1
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Hazra A, Ghosh A, Yadav N, Banerjee P. Organocatalytic (3+3)-cycloaddition of ortho-substituted phenyl nitrones with aryl cyclopropane carbaldehydes: a facile access to enantioenriched 1,2-oxazinanes. Chem Commun (Camb) 2023; 59:11133-11136. [PMID: 37650130 DOI: 10.1039/d3cc02877a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The first asymmetric (3+3)-cycloaddition of ortho-substituted phenyl nitrones with aryl cyclopropane carbaldehydes has been demonstrated by secondary amine catalysts. While the other ortho-substituents gave 1,2-oxazinanes, ortho-hydroxy ones provided a novel class of tetrahydrochromeno-1,2-oxazine cores via rare 1,3-aryl migration, followed by cyclization. An unusual type of asymmetric approach was also recognized.
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Affiliation(s)
- Arijit Hazra
- Lab no-406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab-140001, India.
| | - Asit Ghosh
- Lab no-406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab-140001, India.
| | - Neeraj Yadav
- Lab no-406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab-140001, India.
| | - Prabal Banerjee
- Lab no-406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab-140001, India.
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2
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Fedotov VV, Valieva MI, Taniya OS, Aminov SV, Kharitonov MA, Novikov AS, Kopchuk DS, Slepukhin PA, Zyryanov GV, Ulomsky EN, Rusinov VL, Charushin VN. 4-(Aryl)-Benzo[4,5]imidazo[1,2- a]pyrimidine-3-Carbonitrile-Based Fluorophores: Povarov Reaction-Based Synthesis, Photophysical Studies, and DFT Calculations. Molecules 2022; 27:molecules27228029. [PMID: 36432130 PMCID: PMC9698514 DOI: 10.3390/molecules27228029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
A series of novel 4-(aryl)-benzo[4,5]imidazo[1,2-a]pyrimidine-3-carbonitriles were obtained through the Povarov (aza-Diels-Alder) and oxidation reactions, starting from benzimidazole-2-arylimines. Based on the literature data and X-ray diffraction analysis, it was discovered that during the Povarov reaction, [1,3] sigmatropic rearrangement leading to dihydrobenzimidazo[1,2-a]pyrimidines took place. The structures of all the obtained compounds were confirmed based on the data from 1H- and 13C-NMR spectroscopy, IR spectroscopy, and elemental analysis. For all the obtained compounds, their photophysical properties were studied. In all the cases, a positive emission solvatochromism with Stokes shifts from 120 to 180 nm was recorded. Aggregation-Induced Emission (AIE) has been illustrated for compound 6c using different water fractions (fw) in THF. The compounds 6c and 6f demonstrated changes in emission maxima or/and intensities after mechanical stimulation.
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Affiliation(s)
- Victor V. Fedotov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- Correspondence: (V.V.F.); (O.S.T.)
| | - Maria I. Valieva
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Olga S. Taniya
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- Correspondence: (V.V.F.); (O.S.T.)
| | - Semen V. Aminov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Mikhail A. Kharitonov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Alexander S. Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
| | - Dmitry S. Kopchuk
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Pavel A. Slepukhin
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Grigory V. Zyryanov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Evgeny N. Ulomsky
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Vladimir L. Rusinov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Valery N. Charushin
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
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3
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Vil' V, Grishin S, Baberkina E, Alekseenko A, Glinushkin A, Kovalenko A, Terent'ev A. Electrochemical Synthesis of Tetrahydroquinolines from Imines and Cyclic Ethers via Oxidation/Aza‐Diels‐Alder Cycloaddition. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101355] [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)
- Vera Vil'
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences RUSSIAN FEDERATION
| | - Sergei Grishin
- Zelinsky Institute of Organic Chemistry RAS RUSSIAN FEDERATION
| | - Elena Baberkina
- Dmitry Mendeleev University of Chemical Technology of Russia RUSSIAN FEDERATION
| | - Anna Alekseenko
- Zelinsky Institute of Organic Chemistry RAS RUSSIAN FEDERATION
| | | | - Alexey Kovalenko
- Dmitry Mendeleev University of Chemical Technology of Russia RUSSIAN FEDERATION
| | - Alexander Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences RUSSIAN FEDERATION
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4
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Wu C, Wan J, Song C, He L, Liu H, Li X, Li J, Hu XG, Xiao HP, Jiang J. Yb(OTf) 3 catalyzed [1,3]-rearrangement of 3-alkenyl oxindoles. Org Biomol Chem 2021; 20:122-126. [PMID: 34874368 DOI: 10.1039/d0ob02032j] [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
A Yb(OTf)3 catalyzed [1,3]-rearrangement of 3-alkenyl oxindoles was achieved, affording a variety of multifunctional 3-ylideneoxindoles with good yields and Z/E selectivities (64%-89% yield, 78 : 22->99 : 1 Z/E). Importantly, an operationally simple, one-pot sequential catalytic synthesis of 3-ylideneoxindoles was also developed. Additionally, a cross [1,3]-rearrangement experiment and nonracemic transformation were also carried out, which indicated a concerted rearrangement mechanism of this methodology.
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Affiliation(s)
- Chaofei Wu
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Junlin Wan
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Chao Song
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Lingchen He
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Hongxin Liu
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Xinhua Li
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Juan Li
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Xin-Gen Hu
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Hong-Ping Xiao
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
| | - Jun Jiang
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, PR China.
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5
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Liu M, Li P, Tang X, Luo X, Liu K, Zhang Y, Wang Q, Li G. Lemnardosinanes A-I: New Bioactive Sesquiterpenoids from Soft Coral Lemnalia sp. J Org Chem 2020; 86:970-979. [PMID: 33320671 DOI: 10.1021/acs.joc.0c02463] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two rearranged nardosinane sesquiterpenoids with novel carbon skeletons, lemnardosinanes A (1) and B (2), and seven new nardosinane-related sesquiterpeniod lemnardosinanes C-I (3-9), together with a known compound 6,7-seco-13-nornardosinan (10), were isolated from the soft coral Lemnalia sp. collected from Xisha Islands of the South China Sea. Their structures were elucidated by comprehensive spectroscopic analyses, Mosher's method, Mo2(OAc)4-induced circular dichroism experiment, and quantum chemical calculations. Plausible biosynthetic pathways of 1-10 were proposed. Compounds 1 and 10 displayed in vivo angiogenesis promoting activity in a zebrafish model. Compounds 3 and 4 exhibited antiviral activity against the H1N1 virus with IC50 values of 10.9 and 41.5 μM, respectively.
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Affiliation(s)
- Mingyu Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao 266235, People's Republic of China
| | - Pinglin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao 266235, People's Republic of China
| | - Xuli Tang
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, People's Republic of China
| | - Xiangchao Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao 266235, People's Republic of China
| | - Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 28789, People's Republic of China
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 28789, People's Republic of China
| | - Qi Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao 266235, People's Republic of China.,Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, People's Republic of China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao 266235, People's Republic of China
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6
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Shang L, Feng Y, Gao X, Chen Z, Xia Y, Jin W, Liu C. DMAP‐Catalyzed
C—N Bond Formation for Diverse Synthesis of Imidazo[1,2‐
a
]pyrimidine and Pyrimido[1,2‐
a
]benzimidazole Derivatives. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Le‐Le Shang
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Yun Feng
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Xing‐Lian Gao
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Zi‐Ren Chen
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Yu Xia
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Wei‐Wei Jin
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
| | - Chen‐Jiang Liu
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi Xinjiang 830046 China
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7
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Mandal S, Saha S, Jana CK. Diastereoselective and Reversed Regioselective Annulations of N-Alkyl Anilines to Julolidines and Lilolidines. Org Lett 2020; 22:4883-4887. [PMID: 32519864 DOI: 10.1021/acs.orglett.0c01731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A three-component annulation reaction of N-alkyl anilines, cyclic 1,3-dicarbonyl compounds, and aryl aldehydes to julolidines and lilolidines is reported. The 6π-electrocyclization enabled the annulation to proceed with reversed regioselectivity as compared with the annulation that occurs in the Povarov reaction. Both cyclic and acyclic N-alkyl anilines participated in the reaction to provide a wide range of julolidines and lilolidines as the single regio- and diastereoisomers in good to excellent yields.
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Affiliation(s)
- Sumana Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 780139, India
| | - Subhajit Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 780139, India
| | - Chandan K Jana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 780139, India
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8
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Wu J, Luo H, Wang T, Sun H, Zhang Q, Chai Y. Diverse synthesis of pyrimido[1,2-a]benzimidazoles and imidazo[2,1-b]benzothiazoles via CuI-catalyzed decarboxylic multicomponent reactions of heterocyclic azoles, aldehydes and alkynecarboxylic acids. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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9
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Kong W, Zhou Y, Song Q. Lewis-acid Promoted Chemoselective Condensation of 2-Aminobenzimidazoles or 3-Aminoindazoles with 3-Ethoxycyclobutanones to Construct Fused Nitrogen heterocycles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701641] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Weiguang Kong
- Institute of Next Generation Matter Transformation; College of Chemical Engineering at Huaqiao University; 668 Jimei Blvd Xiamen, Fujian 361021 People's Republic of China
| | - Yao Zhou
- Institute of Next Generation Matter Transformation; College of Chemical Engineering at Huaqiao University; 668 Jimei Blvd Xiamen, Fujian 361021 People's Republic of China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation; College of Chemical Engineering at Huaqiao University; 668 Jimei Blvd Xiamen, Fujian 361021 People's Republic of China
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10
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Yao PHE, Kumar S, Liu YL, Fang CP, Liu CC, Sun CM. Diversity-Oriented Synthesis of Coumarin-Linked Benzimidazoles via a One-Pot, Three-Step, Intramolecular Knoevenagel Cyclization. ACS COMBINATORIAL SCIENCE 2017; 19:271-275. [PMID: 28195456 DOI: 10.1021/acscombsci.7b00004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diversity-oriented synthesis of coumarin-linked benzimidazoles from N-(2-aminophenyl)-2-cyanoacetamide was achieved via a one-pot, three-step sequential reaction in excellent yields. In situ intramolecular cyclization of the cyanoacetamide afforded benzimidazoles which subsequently underwent a Knoevenagel condensation of the 2-cyanomethylbenzimidazoles with salicylaldehydes promoted by triethylamine to reach the target compounds. An important intermediate, 2-(2-imino-2H-chromen-3-yl)-1H-benzimidazole was characterized by X-ray analysis and further hydrolyzed to 2-(coumarin-3-yl)benzimidazole in acidic condition. Among the synthesized compounds, some were found to be promising inhibitors of porcine kidney d-amino acid oxidase (pkDAO).
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Affiliation(s)
- Po-Hsin Eric Yao
- Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Sunil Kumar
- Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Yu-Li Liu
- Center
for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chiu-Ping Fang
- Center
for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chia-Chen Liu
- Center
for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100
Shih-Chuan 1stRoad, Kaohsiung 807-08, Taiwan
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11
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Liberto NA, Simões JB, de Paiva Silva S, da Silva CJ, Modolo LV, de Fátima Â, Silva LM, Derita M, Zacchino S, Zuñiga OMP, Romanelli GP, Fernandes SA. Quinolines: Microwave-assisted synthesis and their antifungal, anticancer and radical scavenger properties. Bioorg Med Chem 2017; 25:1153-1162. [DOI: 10.1016/j.bmc.2016.12.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/12/2016] [Accepted: 12/19/2016] [Indexed: 01/09/2023]
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12
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Zhang L, Zhang B, Jiang T, Lu T, Zhou Q. Synthesis of tricyclic 3-hydroxyisoindolin-1-ones via triethylamine-catalyzed domino reactions of electron-deficient alkynes with phthalimidomalonate derivatives. Org Chem Front 2017. [DOI: 10.1039/c6qo00544f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A triethylamine-catalyzed domino reaction between phthalimidomalonate derivatives and activated alkynes has been developed under mild conditions.
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Affiliation(s)
- Li Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Beichen Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Teng Jiang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Qingfa Zhou
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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13
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Selvaraju M, Dhole S, Sun CM. Three Component Divergent Reactions: Base-Controlled Amphiphilic Synthesis of Benzimidazole-Linked Thiazetidines and Fused Thiadiazines. J Org Chem 2016; 81:8867-8875. [DOI: 10.1021/acs.joc.6b01586] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manikandan Selvaraju
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan, ROC
| | - Sandip Dhole
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan, ROC
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan, ROC
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100
Shih-Chuan First Road, Kaohsiung 807-08, Taiwan, ROC
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14
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Chen LH, Chung TW, Narhe BD, Sun CM. A Novel Mechanistic Study on Ultrasound-Assisted, One-Pot Synthesis of Functionalized Benzimidazo[2,1-b]quinazolin-1(1H)-ones. ACS COMBINATORIAL SCIENCE 2016; 18:162-9. [PMID: 26871300 DOI: 10.1021/acscombsci.5b00186] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ultrasound-assisted synthesis of benzimidazo[2,1-b]quinazolin-1(1H)-ones was achieved via piperidine-catalyzed three-component reaction of 2-aminobenzimidazoles, an aromatic aldehyde, and 1,3-dione in aqueous isopropanol. This mechanism was first suspected following our identification of unusual reaction intermediates in a one-pot reaction. An unprecedented coupling reaction, it involved a nucleophilic attack by 2-aminobenzimidazole on in situ generated Michael adduct, followed by electrocyclic ring formation reaction. In contrast to the commonly accepted mechanism, that the direct reaction of 2-amino benzimidazole with a Knoevenagel adduct cannot deliver target compounds.
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Affiliation(s)
- Li-Hsun Chen
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Tsai-Wen Chung
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Bharat D. Narhe
- 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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15
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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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16
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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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17
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18
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Zanwar MR, Gawande SD, Kavala V, Kuo CW, Yao CF. Iron(III) Chloride Catalyzed Synthesis of Highly Substituted Indolyl-Tetrahydroquinoline Derivatives by Using Indolylnitroalkene as Dienophiles and Its Application to the Synthesis of Indolo-Benzonaphthyridine Derivatives. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400424] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Barve IJ, Chen CH, Kao CH, Sun CM. Regioselective piperidine-catalyzed tandem imination-isocyanate annulation to fused tricyclic triazines. ACS COMBINATORIAL SCIENCE 2014; 16:244-9. [PMID: 24646395 DOI: 10.1021/co400159z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A novel tandem imination-isocyanate-mediated annulation was explored. Ionic liquid-immobilized 2-aminobenzimidazoles react sequentially with aldehydes and isocyanates to give highly functionalized benzimidazole-embedded triazines. The second-stage transformation revealed that the formation of triazinone functionality is entirely regioselective to allow rapid assembly of biologically interesting tricyclic skeletons. In conjunction with the application of microwave irradiation and IL support, this method provides an efficient route to access substituted benzoimidazotriazines.
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Affiliation(s)
- Indrajeet J. Barve
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Chih-Hau Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Chih-Hsien Kao
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
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20
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Hsiao YS, Narhe BD, Chang YS, Sun CM. One-pot, two-step synthesis of imidazo[1,2-a]benzimidazoles via a multicomponent [4 + 1] cycloaddition reaction. ACS COMBINATORIAL SCIENCE 2013; 15:551-5. [PMID: 24016144 DOI: 10.1021/co400075z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A one-pot, two-step synthesis of imidazo[1,2-a]benzimidazoles has been achieved by a three-component reaction of 2-aminobenzimidazoles with an aromatic aldehyde and an isocyanide. The reaction involving condensation of 2-aminobenzimidazole with an aldehyde is run under microwave activation to generate an imine intermediate under basic conditions which then undergoes [4 + 1] cycloaddition with an isocyanide.
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Affiliation(s)
- Ya-Shan Hsiao
- Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Bharat D. Narhe
- Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Ying-Sheng Chang
- Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
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21
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Lin WC, Yang DY. Visible Light Photoredox Catalysis: Synthesis of Indazolo[2,3-a]quinolines from 2-(2-Nitrophenyl)-1,2,3,4-tetrahydroquinolines. Org Lett 2013; 15:4862-5. [DOI: 10.1021/ol402286d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wen-Chung Lin
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan R.O.C
| | - Ding-Yah Yang
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan R.O.C
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22
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Chen LH, Wu TY, Paike V, Sun CM. Palladium-catalyzed regioselective synthesis of 2(2 $$^{\prime }$$ ′ -biphenyl)benzimidazoles through C–H activation. Mol Divers 2013; 17:641-9. [DOI: 10.1007/s11030-013-9460-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 07/04/2013] [Indexed: 11/25/2022]
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23
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Maiti B, Chanda K, Selvaraju M, Tseng CC, Sun CM. Multicomponent solvent-free synthesis of benzimidazolyl imidazo[1,2-a]-pyridine under microwave irradiation. ACS COMBINATORIAL SCIENCE 2013; 15:291-7. [PMID: 23590286 DOI: 10.1021/co400010y] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel one-pot, three-component reaction employing variously substituted benzimidazole-linked amino pyridines, aldehydes, and isonitriles catalyzed by scandium(III) triflate under solvent-free conditions were accomplished. This new synthetic methodology facilitates the rapid generation of intricate molecular frameworks in three-dimensional fashion leading to benzimidazole-imidazo[1,2-a] pyridines. This approach is envisioned as an environmentally benign process and a simple operation to the biological interesting compounds. The present synthetic sequence permits the introduction of three points of structural diversity to expand chemical space with high purity and excellent yields.
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Affiliation(s)
- Barnali Maiti
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Kaushik Chanda
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Manikandan Selvaraju
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Chih-Chung Tseng
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
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24
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Hsu WS, Paike V, Sun CM. One pot three component reaction for the rapid synthesis of pyrrolo[1,2-a]benzimidazoles. Mol Divers 2013; 17:285-94. [DOI: 10.1007/s11030-013-9433-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 02/12/2013] [Indexed: 12/24/2022]
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25
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Selvaraju M, Shiu WS, Kulkarni MV, Sun CM. Ionic liquid supported synthesis of tricyclic pyrimido[1,2-a]benzimidazoles by a telescoped Michael/hetero annulation strategy. RSC Adv 2013. [DOI: 10.1039/c3ra42658k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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26
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Chen LH, Chuang YS, Narhe BD, Sun CM. A concise synthesis of 2-(2-aminothiophene)-benzimidazoles by one-pot multicomponent reaction. RSC Adv 2013. [DOI: 10.1039/c3ra41545g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Ramesh C, Lei PM, Janreddy D, Kavala V, Kuo CW, Yao CF. Synthesis of indolylquinolines, indolylacridines, and indolylcyclopenta[b]quinolines from the Baylis-Hillman adducts: an in situ [1,3]-sigmatropic rearrangement of an indole nucleus to access indolylacridines and indolylcyclopenta[b]quinolines. J Org Chem 2012; 77:8451-64. [PMID: 22967265 DOI: 10.1021/jo301313m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta[b]quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis-Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B-H adducts containing indoles to produce indolylacridines and indolylcyclopenta[b]quinoline derivatives.
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Affiliation(s)
- Chintakunta Ramesh
- Department of Chemistry, National Taiwan Normal University, 88, Section 4, Tingchow Road, Taipei, Taiwan 116, Republic of China
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28
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Chanda K, Maiti B, Tseng CC, Sun CM. Microwave-assisted linear approach toward highly substituted benzo[d]oxazol-5-yl-1H-benzo[d]imidazole on ionic liquid support. ACS COMBINATORIAL SCIENCE 2012; 14:115-23. [PMID: 22263632 DOI: 10.1021/co200188g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A novel and efficient diversity-oriented synthetic approach was employed to access the benzo[d]oxazol-5-yl-1H-benzo[d]imidazole on ionic liquid support, which helps to absorb microwave irradiation. In this paper, we successfully coupled 4-hydroxy-3-nitrobenzoic acid onto ionic liquid-immobilized o-phenylenediamine, which subsequently underwent an acid mediated, ring closure reaction leading to benzimidazole derivatives. After hydrogenation of the nitro group to an amine, the resulting ionic liquid conjugate was reacted with 1,1-thiocarbonyldiimidazols to yield an ionic liquid tagged-benzoxazol. Final skeletal diversity of the present scaffold was further achieved by S-alkylation with alkyl and aryl bromides. The benzo[d]oxazol-5-yl-1H-benzo[d]imidazole was finally cleaved smoothly from the ionic liquid support with sodium methoxide in methanol under microwave irradiation. This methodology has provided access to a small, diverse library by straightforward and simple operations and could be applied readily in various drug discovery programs.
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Affiliation(s)
- Kaushik Chanda
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Barnali Maiti
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Chih-Chung Tseng
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Laboratory of Combinatorial Drug Design, Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300-10, Taiwan
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