chemistry received FDA approval. To celebrate the first 20 years of GBB-chemistry, we present an overview of the chemistry of the GBB-3CR, including an analysis of each of the three starting material classes, solvents and catalysts. Additionally, a list of patents and their applications and a more in-depth summary of the biological targets that were addressed, including structural biology analysis, is given.
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Affiliation(s)
- André Boltjes
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, Groningen, The Netherlands
| | - Alexander Dömling
- Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, Groningen, The Netherlands
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19
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Reen GK, Kumar A, Sharma P. Recent advances on the transition-metal-catalyzed synthesis of imidazopyridines: an updated coverage. Beilstein J Org Chem 2019; 15:1612-1704. [PMID: 31435443 PMCID: PMC6664406 DOI: 10.3762/bjoc.15.165] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/28/2019] [Indexed: 12/21/2022] Open
Abstract
A comprehensive account of recent advances in the synthesis of imidazopyridines, assisted through transition-metal-catalyzed multicomponent reactions, C-H activation/functionalization and coupling reactions are highlighted in this review article. The basic illustration of this review comprises of schemes with concise account of explanatory text. The schemes depict the reaction conditions along with a quick look into the mechanism involved to render a deep understanding of the catalytic role. At some instances optimizations of certain features have been illustrated through tables, i.e., selectivity of catalyst, loading of the catalyst and percentage yield with different substrates. Each of the reported examples has been rigorously analyzed for reacting substrates, reaction conditions and transition metals used as the catalyst. This review will be helpful to the chemists in understanding the challenges associated with the reported methods as well as the future possibilities, both in the choice of substrates and catalysts. This review would be quite appealing to a wider range of organic chemists in academia and industrial R&D sectors working in the field of heterocyclic syntheses. In a nutshell, this review will be a guiding torch to envisage: (i) the role of various transition metals in the domain dedicated towards method development and (ii) for the modifications needed thereof in the R&D sector.
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Affiliation(s)
| | - Ashok Kumar
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
| | - Pratibha Sharma
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
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20
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Vairaperumal V, Perumal M, Sengodu P, Shanumuganthan S, Paramasivam M. V
2
O
5
‐Catalyzed One‐Pot Multicomponent of Pyrazol Naphthoquinone as Scaffolds for Potential Bioactive Compounds: Synthesis, Structural Study and Cytotoxic Activity. ChemistrySelect 2019. [DOI: 10.1002/slct.201803942] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Prakash Sengodu
- Department of ChemistryAlagappa University Karaikudi- 630003 India
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21
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Berrino E, Supuran CT. Advances in microwave-assisted synthesis and the impact of novel drug discovery. Expert Opin Drug Discov 2018; 13:861-873. [DOI: 10.1080/17460441.2018.1494721] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Emanuela Berrino
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, University of Florence, Sesto Fiorentino (Florence), Italy
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, University of Florence, Sesto Fiorentino (Florence), Italy
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22
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Dinne NKR, Mekala R, Reddy SP, Sesha Siva GY, Kothapalli Bannoath C. Wang resin-supported sulfonic acid-catalyzed multicomponent reaction in water leading to 4-oxo-4,5,6,7-tetrahydroindole derivatives. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1458240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Naresh Kumar Reddy Dinne
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Limited, Miyapur, Hyderabad, Telangana, India
- College of Engineering, Jawaharlal Nehru Technological University Anantapur, Ananthapuramu, Andhra Pradesh, India
| | - Ramamohan Mekala
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Limited, Miyapur, Hyderabad, Telangana, India
| | - S. Pulla Reddy
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Limited, Miyapur, Hyderabad, Telangana, India
| | - Ganesh Yaddanapudi Sesha Siva
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Limited, Miyapur, Hyderabad, Telangana, India
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23
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Wu TY, Dhole S, Selvaraju M, Sun CM. Regioselective Synthesis of Pyranone-Fused Indazoles via Reductive Cyclization and Alkyne Insertion. ACS COMBINATORIAL SCIENCE 2018; 20:156-163. [PMID: 29381854 DOI: 10.1021/acscombsci.7b00170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel and efficient method for the one-pot synthesis of 2 H-indazole from readily available building blocks is reported. The reaction of 2-nitrobenzylamines with zinc and ammonium formate underwent partial reduction to nitroso-benzylamine followed by an intramolecular cyclization to afford 2 H-indazole via N-N bond formation. The carboxylic acid moiety of indazole was proceeded to regioselective alkyne insertion under ruthenium catalysis to form pyranone-fused indazoles. The regioselectivity is influenced by the weak coordination of indazole ring nitrogen to the metal center.
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Affiliation(s)
- Tz-Yi Wu
- Department of Applied Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Sandip Dhole
- Department of Applied Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Manikandan Selvaraju
- Department of Applied Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100, Shih-Chuan first Road, Kaohsiung 807-08, Taiwan
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24
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Rao RN, MM B, Maiti B, Thakuria R, Chanda K. Efficient Access to Imidazo[1,2- a]pyridines/pyrazines/pyrimidines via Catalyst-Free Annulation Reaction under Microwave Irradiation in Green Solvent. ACS COMBINATORIAL SCIENCE 2018; 20:164-171. [PMID: 29373013 DOI: 10.1021/acscombsci.7b00173] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
An expeditious catalyst-free heteroannulation reaction for imidazo[1,2- a]pyridines/pyrimidines/pyrazines was developed in green solvent under microwave irradiation. Using H2O-IPA as the reaction medium, various substituted 2-aminopyridines/pyrazines/pyrimidines underwent annulation reaction with α-bromoketones under microwave irradiation to provide the corresponding imidazo[1,2- a]pyridines/pyrimidines/pyrazines in excellent yields. The synthetic methodology appears to be very simple and superior to the already reported procedures with the high abundance of commercial reagents and great ability in expanding the molecular diversity. The present synthetic sequence is visualized as an environmentally benign process which allows the introduction of three points of structural diversity to expand chemical space with excellent purity and yields. The anti-inflammatory and antimicrobial activities of the derivatives were evaluated. Screening results uncovered three derivatives with strong inhibition of albumin denaturation and two derivatives were active on Proteus and Klebsiella bacteria. These positive bioassay results implied that the library of potential anti-inflammatory agents could be rapidly prepared in an ecofriendly manner, and provided new insights into drug discovery for medicinal chemists.
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Affiliation(s)
- R. Nishanth Rao
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India
| | - Balamurali MM
- Department of Chemistry, School of Advanced Sciences, VIT University, Chennai-632014, India
| | - Barnali Maiti
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati-781014, India
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India
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25
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Ashitha K, Praveen Kumar V, Fathimath Salfeena C, Sasidhar BS. BF3·OEt2-Mediated Tandem Annulation: A Strategy To Construct Functionalized Chromeno- and Pyrano-Fused Pyridines. J Org Chem 2017; 83:113-124. [DOI: 10.1021/acs.joc.7b02463] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K.T. Ashitha
- Chemical Sciences and Technology
Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695 019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, India
| | - V. Praveen Kumar
- Chemical Sciences and Technology
Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695 019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, India
| | - C.T. Fathimath Salfeena
- Chemical Sciences and Technology
Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695 019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, India
| | - B. S. Sasidhar
- Chemical Sciences and Technology
Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695 019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, India
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26
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Ye TY, Selvaraju M, Sun CM. Cascade Synthesis of Benzimidazole-Linked Pyrroles via Copper Catalyzed Oxidative Cyclization and Ketonization. Org Lett 2017; 19:3103-3106. [DOI: 10.1021/acs.orglett.7b01224] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tzuen-Yang Ye
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Manikandan Selvaraju
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Applied
Chemistry, National Chiao-Tung University, 1001, Ta-Hseuh Road, Hsinchu 300-10, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100, Shih-Chuan First Road, Kaohsiung 807-08, Taiwan
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27
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Murlykina MV, Kornet MN, Desenko SM, Shishkina SV, Shishkin OV, Brazhko AA, Musatov VI, Van der Eycken EV, Chebanov VA. New tricks of well-known aminoazoles in isocyanide-based multicomponent reactions and antibacterial activity of the compounds synthesized. Beilstein J Org Chem 2017; 13:1050-1063. [PMID: 28684984 PMCID: PMC5480327 DOI: 10.3762/bjoc.13.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 05/02/2017] [Indexed: 12/19/2022] Open
Abstract
The well-known aminoazoles, 3-amino-5-methylisoxazole and 5-amino-N-aryl-1H-pyrazole-4-carboxamides, were studied as an amine component in Ugi and Groebke-Blackburn-Bienaymé multicomponent reactions. The first example of an application of aminoazoles in an Ugi four-component reaction was discovered and novel features of a Groebke-Blackburn-Bienaymé cyclocondensation are established and discussed. The heterocycles obtained were evaluated for their antibacterial activity and several of them demonstrated a weak antimicrobial effect, but for most of the compounds a 30-50% increase in biomass of Gram-positive strains (mainly B. subtilis) compared to control was observed.
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Affiliation(s)
- Maryna V Murlykina
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Maryna N Kornet
- Laboratory of Biotechnology of Physiologically Active Substances, Zaporizhzhya National University, Zhukovsky str., 66, 69600, Zaporizhzhya, Ukraine
| | - Sergey M Desenko
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
- Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
| | - Svetlana V Shishkina
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
- Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
| | - Oleg V Shishkin
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
| | - Aleksander A Brazhko
- Laboratory of Biotechnology of Physiologically Active Substances, Zaporizhzhya National University, Zhukovsky str., 66, 69600, Zaporizhzhya, Ukraine
| | - Vladimir I Musatov
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Valentin A Chebanov
- Division of Chemistry of Functional Materials, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Nauky Ave., 60, 61001, Kharkiv, Ukraine
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
- Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody sq., 4, 61077, Kharkiv, Ukraine
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28
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Ghandi M, Moshtaghi P, Abbasi A. Catalyst-free synthesis of 3-hydroxyimidazo[1,2- a ]pyridine zwitterion derivatives via the three-component reaction of ethyl glyoxalate, 2‑aminopyridines and cyclic 1,3-dicarbonyls. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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29
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Kumar M, Sribalan R, Padmini V. Er(OTf)3Assisted Efficient Synthesis of 3-Hydroxynaphthalene-1, 4-Dione DerivativesviaPseudo Four-Component Reactions and Their Biological Evaluation. ChemistrySelect 2017. [DOI: 10.1002/slct.201601340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Madasamy Kumar
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
| | - Rajendran Sribalan
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
| | - Vediappen Padmini
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
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30
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Mani GS, Shaik SP, Tangella Y, Bale S, Godugu C, Kamal A. A facile I2-catalyzed synthesis of imidazo[1,2-a]pyridines via sp3 C–H functionalization of azaarenes and evaluation of anticancer activity. Org Biomol Chem 2017; 15:6780-6791. [DOI: 10.1039/c7ob01384a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A three component synthetic protocol has been developed for the synthesis of medicinally important imidazo[1,2-a]pyridines via the iodine-catalyzed oxidative amination of benzylic C–H bonds of azaarenes. The synthesized compounds were evaluated for their anti-cancer activity.
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Affiliation(s)
- Geeta Sai Mani
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
| | - Siddiq Pasha Shaik
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Yellaiah Tangella
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Swarna Bale
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Chandraiah Godugu
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Ahmed Kamal
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
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31
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Lin WH, Wu WC, Selvaraju M, Sun CM. One-pot synthesis of benzazoles and quinazolinones via iron pentacarbonyl mediated carbonylation of aryl iodides under microwave irradiation. Org Chem Front 2017. [DOI: 10.1039/c6qo00733c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct and unconventional method for the synthesis of benzazoles and quinazolinones is discovered by using iron pentacarbonyl as a reducing agent and a solid carbon monoxide source under microwave irradiation.
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Affiliation(s)
- Wun-Huei Lin
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Wen-Chun Wu
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Manikandan Selvaraju
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Chung-Ming Sun
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
- Department of Medicinal and Applied Chemistry
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32
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In(OTf)3-HBF4Assisted Multicomponent Approach for One-Pot Synthesis of Pyrazolopyridinone Fused Imidazopyridines. ChemistrySelect 2016. [DOI: 10.1002/slct.201601133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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33
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Ajani OO, Aderohunmu DV, Ikpo CO, Adedapo AE, Olanrewaju IO. Functionalized Benzimidazole Scaffolds: Privileged Heterocycle for Drug Design in Therapeutic Medicine. Arch Pharm (Weinheim) 2016; 349:475-506. [PMID: 27213292 DOI: 10.1002/ardp.201500464] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 01/09/2023]
Abstract
Benzimidazole derivatives are crucial structural scaffolds found in diverse libraries of biologically active compounds which are therapeutically useful agents in drug discovery and medicinal research. They are structural isosteres of naturally occurring nucleotides, which allows them to interact with the biopolymers of living systems. Hence, there is a need to couple the latest information with the earlier documentations to understand the current status of the benzimidazole nucleus in medicinal chemistry research. This present work unveils the benzimidazole core as a multifunctional nucleus that serves as a resourceful tool of information for synthetic modifications of old existing candidates in order to tackle drug resistance bottlenecks in therapeutic medicine. This manuscript deals with the recent advances in the synthesis of benzimidazole derivatives, the widespread biological activities as well as pharmacokinetic reports. These present them as a toolbox for fighting infectious diseases and also make them excellent candidates for future drug design.
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Affiliation(s)
- Olayinka O Ajani
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Damilola V Aderohunmu
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Chinwe O Ikpo
- Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Adebusayo E Adedapo
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
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34
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Ansari AJ, Sharma S, Pathare RS, Gopal K, Sawant DM, Pardasani RT. Solvent-free Multicomponent Synthesis of Biologically-active Fused-imidazo Heterocycles Catalyzed by Reusable Yb(OTf)3Under Microwave Irradiation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600241] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Arshad J. Ansari
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Shivani Sharma
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Ramdas S. Pathare
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Kandasamy Gopal
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Devesh M. Sawant
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - R. T. Pardasani
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
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35
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Selvaraju M, Ye TY, Li CH, Ho PH, Sun CM. Copper catalyzed aerobic oxidative cyclization and ketonization: one pot synthesis of benzoimidazo[1,2-a]imidazolones. Chem Commun (Camb) 2016; 52:6621-4. [DOI: 10.1039/c6cc01828a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A highly efficient synthesis of benzoimidazo[1,2-a]imidazolone through a novel oxidative 5-exo-dig cyclization-ketonization cascade of 2-aminobenzimidazole, aldehyde and terminal alkyne has been explored under aerobic conditions.
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Affiliation(s)
- Manikandan Selvaraju
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Tzuen-Yang Ye
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Chia-Hsin Li
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
- Department of Medicinal and Applied Chemistry
| | - Pei-Heng Ho
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
| | - Chung-Ming Sun
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300-10
- Republic of China
- Department of Medicinal and Applied Chemistry
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36
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Maiti B, Chanda K. Diversity oriented synthesis of benzimidazole-based biheterocyclic molecules by combinatorial approach: a critical review. RSC Adv 2016. [DOI: 10.1039/c6ra06930d] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Because of the wide ranging bioactivities associated with the benzimidazole nucleus, this review highlights the advances made in the synthesis of benzimidazole-based biheterocyclic molecules by combinatorial approaches.
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Affiliation(s)
- Barnali Maiti
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
| | - Kaushik Chanda
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
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37
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Lei S, Chen G, Mai Y, Chen L, Cai H, Tan J, Cao H. Regioselective Copper-Catalyzed Oxidative Cross-Coupling of Imidazo[1,2-a]pyridines with Methyl Ketones: An Efficient Route for Synthesis of 1,2-Diketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500803] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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38
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SnCl2·2H2O as a precatalyst in MCR: synthesis of pyridine derivatives via a 4-component reaction in water. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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39
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Dhole S, Selvaraju M, Maiti B, Chanda K, Sun CM. Microwave Controlled Reductive Cyclization: A Selective Synthesis of Novel Benzimidazole-alkyloxypyrrolo[1,2-a]quinoxalinones. ACS COMBINATORIAL SCIENCE 2015; 17:310-6. [PMID: 25897944 DOI: 10.1021/acscombsci.5b00010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient cascade synthesis of novel benzimidazole linked alkyloxypyrrolo[1,2-a]quinoxalinones was explored on soluble polymer support under microwave irradiation. Two exclusive protocols have been developed for the partial and full reductive cyclization by controlling the microwave energy. Commencing from the same substrate, ortho nitro pyrrol carboxylates, N-hydroxy pyrroloquinoxalinones were obtained by partial reductive cyclization (60 °C, 7 min), and the synthesis of pyrroloquinoxalinones was accomplished by full reductive cyclization (85 °C, 12 min). This method represents the first synthesis of N-hydroxy pyrroloquinoxalinones using Pd/C and ammonium formate as reducing agents. Further employing a variety of alkyl bromides, the obtained pyrroloquinoxalinones were transformed to their corresponding O- and N-alkylated analogues to deliver the diversified, novel molecular entities.
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Affiliation(s)
- Sandip Dhole
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Manikandan Selvaraju
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Barnali Maiti
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Kaushik Chanda
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100,
Shih-Chuan first Road, Kaohsiung 807-08, Taiwan
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40
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Microwave-assisted solvent-free synthesis of imidazo[1,2-a]pyridines via a three-component reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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41
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Selvaraju M, Sun CM. Unprecedented one-pot chemocontrolled entry to thioxoimidazolidinones and aminoimidazolones: synthesis of kinase inhibitor leucettamine B. ACS COMBINATORIAL SCIENCE 2015; 17:182-9. [PMID: 25569559 DOI: 10.1021/co500152s] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel and highly chemoselective protocol for the construction of thioxoimidazolidinone and aminoimidazolone frameworks was explored, and the influence of the reaction conditions on product formation was studied to establish two distinct approaches for their selective formation. In this one-pot reaction, ambient temperature generally resulted in the formation of thioxoimidazolidinones, whereas microwave irradiation provided aminoimidazolones exclusively. An attempt to elucidate the observed chemoselectivity is described, and the products were confirmed by X-ray studies. One-pot synthesis toward Leucettamine B, a marine alkaloid, was achieved on the basis of this protocol.
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Affiliation(s)
- Manikandan Selvaraju
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100,
Shih-Chuan 1st Road, Kaohsiung 807-08, Taiwan
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42
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Wang YC, Xie YY, Tan XC, Wang HS, Pan YM. Sc(OTf)3-mediated 1,3-dipolar cycloaddition-ring cleavage-rearrangement: a highly stereoselective access to Z-β-enaminonitriles. Org Biomol Chem 2015; 13:513-9. [PMID: 25375635 DOI: 10.1039/c4ob01801j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and highly stereoselective synthesis of Z-β-enaminonitriles from azides and α,β-unsaturated nitriles is reported. The reaction proceeds via a 1,3-dipolar cycloaddition-ring cleavage-rearrangement cascade mediated by a catalytic amount of Sc(OTf)3. A plausible reaction mechanism for this process is depicted.
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Affiliation(s)
- Ying-chun Wang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry & Chemical Engineering of Guangxi Normal University, Guilin 541004, People's Republic of China.
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43
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Synthesis of imidazo[1,2-a]pyridin-chromones by a MW assisted Groebke–Blackburn–Bienaymé process. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.047] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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44
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Mouradzadegun A, Ma'mani L, Mahdavi M, Rashid Z, Shafiee A, Foroumadi A, Dianat S. Sulfamic acid-functionalized hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles as a magnetically recoverable catalyst for synthesis of N-fused imidazole-quinoline conjugates under solvent-free conditions. RSC Adv 2015. [DOI: 10.1039/c5ra12307k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
γ-Fe2O3-HAp-(CH2)3-NHSO3H was shown to be a powerful and reusable catalyst for the synthesis of N-fused imidazole-quinoline conjugates under solvent-free conditions.
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Affiliation(s)
- Arash Mouradzadegun
- Department of Chemistry
- Faculty of Sciences
- Shahid Chamran University
- Ahvaz
- Iran
| | - Leila Ma'mani
- Nanotechnology Department
- Agricultural Biotechnology Research Institute of Iran (ABRII)
- Karaj
- Iran
| | - Mohammad Mahdavi
- Department of Medical Chemistry
- Faculty of Pharmacy and Pharmaceutical Science Research Center
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Zahra Rashid
- Nanobiotechnology Research Center
- Avicenna Research Institute
- ACECR
- Tehran
- Iran
| | - Abbas Shafiee
- Department of Medical Chemistry
- Faculty of Pharmacy and Pharmaceutical Science Research Center
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Alireza Foroumadi
- Department of Medical Chemistry
- Faculty of Pharmacy and Pharmaceutical Science Research Center
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Shima Dianat
- Department of Chemistry
- Faculty of Sciences
- Shahid Chamran University
- Ahvaz
- Iran
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45
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Wadhwa P, Kaur T, Sharma A. The first catalyst and solvent-free synthesis of 2-arylimidazo[2,1-b][1,3,4]thiadiazoles: a comparative assessment of greenness. RSC Adv 2015. [DOI: 10.1039/c5ra06747b] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one-pot, three-component, catalyst and solvent free synthesis of imidazo[2,1-b][1,3,4]thiadiazoles utilizing 5-aryl-1,3,4-thiadiazol-2-amines, aldehydes and isonitriles has been developed. The “greenness” was successfully evaluated within the ambits of green metrics.
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Affiliation(s)
- Preeti Wadhwa
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Tanpreet Kaur
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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46
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Devi N, Rawal RK, Singh V. Diversity-oriented synthesis of fused-imidazole derivatives via Groebke–Blackburn–Bienayme reaction: a review. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.10.032] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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47
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Kaswan P, Pericherla K, Rajnikant, Kumar A. Synthesis of 3-aroylimidazo[1,2-a]pyridines via CuCl2 catalyzed tandem dual carbon–nitrogen bonding. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.067] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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48
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He X, Shang Y, Yu Z, Fang M, Zhou Y, Han G, Wu F. FeCl3-Catalyzed Four-Component Nucleophilic Addition/Intermolecular Cyclization Yielding Polysubstituted Pyridine Derivatives. J Org Chem 2014; 79:8882-8. [DOI: 10.1021/jo5014383] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xinwei He
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Yongjia Shang
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Zhiyu Yu
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Mei Fang
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Yao Zhou
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Guang Han
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Fuli Wu
- Key Laboratory
of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
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49
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Maleki A, Javanshir S, Naimabadi M. Facile synthesis of imidazo[1,2-a]pyridines via a one-pot three-component reaction under solvent-free mechanochemical ball-milling conditions. RSC Adv 2014. [DOI: 10.1039/c3ra43221a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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50
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Synthesis of novel 5-phenylimidazo[1,2-c]quinazolin-3-amine derivatives via Groebke–Blackburn–Bienaymé multicomponent reaction. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1204-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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