1
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Sun S, Ye H, Liu H, Li J, Bi X. Iron-Catalyzed Sulfonylmethylation of Imidazo[1,2-α]pyridines with N, N-Dimethylacetamide and Sodium Sulfinates. Molecules 2024; 29:3196. [PMID: 38999150 PMCID: PMC11243443 DOI: 10.3390/molecules29133196] [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: 05/15/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/14/2024] Open
Abstract
Functionalized imidazo[1,2-α]pyridines are important scaffolds in pharmaceuticals. Herein, we present an efficient 3-sulfonylmethylation protocol for imidazo[1,2-α]pyridines by sodium sulfinates in DMA and H2O (2:1) via an FeCl3-catalyzed three-component coupling reaction. Various sulfonylmethyl imidazo[1,2-α]pyridines were thus afforded in high yields with excellent functional group tolerance. A plausible oxidation-addition mechanism was proposed.
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Affiliation(s)
- Shengnan Sun
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Hexia Ye
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Haibo Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Junchen Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
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2
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Dalai PG, Swain S, Panda N. DMSO-DCE Triggered Chemodivergent C-Methylenation of Electron-Rich Arenes: An Easy Access to Diarylmethanes. J Org Chem 2024; 89:2599-2604. [PMID: 38293774 DOI: 10.1021/acs.joc.3c02612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The chemodivergent property of dimethyl sulfoxide (DMSO) along with 1,2-dichloroethane (DCE) was exploited for the incorporation of a methylene group to form diarylmethanes through a dearomatization/rearomatization process. Methyl(methylene)sulfonium ions (CH2=S+-Me) were generated by simple heating of commonly used solvents such as DMSO and DCE. These ions were subsequently trapped by electron-rich arenes and heteroarenes, resulting in the synthesis of both symmetrical and unsymmetrical diarylmethanes. This protocol was further extended to access N-methylenamides by reacting 2-naphthol with amides or nitriles in the presence of DMSO and DCE.
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Affiliation(s)
- Pallaba Ganjan Dalai
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Swayamprava Swain
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Niranjan Panda
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
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3
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Guo T, Hu P, Liu Y, Zhang P, Zhao Y, Zhu C. Ketosulfonylmethylenation and sulfonylethyleneation of imidazoheterocycles with dimethylformamide as a methylene source. Chem Commun (Camb) 2023; 59:12455-12458. [PMID: 37781868 DOI: 10.1039/d3cc03850e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
A hitherto unreported ketosulfonylmethylenation occurring at the C-3 position of imidazoheterocycles, with dimethylformamide as the methylene source was described. Using CoCl2·6H2O or Fe(acac)3 as efficient and inexpensive catalysts, some important biologically active methylenated compounds were prepared, with high efficacy, favorable functional group compatibilities, and a broad substrate scope.
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Affiliation(s)
- Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Penghua Hu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Panke Zhang
- Green Catalysis Center, College of Chemistry, Henan Advanced Institute of Technology, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yunhui Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Congjun Zhu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
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4
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Tali JA, Shankar R. Ru(II)-Catalyzed Synthesis of Fused Imidazo[1,2- a]pyridine-chromenones and Methylene-Tethered Bis-imidazo[1,2- a]pyridines and Regioselective O-Acetoxylation of Imidazo[1,2- a]pyridines. Org Lett 2023; 25:3200-3205. [PMID: 37140128 DOI: 10.1021/acs.orglett.3c00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Herein, we disclose an unprecedented protocol via ruthenium-catalyzed annulation for the synthesis of 6H-chromeno[4',3':4,5]imidazo[1,2-a]pyridin-6-one, and functionalized 2-(3-formylimidazo[1,2-a]pyridin-2-yl)phenyl acetate has been revealed by intramolecular chelation-assisted C-H activation. Additionally, a one-pot approach for creating bis(2-phenylimidazo[1,2-a]pyridin-3-yl)methane (BIP) has been realized through ruthenium catalysis with the use of formic acid. This method was used in gram-scale synthesis of BIP and step-economical late-stage functionalization of a marketed drug, zolimidine, in good yield.
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Affiliation(s)
- Javeed Ahmad Tali
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Ravi Shankar
- Academy of Scientific and Industrial Research (AcSIR), Ghaziabad 201002, India
- Natural Product & Medicinal Chemistry, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
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5
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Xiao F, Yang G, Yao L, Mao G, Deng G. Fe‐Catalyzed Three‐Component Reaction for the Synthesis of 2,3'‐Biquinolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Zeng M, Liu YX, Zheng JH, Zhao L, Zhu QH, Jiang D, Ling Y, Liu W, Zeng SX. Direct α-methylenation of triazines to terminal olefins with DMA. NEW J CHEM 2022. [DOI: 10.1039/d2nj04417j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We report an efficient metal (Cu or Ni)-catalysed α-methylenation of triazines to terminal olefins using DMA as a one-carbon source. Various substituted triazine derivatives are suitable for this reaction.
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Affiliation(s)
- Ming Zeng
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Yi-xuan Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Jian-hui Zheng
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Lan Zhao
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Qi-han Zhu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Dengzhao Jiang
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Yun Ling
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Wenbo Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Shen-xin Zeng
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 311399, China
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7
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Kalari S, Shinde AU, Rode HB. Methylene-Tethered Arylsulfonation and Benzotriazolation of Aryl/Heteroaryl C-H Bonds with DMSO as a One-Carbon Surrogate. J Org Chem 2021; 86:17684-17695. [PMID: 34851649 DOI: 10.1021/acs.joc.1c01914] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The Selectfluor-mediated approach toward the synthesis of methylene-tethered arylsulfonation and benzotriazolation of imidazopyridines has been described. The reaction involves imidazopyridine, aryl sulfinate, or benzotriazole and dimethyl sulfoxide (DMSO) in the presence of Selectfluor, where DMSO acts as a one-carbon synthon. The protocol has been extended to the methylene-tethered arylsulfonation and benzotriazolation of β-naphthols. The mechanistic insights show that the intermediate 3-((methylthio)methyl)-2-phenylimidazo[1,2-a]pyridine is generated from imidazopyridine, DMSO, and Selectfluor. The nucleophilic displacement by the aryl sulfinate salt or benzotriazole on the intermediate afforded the product.
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Affiliation(s)
- Saradhi Kalari
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201 002, India
| | - Akash U Shinde
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Haridas B Rode
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201 002, India
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8
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Franco MS, Saba S, Rafique J, Braga AL. KIO
4
‐mediated Selective Hydroxymethylation/Methylenation of Imidazo‐Heteroarenes: A Greener Approach. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marcelo Straesser Franco
- Departamento de Química Universidade Federal de Santa Catarina—UFSC Florianópolis 88040-900 SC-Brazil
| | - Sumbal Saba
- Instituto de Química Universidade Federal de Goiás—UFG Goiânia 74690-900 GO-Brazil
| | - Jamal Rafique
- Instituto de Química, Universidade Federal do Mato Grosso do Sul—UFMS Campo Grande 79074-460 MS-Brazil
| | - Antonio Luiz Braga
- Departamento de Química Universidade Federal de Santa Catarina—UFSC Florianópolis 88040-900 SC-Brazil
- Department of Chemical Sciences Faculty of Science University of Johannesburg Doornfontein 2028 South Africa
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9
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Franco MS, Saba S, Rafique J, Braga AL. KIO 4 -mediated Selective Hydroxymethylation/Methylenation of Imidazo-Heteroarenes: A Greener Approach. Angew Chem Int Ed Engl 2021; 60:18454-18460. [PMID: 34097781 DOI: 10.1002/anie.202104503] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/14/2021] [Indexed: 02/06/2023]
Abstract
Herein, we report a KIO4 -mediated, sustainable and chemoselective approach for the one-pot C(sp2 )-H bond hydroxymethylation or methylenation of imidazo-heteroarenes with formaldehyde, generated in situ via the oxidative cleavage of ethylene glycol or glycerol (renewable reagents) through the Malaprade reaction. In the presence of ethylene glycol, a series of 3-hydroxymethyl-imidazo-heteroarenes was obtained in good to excellent yields. These compounds are important intermediates to access pharmaceutical drugs, e.g., Zolpidem. Furthermore, by using glycerol, bis(imidazo[1,2-a]pyridin-3-yl)methane derivatives were selectively obtained in good to excellent yields.
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Affiliation(s)
- Marcelo Straesser Franco
- Departamento de Química, Universidade Federal de Santa Catarina-UFSC, Florianópolis, 88040-900, SC-Brazil
| | - Sumbal Saba
- Instituto de Química, Universidade Federal de Goiás-UFG, Goiânia, 74690-900, GO-Brazil
| | - Jamal Rafique
- Instituto de Química, Universidade, Federal do Mato Grosso do Sul-UFMS, Campo Grande, 79074-460, MS-Brazil
| | - Antonio Luiz Braga
- Departamento de Química, Universidade Federal de Santa Catarina-UFSC, Florianópolis, 88040-900, SC-Brazil.,Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein, 2028, South Africa
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10
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Konwar D, Bora U. Recent Developments in Transition‐Metal‐Catalyzed Regioselective Functionalization of Imidazo[1, 2‐
a
]pyridine. ChemistrySelect 2021. [DOI: 10.1002/slct.202100144] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dipika Konwar
- Department of Chemical Sciences Tezpur University, Napaam, Tezpur PIN 784028 Assam India
| | - Utpal Bora
- Department of Chemical Sciences Tezpur University, Napaam, Tezpur PIN 784028 Assam India
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11
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Kumar R, Rawat D, Semwal R, Badhani G, Adimurthy S. Hypervalent iodine mediated synthesis of imidazo[1,2- a]pyridine ethers: consecutive methylene linkage and insertion of ethylene glycol. NEW J CHEM 2021. [DOI: 10.1039/d1nj00657f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Hypervalent iodine mediated selective synthesis of imidazo[1,2-a]pyridine ethers using ethylene glycol as a methoxy ethanol source as well as solvent under metal-free conditions is described.
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Affiliation(s)
- Rahul Kumar
- Academy of Scientific & Innovative Research Ghaziabad
- CSIR–Central Salt & Marine Chemicals Research Institute
- G. B. Marg
- Bhavnagar-364002
- India
| | - Deepa Rawat
- Academy of Scientific & Innovative Research Ghaziabad
- CSIR–Central Salt & Marine Chemicals Research Institute
- G. B. Marg
- Bhavnagar-364002
- India
| | - Rashmi Semwal
- Academy of Scientific & Innovative Research Ghaziabad
- CSIR–Central Salt & Marine Chemicals Research Institute
- G. B. Marg
- Bhavnagar-364002
- India
| | - Gaurav Badhani
- Academy of Scientific & Innovative Research Ghaziabad
- CSIR–Central Salt & Marine Chemicals Research Institute
- G. B. Marg
- Bhavnagar-364002
- India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research Ghaziabad
- CSIR–Central Salt & Marine Chemicals Research Institute
- G. B. Marg
- Bhavnagar-364002
- India
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12
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Copper Ferrite Superparamagnetic Nanoparticle-Catalyzed Cross-coupling Reaction to Form Diindolylmethane (DIM): Effect of Experimental Parameters. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2020. [DOI: 10.9767/bcrec.15.3.8228.631-640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Superparamagnetic copper ferrite (CuFe2O4) nanoparticles were utilized as a heterogenous catalyst for the cross-coupling reaction of indole to form 3,3’-diindolylmethane (DIM) as the desirable product. High reaction yield, at around 82%, was achieved under optimal conditions. The CuFe2O4 material could be easily separated from the reaction mixture by an external magnetic field and could be reutilized several times without a significant decrease in catalytic activity. We also showed that no sites of catalyst material leached into reaction solution was detected. To our best knowledge, the above cross-coupling reaction was not previously conducted under catalysis of superparamagnetic nanoparticles. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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13
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Affiliation(s)
- Debasish Sarmah
- Department of Chemical SciencesTezpur University, Napaam Tezpur Assam India, Pin 784028
| | - Utpal Bora
- Department of Chemical SciencesTezpur University, Napaam Tezpur Assam India, Pin 784028
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14
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Kumar R, Rawat D, Adimurthy S. Polyethylene Glycol (PEG-400) as Methylene Spacer and Green Solvent for the Synthesis of Heterodiarylmethanes under Metal-Free Conditions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000467] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rahul Kumar
- Academy of Scientific & Innovative Research; CSIR-Central Salt & Marine Chemicals Research Institute; G.B. Marg; 364 002 Bhavnagar Gujarat India
| | - Deepa Rawat
- Academy of Scientific & Innovative Research; CSIR-Central Salt & Marine Chemicals Research Institute; G.B. Marg; 364 002 Bhavnagar Gujarat India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research; CSIR-Central Salt & Marine Chemicals Research Institute; G.B. Marg; 364 002 Bhavnagar Gujarat India
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15
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Tashrifi Z, Mohammadi-Khanaposhtani M, Larijani B, Mahdavi M. C3-Functionalization of Imidazo[1,2-a
]pyridines. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901491] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zahra Tashrifi
- Endocrinology and Metabolism Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran I.R. Iran
| | | | - Bagher Larijani
- Endocrinology and Metabolism Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran I.R. Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran I.R. Iran
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16
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Xu X, Zhou Z, Wang Z, Ma X, Chen X, Zhang X, Yu X, Yi W. Cobalt(III)‐Catalyzed and Dimethyl Sulfoxide‐Involved Cross‐Coupling of Ketones and Amides for Direct Synthesis of
β
‐Amino Ketones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900717] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xuefeng Xu
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
| | - Zhipin Wang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xinna Ma
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xin Chen
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xu Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xiyong Yu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
| | - Wei Yi
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
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17
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Liu Y, Wang CL, Xia HM, Wang Z, Wang YF. Direct Csp 3-H methylenation of 2-arylacetamides using DMF/Me 2NH-BH 3 as the methylene source. Org Biomol Chem 2019; 17:6153-6157. [PMID: 31169277 DOI: 10.1039/c9ob00875f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A direct Csp3-H methylenation of 2-arylacetamides using DMF/Me2NH-BH3 as the methylene source was developed. The formyl group of DMF delivered the carbon and one hydrogen atoms, and the Me2NH-BH3 donated the remaining one hydrogen atom. This protocol offers a new alternative to make useful 2-arylacrylamides from simple starting materials.
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Affiliation(s)
- Yuting Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China.
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18
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Kumar Verma P, Vishwakarma RA, Sawant SD. Reaction Medium as the Installing Reservoir for Key Functionalities in the Molecules. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Praveen Kumar Verma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Ram A. Vishwakarma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Sanghapal D. Sawant
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
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19
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Li N, Bai J, Zheng X, Rao H. Formation of Methylene Linkage for N-Heterocycles: Sequential C–H and C–O Bond Functionalization of Methanol with Cosolvent Water. J Org Chem 2019; 84:6928-6939. [DOI: 10.1021/acs.joc.9b00729] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Na Li
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Jinku Bai
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Xiaolin Zheng
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Honghua Rao
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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20
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Tian LL, Lu S, Zhang ZH, Huang EL, Yan HT, Zhu X, Hao XQ, Song MP. Copper-Catalyzed Double Thiolation To Access Sulfur-Bridged Imidazopyridines with Isothiocyanate. J Org Chem 2019; 84:5213-5221. [DOI: 10.1021/acs.joc.9b00186] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lu-Lu Tian
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Shuai Lu
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Zhe-Hua Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - En-Ling Huang
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Hua-Ting Yan
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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21
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1423] [Impact Index Per Article: 237.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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22
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Gao Y, Zhou D, Ma Y. α-Csp3
-H Methylenation of Diketones to Synthesize Methylene-Bridged Bis-1,3-Dicarbonyl Compounds and Polysubstituted Pyridines Using the DMSO/Selectfluor System. ChemistrySelect 2018. [DOI: 10.1002/slct.201801996] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yejun Gao
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
| | - Dongheng Zhou
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
| | - Yongmin Ma
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
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23
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Sathyamoorthi S, Banerjee S. Peroxydisulfate as an Oxidant in the Site-Selective Functionalization of sp3
C-H Bonds. ChemistrySelect 2017. [DOI: 10.1002/slct.201702090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shyam Sathyamoorthi
- Stanford University; Department of Chemistry; 333 Campus Drive Stanford CA 94305-4401 USA
| | - Shibdas Banerjee
- Indian Institute of Science Education and Research, Tirupati; Department of Chemistry; Karakambadi Road Tirupati- 517507 India
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24
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Shakoor SMA, Agarwal DS, Khullar S, Mandal SK, Sakhuja R. Solvent-Driven Iodine-Mediated Oxidative Strategies for the Synthesis of Bis(imidazo[1,2-a
]pyridin-3-yl)sulfanes and Disulfanes. Chem Asian J 2017; 12:3061-3068. [DOI: 10.1002/asia.201701274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/25/2017] [Indexed: 11/06/2022]
Affiliation(s)
- S. M. Abdul Shakoor
- Department of Chemistry; Birla Institute of Technology & Science; Pilani Rajasthan 333031 India
| | - Devesh S. Agarwal
- Department of Chemistry; Birla Institute of Technology & Science; Pilani Rajasthan 333031 India
| | - Sadhika Khullar
- Department of Chemistry; D.A.V. University, Jalandhar-; Pathankot National Highway Jalandhar- 144012 Punjab India
| | - Sanjay K. Mandal
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Sector 81, S.A.S. Nagar, Manuali P.O. Punjab 140306 India
| | - Rajeev Sakhuja
- Department of Chemistry; Birla Institute of Technology & Science; Pilani Rajasthan 333031 India
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25
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Yan Y, Li Z, Li H, Cui C, Shi M, Liu Y. Alkyl Ether as a One-Carbon Synthon: Route to 2,4-Disubstituted 1,3,5-Triazines via C–H Amination/C–O Cleavage under Transition-Metal-Free Conditions. Org Lett 2017; 19:6228-6231. [DOI: 10.1021/acs.orglett.7b03171] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yizhe Yan
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
- Collaborative
Innovation Center of Food Production and Safety, Zhengzhou, Henan Province 450000, P. R. China
| | - Zheng Li
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
| | - Hongyi Li
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
| | - Chang Cui
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
| | - Miaomiao Shi
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
| | - Yanqi Liu
- School
of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, P. R. China
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26
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Shakoor SMA, Mandal SK, Sakhuja R. An Articulate Oxidative Transition-Metal-Free Homocoupling of Imidazo Heterocycles through C(sp2
)-C(sp2
) Bond Formation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700238] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- S. M. Abdul Shakoor
- Department of Chemistry; Birla Institute of Technology & Science; 333031 Pilani Rajasthan India
| | - Sanjay K. Mandal
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Sector 81, S.A.S. Nagar 140306 Manuali P. O. Punjab India
| | - Rajeev Sakhuja
- Department of Chemistry; Birla Institute of Technology & Science; 333031 Pilani Rajasthan India
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27
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Ravi C, Adimurthy S. Synthesis of Imidazo[1,2‐a]pyridines: C‐H Functionalization in the Direction of C‐S Bond Formation. CHEM REC 2017; 17:1019-1038. [DOI: 10.1002/tcr.201600146] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/27/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Chitrakar Ravi
- Natural Products & Green ChemistryCSIR-Central Salt & Marine Chemicals Research Institute G.B. Marg, Bhavnagar-364002 Gujarat India
| | - Subbarayappa Adimurthy
- Natural Products & Green ChemistryCSIR-Central Salt & Marine Chemicals Research Institute G.B. Marg, Bhavnagar-364002 Gujarat India
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28
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Deb ML, Borpatra PJ, Pegu CD, Thakuria R, Saikia PJ, Baruah PK. Iodine/tert-Butyl Hydroperoxide-Mediated Reaction of Indoles with Dimethylformamide/Dimethylacetamide to Synthesize Bis- and Tris(indolyl)methanes. ChemistrySelect 2017. [DOI: 10.1002/slct.201601857] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Paran J. Borpatra
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Choitanya Dev Pegu
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Ranjit Thakuria
- Department of Chemistry; Gauhati University; Guwahati- 781014 Assam India
| | - Prakash J. Saikia
- Analytical Chemistry Division; CSIR-NEIST; Jorhat- 785006, Assam India
| | - Pranjal K. Baruah
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
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29
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Deb ML, Borpatra PJ, Saikia PJ, Baruah PK. Introducing tetramethylurea as a new methylene precursor: a microwave-assisted RuCl3-catalyzed cross dehydrogenative coupling approach to bis(indolyl)methanes. Org Biomol Chem 2017; 15:1435-1443. [DOI: 10.1039/c6ob02671k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The microwave-assisted synthesis of symmetrical/unsymmetrical bis(indolyl)methanes using tetramethylurea as a methylene source.
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Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Paran J. Borpatra
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | | | - Pranjal K. Baruah
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
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30
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Devi N, Singh D, Kaur G, Mor S, Putta VPRK, Polina S, Malakar CC, Singh V. In(OTf)3 assisted synthesis of β-carboline C-3 tethered imidazo[1,2-a]azine derivatives. NEW J CHEM 2017. [DOI: 10.1039/c6nj03210a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthesis of β-carboline based natural products and synthetic derivatives is one of the frontier areas of research owing to their medicinal properties.
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Affiliation(s)
- Nisha Devi
- Department of Chemistry
- National Institute of Technology (NIT) Jalandhar
- India
| | - Dharmender Singh
- Department of Chemistry
- National Institute of Technology (NIT) Jalandhar
- India
| | - Gurpreet Kaur
- Department of Chemistry
- National Institute of Technology (NIT) Jalandhar
- India
| | - Satbir Mor
- Department of Chemistry
- GJ University of Science and Technology Hisar
- India
| | | | - Saibabu Polina
- Department of Medicinal Chemistry
- Jubilant Biosys
- Bangalore
- India
| | - Chandi C. Malakar
- Department of Chemistry
- National Institute of Technology (NIT) Manipur
- Imphal
- India
| | - Virender Singh
- Department of Chemistry
- National Institute of Technology (NIT) Jalandhar
- India
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31
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Nandwana NK, Dhiman S, Saini HK, Kumar I, Kumar A. Synthesis of Quinazolinones, Imidazo[1,2-c
]quinazolines and Imidazo[4,5-c
]quinolines through Tandem Reductive Amination of Aryl Halides and Oxidative Amination of C(sp3
)-H Bonds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601329] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nitesh Kumar Nandwana
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Shiv Dhiman
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Hitesh Kumar Saini
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Indresh Kumar
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Anil Kumar
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
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32
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Deb ML, Saikia BS, Borah K, Baruah PK. C-C bond cleavage: Metal-free-catalyzed reaction of Betti bases with various heterocycles under microwave irradiation. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1239740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, India
| | - B.-Shriya Saikia
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, India
| | - Kongkona Borah
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, India
| | - Pranjal K. Baruah
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, India
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33
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Patel OPS, Anand D, Maurya RK, Yadav PP. H2O2/DMSO-Promoted Regioselective Synthesis of 3,3'-Bisimidazopyridinylmethanes via Intermolecular Oxidative C(sp(2))-H Bond Activation of Imidazoheterocycles. J Org Chem 2016; 81:7626-34. [PMID: 27487477 DOI: 10.1021/acs.joc.6b01355] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the past decade, metal-free approaches for C-C bond formation have attracted a great deal of attention due to their ease of use and low cost. This report represents a novel and metal-free synthesis of 3,3'-bisimidazopyridinylmethanes via intermolecular oxidative C(sp(2))-H bond functionalization of imidazo[1,2-a]pyridines with dimethyl sulfoxide as the carbon synthon (CH2) using H2O2 as a mild oxidant under air. A library of 3,3'-bis(2-arylimidazo[1,2-a]pyridin-3-yl)methanes has been achieved in good to excellent yields. The present methodology has been successfully applied to imidazo[2,1-b]thiazoles and imidazo[2,1-b]benzothiazoles. Furthermore, the current approach was also extended for the synthesis of unsymmetrical 3,3'-bisimidazopyridinylmethanes under optimized reaction conditions. A mechanistic pathway is proposed on the basis of experiments with radical scavengers and DMSO-d6 and ESI-MS observations.
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Affiliation(s)
- Om P S Patel
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute , BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Devireddy Anand
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute , BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Rahul K Maurya
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute , BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Prem P Yadav
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute , BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
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