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Rajput K, Singh V, Singh S, Srivastava V. A chromatography-free one-pot, two-step synthesis of 1,2,4-thiadiazoles from primary amides via thiolation and oxidative dimerization under solvent-free conditions: a greener approach. RSC Adv 2024; 14:22480-22485. [PMID: 39015666 PMCID: PMC11250125 DOI: 10.1039/d4ra03993a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024] Open
Abstract
An efficient and practical one-pot, two-step synthesis of 1,2,4-thiadiazoles from primary amides with Lawesson reagent (LR) and tert-butyl hydrogen peroxide (TBHP) without solvent is demonstrated for the first time. This groundbreaking and environmentally friendly approach utilises readily available starting materials and eliminates the use of traditional solvents in the reaction process. The broad substrate scope, excellent functional group tolerance in mild and metal-free conditions, quick conversion, and excellent yields are essential features of this methodology. All the compounds were purified without column chromatography.
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Affiliation(s)
- Khushbu Rajput
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Vishal Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
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Osminin VI, Mironenko AA, Dahno PG, Nazarenko MA, Oflidi AI, Dotsenko VV, Strelkov VD, Aksenov NA, Aksenova IV. Electrochemical Oxidation of 3-Aryl-2-cyanothioacrylamides. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222110068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Pop A, Silvestru C, Silvestru A. Organoselenium and organotellurium compounds containing chalcogen-oxygen bonds in organic synthesis or related processes. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Abstract
This chapter emphasizes aspects related to the role of organochalcogen (Se, Te) compounds with single E‒O and/or double E=O (E=Se, Te) bonds in organic synthesis, as reagents, intermediates, or catalysts, and it gives a larger extent mainly to data reported in the field during the last ten years. For each of these two heavier chalcogens the material is structured according to the oxidation state of the chalcogen and, for the same oxidation state, in sections dedicated to a particular type of compounds. Functionalization or cyclization reactions in which the organochalcogen compounds take part as nucleophiles, electrophiles or radicals, employed in various synthetic transformations, are discussed and, where available, the mechanistic aspects are outlined. New chiral species and new strategies were developed during last years in order to increase the yield, the reaction rate and the stereoselectivity in specific organic transformations, i.e. addition, oxidation, elimination, cyclization or rearrangement reactions. A notably attention was devoted to easily accessible and environmental friendly catalysts, re-usable and “green” solvents, as well as waste-free procedures.
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Subhas Bose D, Raghavender Reddy K. A Simple and Convenient Method for the Synthesis of 3,5-disubstituted 1,2,4-thiadiazoles via Oxidative Dimerization of Primary Thioamides. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- D. Subhas Bose
- Organic and Biomolecular Chemistry Division, Fine Chemicals Laboratory; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500 007 T. S., India
| | - K. Raghavender Reddy
- Organic and Biomolecular Chemistry Division, Fine Chemicals Laboratory; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500 007 T. S., India
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Zali-Boeini H, Shokrolahi A, Zali A, Ghani K. Highly efficient synthesis of 3,5-disubstituted 1,2,4-thiadiazoles using pentylpyridinium tribromide as a solvent/reagent ionic liquid. J Sulphur Chem 2012. [DOI: 10.1080/17415993.2011.649757] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Hassan Zali-Boeini
- a Department of Chemistry , University of Isfahan , PO Box 81746-73441, Isfahan , Islamic Republic of Iran
| | - Arash Shokrolahi
- b Department of Chemistry , Malek-Ashtar University of Technology , PO Box 83145-115, Shahin shahr , Islamic Republic of Iran
| | - Abbas Zali
- b Department of Chemistry , Malek-Ashtar University of Technology , PO Box 83145-115, Shahin shahr , Islamic Republic of Iran
| | - Kamal Ghani
- b Department of Chemistry , Malek-Ashtar University of Technology , PO Box 83145-115, Shahin shahr , Islamic Republic of Iran
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Synthesis and in-vitro anticancer activity of 3,5-bis(indolyl)-1,2,4-thiadiazoles. Bioorg Med Chem Lett 2011; 21:5897-900. [PMID: 21873049 DOI: 10.1016/j.bmcl.2011.07.089] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/21/2011] [Accepted: 07/25/2011] [Indexed: 11/20/2022]
Abstract
A series of 3,5-bis(indolyl)-1,2,4-thiadiazoles were synthesized and evaluated for their cytotoxicity against selected human cancer cell lines. The reaction of indole-3-thiocarboxamide 3 with iodobenzene diacetate underwent oxidative dimerization to give 3,5-bis(indolyl)-1,2,4-thiadiazoles 4a-n. Among the synthesized bis(indoly)-1,2,4-thiadiazoles, the compound 4h with 4-chlorobenzyl and methoxy substituents showed the most potent activity.
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Xu Y, Chen J, Gao W, Jin H, Ding J, Wu H. Solvent-Free Synthesis of 3,5-di(Hetero)Aryl-1,2,4-Thiadiazoles by Grinding of Thioamides under Oxidative Conditions. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12677120188989] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient and facile synthesis of 3,5-di(hetero)aryl-1,2,4-thiadiazoles by oxidative dimerisation of thioamides by grinding with NBS under solvent-free conditions at room temperature has been developed. The efficiency of this reaction was demonstrated by the compatibility with trifluoromethyl, methyl, methoxy, chloro, pyridyl and thienyl groups. This method has notable advantages in terms of short reaction times, high yields and is a more practical alternative to the existing methods to access these compounds.
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Affiliation(s)
- Yali Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jiuxi Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Huile Jin
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jinchang Ding
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Wenzhou Vocational and Technical College, Wenzhou, 325035, P. R. China
| | - Huayue Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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Patil PC, Bhalerao DS, Dangate PS, Akamanchi KG. IBX/TEAB-mediated oxidative dimerization of thioamides: synthesis of 3,5-disubstituted 1,2,4-thiadiazoles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.155] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ogibin YN, Elinson MN, Nikishin GI. Mediator oxidation systems in organic electrosynthesis. RUSSIAN CHEMICAL REVIEWS 2009. [DOI: 10.1070/rc2009v078n02abeh003886] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Liu ZD, Chen ZC. Hypervalent iodine in synthesis: 13: Action of phenyliodine(III) dicarboxylates on diaryltellurides: A facile and general method for the preparation of diaryltellurium dicarboxylates. HETEROATOM CHEMISTRY 1992. [DOI: 10.1002/hc.520030518] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fukumoto T, Matsuki T, Hu NX, Aso Y, Otsubo T, Ogura F. Benzenetellurinic Mixed Anhydrides as Mild Oxidizing Agents. CHEM LETT 1990. [DOI: 10.1246/cl.1990.2269] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Matsuki T, Hu NX, Aso Y, Otsubo T, Ogura F. Tellurium-Assisted Cyclopropanation and Alkylidenation of α,β-Unsaturated Carbonyl Compounds with Dibromomalonic Esters. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1989. [DOI: 10.1246/bcsj.62.2105] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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