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Mishra D, Loukrakpam DC, Neog SR, Hazarika D, Phukan P. A Switchable Protocol for Selective Synthesis of
gem
‐Dibromo Compounds and Amides from Ketoximes using TsNBr
2. ChemistrySelect 2022. [DOI: 10.1002/slct.202203449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Debashish Mishra
- Department of Chemistry Gauhati University Guwahati 781014 Assam India
| | | | - Smriti Rekha Neog
- Department of Chemistry Gauhati University Guwahati 781014 Assam India
| | - Debojit Hazarika
- Department of Chemistry Gauhati University Guwahati 781014 Assam India
| | - Prodeep Phukan
- Department of Chemistry Gauhati University Guwahati 781014 Assam India
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2
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Skolia E, Apostolopoulou MK, Nikitas NF, Kokotos CG. Photochemical Synthesis of Benzimidazoles from Diamines and Aldehydes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Elpida Skolia
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Mary K. Apostolopoulou
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Nikolaos F. Nikitas
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
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3
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Kambappa V, Kotturappa C, Manjunath R, Shivaramu P. Biginelli‐type reaction: Efficient synthesis of 5‐unsubstituted 3,4‐dihydropyrimidin‐2‐ones and thiones from
gem
‐dibromomethylarenes. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vinaya Kambappa
- Department of ChemistryGovernment First Grade College Kadur India
| | | | | | - Prasanna Shivaramu
- Department of NanotechnologyVisvesvaraya Technological University, Center for Postgraduate Studies, Bengaluru Region Chikkaballapur India
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4
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Vinaya K, Chandrashekara GK, Shivaramu PD. One-pot synthesis of 3,5-diaryl substituted-1,2,4-oxadiazoles using gem-dibromomethylarenes. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0333] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
1,2,4-Oxadiazole is one of the most promising heterocyclic ring systems in medicinal chemistry. In the present paper, we report the method for an efficient one-pot synthesis of 3,5-diaryl substituted 1,2,4-oxadiazoles using a two-component reaction of gem-dibromomethylarenes with amidoximes in good yields. In this method, gem-dibromomethylarenes are used as benzoic acid equivalents for the efficient synthesis of aryl-substituted 1,2,4-oxadiazoles. It is anticipated that this methodology will have versatile applications in the practical syntheses of various molecules of both medicinal and material chemistry importance.
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Affiliation(s)
- Kambappa Vinaya
- Department of Chemistry, Government First Grade College, Kadur — 577548, India
| | | | - Prasanna D. Shivaramu
- Department of Nanotechnology, Visvesvaraya Technological University, Bengaluru Region, Muddenahalli, Chikkaballapur — 562101, India
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5
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Narasimhamurthy KH, Sajith AM, S. Rangappa K. Synthetic utility of gem-dibromomethylarenes in organic synthesis. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1604968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Ayyiliath M. Sajith
- Postgraduate and Research Department of Chemistry, Government College Kasaragod, Kannur University, Kasaragod, India
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6
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Bala M, Verma PK, Sharma D, Kumar N, Singh B. Highly efficient water-mediated approach to access benzazoles: metal catalyst and base-free synthesis of 2-substituted benzimidazoles, benzoxazoles, and benzothiazoles. Mol Divers 2015; 19:263-72. [DOI: 10.1007/s11030-015-9572-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 02/22/2015] [Indexed: 11/29/2022]
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7
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Swaroop TR, Sharath Kumar KS, Palanivelu M, Chaitanya S, Rangappa KS. A Catalyst-free Green Protocol for the Synthesis of Pyranopyrazoles Using Room Temperature Ionic Liquid Choline Chloride-urea. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1864] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Mariyappan Palanivelu
- Department of Chemistry, Gurunanak College; University of Madras; Madras 600042 India
| | - Somu Chaitanya
- Department of Studies in Chemistry; University of Mysore; Manasagangothri Mysore 570 006 India
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8
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Nandeesh KN, Raghavendra GM, Revanna CN, Jenifer Vijay TA, Rangappa KS, Mantelingu K. Recyclable, Graphite-Catalyzed, Four-Component Synthesis of Functionalized Pyrroles. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.848368] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- K. N. Nandeesh
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
| | - G. M. Raghavendra
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
| | - C. N. Revanna
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
| | - T. A. Jenifer Vijay
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
| | - K. S. Rangappa
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
| | - K. Mantelingu
- a Department of Studies in Chemistry , University of Mysore , Mysore , India
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9
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Revanna CN, Raghavendra GM, Vijay TAJ, Rangappa KS, Badregowda DG, Mantelingu K. Propylphosphonic Anhydride-catalyzed Tandem Approach for Biginelli Reaction Starting from Alcohols. CHEM LETT 2014. [DOI: 10.1246/cl.130732] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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10
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Narasimhamurthy KH, Chandrappa S, Sharath Kumar KS, Harsha KB, Ananda H, Rangappa KS. Easy access for the synthesis of 2-aryl 2,3-dihydroquinazolin-4(1H)-ones using gem-dibromomethylarenes as synthetic aldehyde equivalent. RSC Adv 2014. [DOI: 10.1039/c4ra02312a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One step synthesis of 2,3-dihydroquinazolin-4(1H)-ones from gem-dibromomethylarenes and 2-aminobenzamide.
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Affiliation(s)
| | | | | | | | - Hanumappa Ananda
- Department of Studies in Chemistry
- University of Mysore
- Mysore-570006, India
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11
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Qiu D, Wei H, Zhou L, Zeng Q. Synthesis of benzimidazoles by copper-catalyzed aerobic oxidative domino reaction of 1,2-diaminoarenes and arylmethyl halides. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.3089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dezhi Qiu
- Institute of Green Catalysis and Synthesis, College of Materials and Chemistry and Chemical Engineering; Chengdu University of Technology; Chengdu 610059 China
| | - Haidong Wei
- Institute of Green Catalysis and Synthesis, College of Materials and Chemistry and Chemical Engineering; Chengdu University of Technology; Chengdu 610059 China
| | - Lihong Zhou
- Institute of Green Catalysis and Synthesis, College of Materials and Chemistry and Chemical Engineering; Chengdu University of Technology; Chengdu 610059 China
| | - Qingle Zeng
- Institute of Green Catalysis and Synthesis, College of Materials and Chemistry and Chemical Engineering; Chengdu University of Technology; Chengdu 610059 China
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12
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13
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Ramesha AB, Raghavendra GM, Nandeesh KN, Rangappa KS, Mantelingu K. Tandem approach for the synthesis of imidazo[1,2-a]pyridines from alcohols. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.112] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Cankařová N, Krchňák V. Polymer-Supported Stereoselective Synthesis of Benzimidazolinopiperazinones. J Org Chem 2012; 77:5687-95. [DOI: 10.1021/jo300836c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Naděžda Cankařová
- Department
of Organic Chemistry,
Institute of Molecular and Translational Medicine, Faculty of Science, Palacký University, 17. Listopadu 12, 771 46
Olomouc, Czech Republic
| | - Viktor Krchňák
- Department
of Organic Chemistry,
Institute of Molecular and Translational Medicine, Faculty of Science, Palacký University, 17. Listopadu 12, 771 46
Olomouc, Czech Republic
- Department of Chemistry and
Biochemistry, 251 Nieuwland Science Center, University of Notre Dame, Notre Dame, Indiana 46556, United States
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15
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Carvalho LCR, Fernandes E, Marques MMB. Developments Towards Regioselective Synthesis of 1,2-Disubstituted Benzimidazoles. Chemistry 2011; 17:12544-55. [DOI: 10.1002/chem.201101508] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Kim J, Kim J, Lee H, Lee BM, Kim BH. Indium-mediated one-pot benzimidazole synthesis from 2-nitroanilines or 1,2-dinitroarenes with orthoesters. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Siddappa C, Kambappa V, Umashankara M, Rangappa KS. One-pot approach for the synthesis of 2-aryl benzothiazoles via a two-component coupling of gem-dibromomethylarenes and o-aminothiophenols. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Raghavendra GM, Ramesha AB, Revanna CN, Nandeesh KN, Mantelingu K, Rangappa KS. One-pot tandem approach for the synthesis of benzimidazoles and benzothiazoles from alcohols. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.037] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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