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Luo M, Li L, Chen S, Yan Q, Lv J, Zeng J, Wang H, Gu S, Chen F. Synthesis of 2,4-Disubstituted Oxazoles and Thiazoles via Brønsted Acid-Catalyzed Cyclization of α-diazoketones with Amides. J Org Chem 2024; 89:5038-5048. [PMID: 38517950 DOI: 10.1021/acs.joc.4c00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
A novel method is described for the synthesis of 2,4-disubstituted oxazole and thiazole derivates via the coupling of α-diazoketones with (thio)amides or thioureas using trifluoromethanesulfonic acid (TfOH) as a catalyst. This protocol is characterized by mild reaction conditions, metal-free, and simplicity and also features good functional group tolerance, good to excellent yields, and a broad substrate scope with more than 40 examples. Experimental studies suggest a mechanism involving 2-oxo-2-phenylethyl trifluoromethanesulfonate as the key intermediate.
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Affiliation(s)
- Mengxiang Luo
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Lewan Li
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shixin Chen
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Qiongjiao Yan
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jian Lv
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jie Zeng
- School of Chemical Engineering & Pharmacy and Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
| | - Haifeng Wang
- School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Wuhan 430205, China
| | - Shuangxi Gu
- School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
| | - Fener Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, Shanghai 200433, China
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Patel M, Bambharoliya T, Shah D, Patel K, Patel M, Shah U, Patel S, Mahavar A, Patel A. Emerging green synthetic routes for thiazole and its derivatives: Current perspectives. Arch Pharm (Weinheim) 2024; 357:e2300420. [PMID: 38013395 DOI: 10.1002/ardp.202300420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023]
Abstract
This review article provides an overview of the green synthesis of thiazole derivatives, emphasizing sustainable and environmentally friendly methodologies. Thiazole derivatives possess significant value and find diverse applications across various fields. However, conventional synthesis methods often involve hazardous reagents and generate substantial waste, posing environmental concerns. The green synthesis of thiazole derivatives employs renewable starting materials, nontoxic catalysts, and mild reaction conditions to minimize environmental impact. Innovative techniques such as microwave irradiation, ultrasound synthesis, green solvents, a green catalyst-based approach, and mechanochemistry-mediated synthesis are employed, offering advantages in terms of scalability, cost-effectiveness, and purification simplicity. The resulting thiazole derivatives exhibit comparable or enhanced biological activities, showcasing the feasibility and practicality of green synthesis in drug discovery. This review paper underscores the importance of sustainable approaches in functional molecular synthesis and encourages further research in this domain.
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Affiliation(s)
- Maitri Patel
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Tushar Bambharoliya
- Department of Fiber and Polymer Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Drashti Shah
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Krina Patel
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Mehul Patel
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Umang Shah
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Swayamprakash Patel
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Anjali Mahavar
- Faculty of Computer Application, Chandaben Mohanbhai Patel Institute of Computer Application, Charotar University of Science and Technology, Anand, Gujarat, India
| | - Ashish Patel
- Faculty of Pharmacy, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand, Gujarat, India
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Jadhao NL, Musale HB, Gajbhiye JM, Humne VT. Copper-mediated [3 + 2] oxidative cyclization of oxime acetate and its utility in the formal synthesis of fentiazac. Org Biomol Chem 2024; 22:521-528. [PMID: 38087933 DOI: 10.1039/d3ob01882b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
A new protocol for the direct synthesis of 2-aminothiazole has been developed from oxime acetate and readily available sodium thiocyanate using a copper catalyst. The present transformation has good functional group tolerance. Various thiazoles were smoothly synthesized in good to excellent yields. The applicability of the present method has been extended to the formal synthesis of the non-steroidal and anti-inflammatory drug, fentiazac via the Sandmeyer reaction and Suzuki coupling.
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Affiliation(s)
- Nitin L Jadhao
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Harish B Musale
- Department of Chemistry, Shri R. R. Lahoti Science College, Morshi, 444905, India.
| | - Jayant M Gajbhiye
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vivek T Humne
- Department of Chemistry, Shri R. R. Lahoti Science College, Morshi, 444905, India.
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Huang C, Zhong Y, Zeng R, Wang J, Fang Q, Xiao S, Zhang J, Wang Z, Chen S, Peng D. Synthesis, Antioxidant, and Antifungal Activities of β-Ionone Thiazolylhydrazone Derivatives and Their Application in Anti-Browning of Freshly Cut Potato. Molecules 2023; 28:6713. [PMID: 37764489 PMCID: PMC10537339 DOI: 10.3390/molecules28186713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
In order to develop a new type of antioxidants with high efficiency, a series of β-ionone thiazolylhydrazone derivatives were designed and synthesized from β-ionone, and their structures were characterized by 1H-NMR, 13C-NMR, FT-IR, and HR-MS. The antioxidant test in vitro indicated that most of the target compounds had high biological activity. Among them, compound 1k exhibited very strong DPPH (1,1-diphenyl-2-picrylhydrazyl radical)-scavenging activity with a half-maximal effective concentration (IC50) of 86.525 μM. Furthermore, in the ABTS (2,2-azinobis (3-ethylbenzothiazoline-6-sulfonate) diammonium salt)-scavenging experiment, compound 1m exhibited excellent activity with an IC50 of 65.408 μM. Their biological activities were significantly better than those of the positive control Trolox. These two compounds, which have good free-radical-scavenging activity in vitro, were used as representative compounds in the anti-browning experiment of fresh-cut potatoes. The results showed that 1k and 1m had the same anti-browning ability as kojic acid, and they were effective browning inhibitors. In addition, it is well known that microbial infection is one of the reasons for food oxidation. Therefore, we investigated the antifungal activity of 25 target compounds against eight plant fungi at a concentration of 125 mg/L. The results indicated that these compounds all have some antifungal activity and may become new potential fungicides. Notably, compound 1u showed the best inhibitory effect against Poria vaporaria, with an inhibition rate as high as 77.71%; it is expected to become the dominant structure for the development of new antifungal agents.
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Affiliation(s)
- Cong Huang
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Yuan Zhong
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Rong Zeng
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Jie Wang
- College of Chemistry and Materials, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qingwen Fang
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Shuzhen Xiao
- College of Chemistry and Materials, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ji Zhang
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Zongde Wang
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
- College of Chemistry and Materials, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China
| | - Shangxing Chen
- College of Forestry, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China; (C.H.)
| | - Dayong Peng
- College of Chemistry and Materials, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Jiangxi Agricultural University, Nanchang 330045, China
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Facile one-pot three-component strategy for the synthesis of 2-amino-4-arylthiazoles via elemental sulfur source. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sadgar AL, Deore TS, Hase DV, Jayaram RV. Graphene Oxide Pickering Emulsion – A Novel Reaction Medium for the Synthesis of 2‐Aminothiazole. ChemistrySelect 2021. [DOI: 10.1002/slct.202102808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Amid L. Sadgar
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Tushar S. Deore
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Dattatraya V. Hase
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Radha V. Jayaram
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
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Chen Y, Lv S, Lai R, Xu Y, Huang X, Li J, Lv G, Wu Y. Synthesis of 2-aminothiazoles via rhodium-catalyzed carbenoid insertion/annulation of sulfoxonium ylides with thioureas. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Vanga SKR, Bollikolla HB, Peruri VVS. Catalyst‐free facile and efficient one‐pot synthesis of densely functionalized pyrroles and α‐amino ketones. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4227] [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]
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Alenzi RA, El Guesmi N, Shaaban MR, Asghar BH, Farghaly TA. Assessing the nucleophilic character of 2-amino-4-arylthiazoles through coupling with 4,6-dinitrobenzofuroxan: Experimental and theoretical approaches based on structure-reactivity relationships. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kardooni R, Kiasat AR. Polyethylene Glycol as a Green and Biocompatible Reaction Media for the Catalyst Free Synthesis of Organic Compounds. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200605161840] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Replacing harmful organic solvents that caused environmental pollution with an alternative medium for the development of ideal synthetic strategies is one of the primary focal points of green chemistry. Utilizing polyethylene glycol (PEG) as a nonvolatile solvent and promotor for the evaluation of safe processes has made a considerable contribution to the reduction of pollution problems. The current review summarizes the recent well-known catalyst-free organic reaction performed in polyethylene glycol as a green and biocompatible reaction medium.
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Affiliation(s)
- Rezvan Kardooni
- Chemistry Department, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Ali Reza Kiasat
- Chemistry Department, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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12
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Firoj Basha S, Prasad TN, Gudise VB, Kumar VS, Mulakayala N, Anwar S. An efficient, multicomponent, green protocol to access 4, 7-dihydrotetrazolo [1, 5-a] pyrimidines and 5,6,7,9-tetrahydrotetrazolo[5,1-b]quinazolin-8(4H)-ones using PEG-400 under microwave irradiation. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1659973] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shaik Firoj Basha
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
| | - Tangella Nagendra Prasad
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
| | - Veera Babu Gudise
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
| | - Vadiga Shanthi Kumar
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
| | - Naveen Mulakayala
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
| | - Shaik Anwar
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research – VFSTR (Deemed to be University), Guntur, India
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Rajeshirke M, Shah D, Sekar N. Nonlinear Optical Chromophores with Aggregation Induced Emission Enhancement Based on 2-N,N-Dibutylamino-4-Phenyl Thiazole with FMR Characteristics. J Fluoresc 2018; 29:61-73. [DOI: 10.1007/s10895-018-2311-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/14/2018] [Indexed: 01/20/2023]
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