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Viglianisi C, Vasa K, Tanini D, Capperucci A, Amorati R, Valgimigli L, Baschieri A, Menichetti S. Ditocopheryl Sulfides and Disulfides: Synthesis and Antioxidant Profile. Chemistry 2019; 25:9108-9116. [PMID: 31017702 DOI: 10.1002/chem.201901537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Indexed: 12/14/2022]
Abstract
Symmetrical ditocopheryl disulfides (Toc)2 S2 and symmetrical and unsymmetrical ditocopheryl sulfides (Toc)2 S were simply prepared under remarkably mild conditions with complete control of the regiochemistry by using δ-, γ-, and β-tocopheryl-N-thiophthalimides (Toc-NSPht) as common starting materials. The roles of sulfur atom(s), H-bond and aryl ring substitution pattern on the antioxidant profile of these new compounds, which were assembled by linking together two tocopheryl units, are also discussed.
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Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Kristian Vasa
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Damiano Tanini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Antonella Capperucci
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Andrea Baschieri
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Stefano Menichetti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
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Viglianisi C, Menichetti S, Piantini S, Tofani L. Helical-Shaped Bis-1,4-benzoxathiines through an Inverse-Electron-Demand Hetero-Diels-Alder Reaction ofortho-Thioquinones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600850] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Stefano Menichetti
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Sara Piantini
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Lorenzo Tofani
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
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Viglianisi C, Marcantoni E, Carapacchi V, Menichetti S, Marsili L. A Base-Mediated Mild Sulfenylation of Indoles and Pyrrole with α-Acylthiones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402894] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Viglianisi C, Sinni A, Menichetti S. Copper-Mediated One-Pot Access to 2,3-Dihydrobenzo[b][1,4]oxathiines fromo,o′-Dihydroxydisulfides. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
| | - Aidona Sinni
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
| | - Stefano Menichetti
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
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Tian H, Zhu C, Yang H, Fu H. Iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature. Chem Commun (Camb) 2014; 50:8875-7. [DOI: 10.1039/c4cc03600j] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, efficient and environmentally friendly method for iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature has been developed, and the corresponding diaryl sulfides were prepared in good to excellent yields.
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Affiliation(s)
- Hua Tian
- Department of Applied Chemistry
- Beijing Institute of Technology
- Beijing 100081, P. R. China
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
| | - Changjin Zhu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084, P. R. China
| | - Haijun Yang
- Department of Applied Chemistry
- Beijing Institute of Technology
- Beijing 100081, P. R. China
| | - Hua Fu
- Department of Applied Chemistry
- Beijing Institute of Technology
- Beijing 100081, P. R. China
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
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