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Moosavi-Zare AR, Najafi R. Multicomponent synthesis of pyrimido[4,5-b] quinolines over a carbocationic catalytic system. Sci Rep 2023; 13:16501. [PMID: 37779154 PMCID: PMC10543543 DOI: 10.1038/s41598-023-43793-5] [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: 03/12/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023] Open
Abstract
Trityl chloride (TrCl) was efficiently used as a neutral catalyst for the multicomponent cyclization reaction of an aldehyde with dimedone and 6-amino-1,3-dimethyluracil for the preparation of pyrimido[4,5-b] quinolines in chloroform under reflux condition.
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Affiliation(s)
| | - Raha Najafi
- Department of Chemical Engineering, Hamedan University of Technology, Hamedan, 65155, Iran
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2
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Ionic Liquid Modified SPION@Chitosan as a Novel and Reusable Superparamagnetic Catalyst for Green One-Pot Synthesis of Pyrido[2,3-d]pyrimidine-dione Derivatives in Water. Catalysts 2023. [DOI: 10.3390/catal13020290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
In this paper, the chitosan-functionalized ionic liquid is modified with superparamagnetic iron oxide nanoparticles to form a novel and reusable catalyst (SPION@CS-IL), which was carried out using an ultrasonic promoted approach. Transmission electron microscopy (TEM), vibrating-sample magnetometer (VSM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), and thermogravimetric analysis (TGA) are some of the techniques that are used to fully characterize SPION@CS-IL. The created nanoparticles were discovered to be a reusable heterogeneous superparamagnetic catalyst for the environmentally friendly one-pot synthesis of pyrido[2,3-d]pyrimidine derivatives using a simple three-component reaction approach involving thiobarbituric acid, 4-hydroxy coumarin, and various aromatic aldehydes. The method is studied by performing the reaction under ultrasonic irradiation, while the approach is a “green” method, it uses water as the solvent. The isolated yields of the synthesized products are very advantageous. The catalyst has outstanding reusability and is easily removed from the products via filtration (5 runs). Short reaction times, low catalyst loadings, the nanocatalyst’s capacity to be recycled five times, and the absence of harmful chemical reagents are all significant benefits of this environmentally benign process.
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3
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Parmar M, Vala RM, Patel HM. Importance of Hybrid Catalysts toward the Synthesis of 5 H-Pyrano[2,3- d]pyrimidine-2-ones/2,4-diones (Thiones). ACS OMEGA 2023; 8:1759-1816. [PMID: 36687108 PMCID: PMC9850783 DOI: 10.1021/acsomega.2c05349] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The pyranopyrimidine core is a key precursor for medicinal and pharmaceutical industries due to its broader synthetic applications as well as its bioavailability. Among its four possible isomers, we found that 5H-pyrano[2,3-d]pyrimidine scaffolds have a wide range of applicability, and in recent years, they have been intensively investigated, but the development of the main core is found to be more challenging due to its structural existence. In this review article, we cover all of the synthetic pathways that are employed for the development of substituted 4-aryl-octahydropyrano/hexahydrofuro[2,3-d]pyrimidin-2-one (thiones) and 5-aryl-substituted pyrano[2,3-d]pyrimidindione (2-thiones) derivatives through a one-pot multicomponent reaction using diversified hybrid catalysts such as organocatalysts, metal catalysts, ionic liquid catalysts, nanocatalysts, green solvents, catalyst-/solvent-free conditions, and miscellaneous catalysts as well as the mechanism and recyclability of the catalysts. This review mainly focuses on the application of hybrid catalysts (from 1992 to 2022) for the synthesis of 5H-pyrano[2,3-d]pyrimidine scaffolds. This review will definitely attract the world's leading researchers to utilize broader catalytic applications for the development of lead molecules.
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4
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Esmaili S, Moosavi-Zare AR, Khazaei A, Najafi Z. Synthesis of Novel Pyrimido[4,5- b] Quinolines Containing Benzyloxy and 1,2,3-Triazole Moieties by DABCO as a Basic Catalyst. ACS OMEGA 2022; 7:45314-45324. [PMID: 36530277 PMCID: PMC9753531 DOI: 10.1021/acsomega.2c05896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
DABCO was used as a basic and inexpensive catalyst for the synthesis of some new benzyloxy pyrimido[4,5-b]quinoline derivatives and 1,2,3- triazole-fused pyrimido[4,5-b]quinolines by the one-pot multi-component reaction of various benzyloxy benzaldehydes or benzylic -1,2,3-triazol-4-yl-methoxy benzaldehydes with dimedone and 6-amino-1,3-dimethyluracil at 90 °C under the solvent-free condition.
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Affiliation(s)
- Soheila Esmaili
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
| | | | - Ardeshir Khazaei
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
| | - Zahra Najafi
- Department
of Medicinal Chemistry, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan 6517838678, Iran
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5
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Esmaili S, Khazaei A, Moosavi-Zare AR. Multi-Component Synthesis of Pyrido[2,3- d]Pyrimidines Catalyzed by Nano Magnetite Schiff Base Complex. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2123539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Soheila Esmaili
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Ardeshir Khazaei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
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6
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Saei Dehkordi SS, Albadi J, Jafari AA, Samimi HA. Boric Acid/Pentaerythritol as a Green and Reusable Catalytic System for the Synthesis of Mono- and Bis-Pyrano[2,3-d]Pyrimidinone Derivatives in Water. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2118330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Jalal Albadi
- Department of Chemistry, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Abbas Ali Jafari
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
| | - Heshmat Allah Samimi
- Department of Chemistry, Faculty of Science, Shahrekord University, Shahrekord, Iran
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7
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Introduction of a tropine-based dication ionic liquid catalyst for the synthesis of polyhydroquinoline and 1,8-dioxodecahydroacridine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04816-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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8
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N-propargylation reaction of substituted 4H-pyrano[2,3-d]pyrimidine derivatives under conventional, ultrasound- and microwave-assisted conditions. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02213-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Dastmard S, Mamaghani M, Farahnak L, Rassa M. Facile Synthesis of Polyfunctional Indole-Pyrido[2,3- d]Pyrimidine Hybrids Using Nickel-Incorporated Fluorapatite Encapsulated Iron Oxide Nanocatalyst and Study of Their Antibacterial Activities. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1804413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sahar Dastmard
- Department of Chemistry, University of Guilan, Rasht, Iran
| | | | - Lahya Farahnak
- Department of Chemistry, University of Guilan, Rasht, Iran
| | - Mehdi Rassa
- Department of Biology, University of Guilan, Rasht, Iran
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10
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Dhameliya TM, Nagar PR, Bhakhar KA, Jivani HR, Shah BJ, Patel KM, Patel VS, Soni AH, Joshi LP, Gajjar ND. Recent advancements in applications of ionic liquids in synthetic construction of heterocyclic scaffolds: A spotlight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Esmaili S, Moosavi-Zare AR, Khazaei A. Nano-[Fe3O4@SiO2/N-propyl-1-(thiophen-2-yl)ethanimine][ZnCl2] as a nano magnetite Schiff base complex and heterogeneous catalyst for the synthesis of pyrimido[4,5-b]quinolones. RSC Adv 2022; 12:5386-5394. [PMID: 35425540 PMCID: PMC8981359 DOI: 10.1039/d2ra00213b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/04/2022] [Indexed: 01/07/2023] Open
Abstract
Nano-[Fe3O4@SiO2/N-propyl-1-(thiophen-2-yl)ethanimine][ZnCl2] as a nano magnetite Schiff base complex was designed and fully characterized by various analyses such as Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential thermal gravimetric analysis (DTA), vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), and transmission electron micrographs (TEM). The presented nano magnetite Schiff base complex was used as a heterogeneous catalyst for the synthesis of pyrimido[4,5-b]quinolones by the reaction of aryl aldehyde, dimedone and 6-amino-1,3-dimethyluracil in EtOH : H2O (7 : 3) as a solvent at 60 °C. Nano-[Fe3O4@SiO2/N-propyl-1-(thiophen-2-yl)ethanimine][ZnCl2] as a nano magnetite Schiff base complex was designed and successfully tested for the synthesis of pyrimido[4,5-b]quinolones.![]()
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Affiliation(s)
- Soheila Esmaili
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran
| | | | - Ardeshir Khazaei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran
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12
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Son Hai D, Thi Thu Ha N, Tien Tung D, Thi Kim Giang N, Thi Thu Huong N, Huu Anh H, Thi Kim Van H, Ngoc Toan V, Toan DN, Thanh ND. Synthesis, biological evaluation and induced fit docking simulation study of d-glucose-conjugated 1 H-1,2,3-triazoles having 4 H-pyrano[2,3- d]pyrimidine ring as potential agents against bacteria and fungi. NEW J CHEM 2022. [DOI: 10.1039/d1nj05330b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gluco-conjugated 1H-1,2,3-triazoles having 4H-pyrano[2,3-d]pyrimidines are synthesized via click chemistry of N-propargyl-4H-pyrano[2,3-d]pyrimidines and glucopyaranosyl azide using CuI@Montmorillonite. Their antibacterial, anti-MRSA, and antifungal activity is probed.
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Affiliation(s)
- Do Son Hai
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
- Institute of Science and Technology, Ministry of Public Security of Vietnam, 47 Pham Van Dong, Cau Giay, Ha Noi, Vietnam
| | - Nguyen Thi Thu Ha
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
| | - Do Tien Tung
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
| | - Nguyen Thi Kim Giang
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
- Institute of Science and Technology, Ministry of Public Security of Vietnam, 47 Pham Van Dong, Cau Giay, Ha Noi, Vietnam
| | - Nguyen Thi Thu Huong
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
| | - Hoang Huu Anh
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
| | - Hoang Thi Kim Van
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
- Faculty of Chemical Technology, Viet Tri University of Industry, Tien Kien, Lam Thao, Phu Tho, Vietnam
| | - Vu Ngoc Toan
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
- Institute for Chemistry and Materials, Military Institute of Science and Technology (Ministry of Military), Cau Giay, Ha Noi, Vietnam
| | - Duong Ngoc Toan
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
- Faculty of Chemistry, Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Vietnam
| | - Nguyen Dinh Thanh
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), 19 Le Thanh Tong, Hoan Kiem, Ha Noi, Vietnam
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13
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Yarinia R, Shirini F, Langarudi MSN, Seyyedi N. Introduction of a New Nano Sized Ni-Based Salt for the Acceleration of the Synthesis of Pyrano[2,3- d]pyrimidinone and 1,4-Dihydropyridine Derivatives. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1991393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ramtin Yarinia
- Department of Chemistry, College of Science, University of Guilan, Rasht, Iran
| | - Farhad Shirini
- Department of Chemistry, College of Science, University of Guilan, Rasht, Iran
| | | | - Narges Seyyedi
- Department of Chemistry, College of Science, University of Guilan, Rasht, Iran
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14
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Agar-entrapped sulfonated DABCO: Agelly acidic catalyst for the acceleration of one-pot synthesis of 1,2,4-triazoloquinazolinone and some pyrimidine derivatives. J Mol Struct 2021; 1226:129336. [PMID: 33012844 PMCID: PMC7518970 DOI: 10.1016/j.molstruc.2020.129336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/15/2020] [Accepted: 09/24/2020] [Indexed: 11/26/2022]
Abstract
In this project, a recently synthesized DABCO-based catalyst is entrapped in agar to reduce its moisture sensitivity leading to enhancement of its stability and catalytic activity. After preparation and identification this new reagent is used as an efficient and environmentally safe catalyst for the preparation of 1, 2, 4-triazoloquinazolinone and some pyrimidine derivatives. This method is accompanied with some superiorities such as, simple operation, mild and green conditions, use of low cost and non-hazardous natural material, short reaction times, easy preparation methods and simple work-up procedures. The prepared catalyst can be re-used for several times in all of the studied reactions without any appreciable loss in its activity.
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15
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Alipour Khoshdel M, Shirini F, Nikoo Langarudi MS, Zabihzadeh M, Biglari M. Three-component synthesis of 4 H-pyran scaffolds accelerated by a gabapentin-based natural deep eutectic solvent. NEW J CHEM 2021. [DOI: 10.1039/d0nj05342b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A new natural deep eutectic solvent was prepared from gabapentin and choline chloride and its catalytic activity was investigated.
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Affiliation(s)
| | - Farhad Shirini
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
| | | | - Mehdi Zabihzadeh
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
| | - Mohammad Biglari
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
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16
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Bhuyan AJ, Bhuyan P, Boruah B, Saikia L. Magnetically recoverable copper ferrite catalyzed cascade synthesis of 1,3‐dimethyl‐6‐nitro‐5‐arylpyrido[2,3‐
d
]pyrimidine‐2,4(1
H
,3
H
)‐diones under microwave irradiation and solvent‐less condition. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amar Jyoti Bhuyan
- Department of Chemistry Rajiv Gandhi University (A Central University) Doimukh India
| | - Pubanita Bhuyan
- Department of Chemistry Rajiv Gandhi University (A Central University) Doimukh India
| | - Bornali Boruah
- Department of Chemistry Assam Down Town University Guwahati India
| | - Lakhinath Saikia
- Department of Chemistry Rajiv Gandhi University (A Central University) Doimukh India
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17
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An efficient one-pot three-component synthesis of 7-amino-2, 4-dioxo-5-aryl-1,3,4,5-tetrahydro-2 H-pyrano[2,3-d]pyrimidine-6-carbonitriles catalyzed by SnO2/SiO2 nanocomposite. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04273-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Farahmand T, Hashemian S, Sheibani A. Efficient one-pot synthesis of pyrano[2,3-d]pyrimidinone and pyrido [2,3-d] pyrimidine derivatives by using of Mn-ZIF-8@ZnTiO3 nanocatalyst. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127667] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Iravani N, Keshavarz M, Parhami A. Novel SO3H-functionalized phenanthrolinum-phosphotungstate ionic liquid for highly promoted three-component synthesis of 2H-indazolo[2,1-b]phthalazine-triones. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03875-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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20
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Karami S, Momeni AR, Albadi J. Preparation and application of triphenyl(propyl-3-hydrogen sulfate)phosphonium bromide as new efficient ionic liquid catalyst for synthesis of 5-arylidene barbituric acids and pyrano[2,3-d]pyrimidine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03798-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Aqueous hydrotropic solution: green reaction medium for synthesis of pyridopyrimidine carbonitrile and spiro-oxindole dihydroquinazolinone derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03801-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Nazemi Nasirmahale L, Shirini F, Goli-Jolodar O, Tajik H. Introduction of Poly(4-Vinylpyridine) as an Efficient Promotor for the Synthesis of Pyrano[2,3-d]Pyrimidinones and Pyrido[2,3-d]Pyrimidines. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1524389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Farhad Shirini
- Department of Chemistry, College of Sciences, University of Guilan, Rasht, Iran
| | - Omid Goli-Jolodar
- Department of Chemistry, College of Sciences, University of Guilan, Rasht, Iran
| | - Hassan Tajik
- Department of Chemistry, College of Sciences, University of Guilan, Rasht, Iran
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23
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4-(4-Propylpiperazine-1-yl)butane-1-sulfonic acid-modified silica-coated magnetic nanoparticles: A novel and recyclable catalyst for the synthesis of 5-arylidinebarbituric acids and pyrano[2,3-d]pyrimidinedione derivatives in aqueous media. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Selective oxidation of sulfides to sulfoxides using novel nano Brönsted dicationic ionic liquid as effective reagent under grinding conditions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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An affordable DABCO-based ionic liquid efficiency in the synthesis of 3-amino-1-aryl-1H-benzo[f] chromene-2-carbonitrile, 1-(benzothiazolylamino)phenylmethyl-2-naphthol, and 1-(benzoimidazolylamino)phenylmethyl-2-naphthol derivatives. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1408-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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26
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Jamasbi N, Irankhah-Khanghah M, Shirini F, Tajik H, Langarudi MSN. DABCO-based ionic liquids: introduction of two metal-free catalysts for one-pot synthesis of 1,2,4-triazolo[4,3-a]pyrimidines and pyrido[2,3-d]pyrimidines. NEW J CHEM 2018. [DOI: 10.1039/c8nj01455h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, structurally functionalized 1,2,4-triazolo[4,3-a]pyrimidines and pyrido[2,3-d]pyrimidines were synthesized by two non-metal DABCO-based ionic liquids which were compared in catalytic activity in both reactions.
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Affiliation(s)
- N. Jamasbi
- Department of Chemistry
- College of Science
- University of Guilan
- Rasht
- Iran
| | | | - F. Shirini
- Department of Chemistry
- College of Science
- University of Guilan
- Rasht
- Iran
| | - H. Tajik
- Department of Chemistry
- College of Science
- University of Guilan
- Rasht
- Iran
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