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Karimian A, Karimi Z. Synthesis of A Novel Heterocyclic System of 3,8-Disubstituted-5 H-Pyrimido[5’,4’:5,6][1,4]Thiazino[3,2- e][1,2,4]Triazine. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1784242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Azam Karimian
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
| | - Zahra Karimi
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
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Vatankhah E, Akbarzadeh M, Jabbari A, Saadat K, Shiri A. Synthesis and Characterization of Various Novel Derivatives of Dipyrimido[4,5-b:4',5'-e][1,4]thiazepine and Their Theoretical Evaluation as 15-Lipoxygenase Inhibitor. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2014536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Effat Vatankhah
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Marzieh Akbarzadeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Atena Jabbari
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Kayvan Saadat
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ali Shiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Karimian A, Emarloo N, Salari S. The mineral alum: an effective and low-cost heterogeneous catalyst for the successful synthesis of 5-substituted-1 H-tetrazoles. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2020.1762220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Azam Karimian
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
| | - Nahid Emarloo
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
| | - Samira Salari
- Department of Environmental Health Engineering, School of Health, Gonabad University of Medica Sciences, Gonabad, Iran
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Karimian A, Namvar-Mhaboub M, Abbasi R. Methionine-Coated Fe3O4 Nanoparticles: An Efficient and Reusable Nanomagnetic Catalyst for the Synthesis of 5-Substituted 1H-Tetrazoles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020090237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Robust approach leading to novel densely functionalized four-cyclic benzo[e]pyrazolo[5′,1′:2,3]pyrimido[4,5-b][1,4]diazepines with antibacterial activity toward resistant strains. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01875-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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New efficient design and synthesis of novel antioxidant and antifungal 7-imino[1,3]selenazolo[4,5-d]pyrimidine-5(4H)-thiones utilizing a base-promoted cascade addition/cyclization sequence. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02617-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Afrough T, Bakavoli M, Eshghi H, Tajabadi J, Mague J. Regioselective synthesis of new 5H,10H-dipyrimido[2,1-b:4′,5′-d][1,3]thiazine: a combined experimental and computational study. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1576685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Toktam Afrough
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Javad Tajabadi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Joel Mague
- Department of Chemistry, Tulane University, New Orleans, USA
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Karimian A. Synthesis of New Pyrimido[5′,4′:5,6][1,4]thiazino[2,3-b]quinoxaline Derivatives in One Step. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3082] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Azam Karimian
- Department of Chemistry, Faculty of Science; University of Gonabad; Gonabad Iran
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Karimian A, Karimian H. Synthesis of new derivatives of 4-(4-methyl-5 H-pyrimido[4,5- b][1,4]thiazin-2-yl)morpholine and 4-methyl-2-(piperidin-1-yl)-5 H-pyrimido[4,5- b][1,4]thiazine. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x14967701767049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Several derivatives of the novel 4-(4-methyl-5 H-pyrimido[4,5- b][1,4]thiazin-2-yl)morpholine and 4-methyl-2-(piperidin-1-yl)-5 H-pyrimido[4,5- b][1,4]thiazine ring systems have been synthesised through cyclocondensation of 5-amino-6-methylpyrimidine-4-thiols and the appropriate α-haloketone in glacial acetic acid under reflux.
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Affiliation(s)
- Azam Karimian
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
| | - Hassan Karimian
- Department of Environment, Faculty of Environment, University of Tehran, Tehran, Iran
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Firoozi N, Bakavoli M, Eshghi H, Ramezanian N. Regioselective synthesis of new 5-methyl-5H-pyrimido[4′,5′:4,5][1,3]thiazino [3,2-a]perimidines. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1318877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Neda Firoozi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Navid Ramezanian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Mozafari S, Shiri A, Bakavoli M, Akbarzadeh M, Saadat K, Etemadi Y. Synthesis and Density Functional Theory Study of [1,2,3]Triazolo[4,5-d][1,2,4] Triazolo[4,3-a]Pyrimidine Derivatives: A Novel Heterocyclic System. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14743011878429] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Several 3H-[1,2,3]triazolo[4,5-d][1,2,4]triazolo[4,3-a]pyrimidine derivatives of a novel ring system have been synthesised. The initial substitution of the 4-Cl function of 2,4-dichloro-6-methylpyrimidin-5-amine with benzylamine followed by treatment with sodium nitrite generated 3-benzyl-5-chloro-7-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine. Nucleophilic substitution of the 5-Cl moiety of the latter compound with hydrazine hydrate and subsequent treatment with carbon disulfide in boiling pyridine gave, quantitatively, the corresponding [1,2,3]triazolo[4,5-d][1,2,4]triazolo[4,3-a]pyrimidine derivatives. Density functional theory (DFT) studies were also performed to reveal regioselectivity of the ring closure via Gauge-Independent Atomic Orbital (GIAO) 1H NMR calculations. The WP04 method was used as the DFT code to yield accurate chemical shift values. Theoretical results correlated well with the expected regioisomer and aided assignment of the final structure.
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Affiliation(s)
- Sarinasadat Mozafari
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Ali Shiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Marzieh Akbarzadeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Kayvan Saadat
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Yasaman Etemadi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
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Synthesis of novel 3-substituted-5H-benzo[5,6][1, 4]thiazino[3,2-e][1,2,4]triazines and their 15-lipoxygenase inhibitory activity. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0870-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Moradi H, Eshghi H, Bakavoli M. Synthesis of Thiazolo[5,4- d][1,2,4]Triazolo[4,3- a]Pyrimidines as a New Class of Heterocyclic Compounds. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14598638014154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new series of 2-aminothia zolo[5,4- d]pyrimidines has been synthesised by treating various amines with the new intermediate, 2,5-dichloro-7-methylthiazolo[5,4- d]pyrimidine. Sequential treatment of the amino derivatives with hydrazine hydrate and triethyl orthoesters gave thiazolo[5,4- d][1,2,4]triazolo[4,3- a]pyrimidines as derivatives of a novel heterocyclic system.
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Affiliation(s)
- Hassanali Moradi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, PO Box 91775-1436, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, PO Box 91775-1436, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, PO Box 91775-1436, Iran
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