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Li Q, Yuan D, Liu C, Herington F, Yang K, Ge H. Selective Oxidation of Benzo[ d]isothiazol-3(2 H)-Ones Enabled by Selectfluor. Molecules 2024; 29:3899. [PMID: 39202979 PMCID: PMC11357611 DOI: 10.3390/molecules29163899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/10/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024] Open
Abstract
A metal-free and Selectfluor-mediated selective oxidation reaction of benzo[d]isothiazol-3(2H)-ones in aqueous media is presented. This novel strategy provides a facile, green, and efficient approach to access important benzo[d]isothiazol-3(2H)-one-1-oxides with excellent yields and high tolerance to various functional groups. Furthermore, the purification of benzoisothiazol-3-one-1-oxides does not rely on column chromatography. Moreover, the preparation of saccharine derivatives has been achieved through sequential, double oxidation reactions in a one-pot aqueous media.
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Affiliation(s)
- Qin Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (Q.L.); (D.Y.)
| | - Dan Yuan
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (Q.L.); (D.Y.)
| | - Chong Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA; (C.L.); (F.H.)
| | - Faith Herington
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA; (C.L.); (F.H.)
| | - Ke Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (Q.L.); (D.Y.)
| | - Haibo Ge
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA; (C.L.); (F.H.)
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Chen Y. Advances in the Synthesis of Methylated Products through Indirect Approaches. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Research and Early DevelopmentCardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca 43183 Gothenburg Sweden
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Figueroa FN, Heredia AA, Peñéñory AB, Sampedro D, Argüello JE, Oksdath-Mansilla G. Regioselective Photocycloaddition of Saccharin Anion to π-Systems: Continuous-Flow Synthesis of Benzosultams. J Org Chem 2019; 84:3871-3880. [DOI: 10.1021/acs.joc.8b02984] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | | | - Diego Sampedro
- Departamento de Química Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios, 53, Logroño 26006, Spain
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Kobayashi K, Fujiwara D. Synthesis of (E)-N-Substituted 1,2-Benzothiazol-3(2H)-imine 1,1-Dioxide Derivatives from Secondary Benzenesulfonamides and Isothiocyanates. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Castro-Godoy WD, Oksdath-Mansilla G, Argüello JE, Peñéñory AB. Exploring the Photophysical and Photochemical Properties of N-(Thioalkyl)-saccharins as an Alternative Route to the Synthesis of Tricyclic Sultams. J Org Chem 2017; 82:101-108. [PMID: 27966358 DOI: 10.1021/acs.joc.6b02171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photocyclization of N-(thioalkyl)-saccharin was carried out to obtain different polycyclic sultams in good yields. These photoreactions were efficient under inert atmosphere and acetone triplet-sensitized conditions indicating that the triplet excited state is directly involved in the formation of annulated products. The presence of molecular oxygen changes product distribution, and only photo-oxygenation products (sulfoxides and sulfones) were found. This result is especially valuable since, by simple changing from nitrogen- to oxygen-saturated solvent conditions, the reaction outcome can be tuned from cyclized to sulfur oxidation products. Additionally, steady-state photolysis, electrochemistry, and laser time-resolved spectroscopic studies confirmed that these reactions mainly proceeded by intramolecular electron transfer (ET) between the triplet excited saccharin moiety and sulfur atom.
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Affiliation(s)
- Willber D Castro-Godoy
- INFIQC-CONICET-UNC, Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria , X5000HUA Córdoba, Argentina
| | - Gabriela Oksdath-Mansilla
- INFIQC-CONICET-UNC, Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria , X5000HUA Córdoba, Argentina
| | - Juan E Argüello
- INFIQC-CONICET-UNC, Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria , X5000HUA Córdoba, Argentina
| | - Alicia B Peñéñory
- INFIQC-CONICET-UNC, Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria , X5000HUA Córdoba, Argentina
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Fawad Zahoor A, Akhtar R, Ahmad S, Ali Raza Naqvi S, Gul Khan S, Suleman M. Update on the Reactivity of Saccharin: An Excellent Precursor for the Synthesis of Biologically Important Molecules. HETEROCYCLES 2017. [DOI: 10.3987/rev-17-862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Ismael A, Borba A, Henriques MSC, Paixão JA, Fausto R, Cristiano MLS. Structure and photochemistry of a saccharyl thiotetrazole. J Org Chem 2014; 80:392-400. [PMID: 25438067 DOI: 10.1021/jo502419u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The molecular structure and photochemistry of 5-thiosaccharyl-1-methyltetrazole (TSMT) were studied by means of matrix-isolation FTIR spectroscopy, X-ray crystallography, and theoretical calculations. The calculations predicted two conformers of TSMT that differ in energy by more than 15 kJ mol(-1). The infrared spectrum of TSMT isolated in solid argon was fully assigned on the basis of the spectrum calculated (O3LYP/6-311++G(3df,3pd)) for the most stable conformer. In the crystal, TSMT molecules were found to assume the same conformation as for the isolated molecule, with each molecule forming four hydrogen bonds with three neighboring molecules, leading to a network of TSMT oligomers. Upon UV (λ = 265 nm) irradiation of the matrix-isolated TSMT, two photodegradation pathways were observed, both arising from cleavage of the tetrazolyl ring. Pathway a involves cleavage of the N1-N2 and N3-N4 bonds with extrusion of N2, leading to photostable diazirine and thiocarbodiimide derivatives. The photostability of the photoproduced diazirine under the conditions used precluded its rearrangement to the nitrile imine, as reported for 5-phenyltetrazole by Bégué et al. ( J. Am. Chem. Soc. 2012 , 134 , 5339 ). Pathway b involves cleavage of the C5-N1 and N4-N3 bonds, leading to a thiocyanate and methyl azide, the latter undergoing subsequent fragmentation to give CNH.
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Affiliation(s)
- A Ismael
- †CCMAR and Department of Chemistry and Pharmacy, F.C.T., University of Algarve, P-8005-039 Faro, Portugal.,‡Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - A Borba
- ‡Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - M S C Henriques
- §CEMDRX, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - J A Paixão
- §CEMDRX, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - R Fausto
- ‡Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - M L S Cristiano
- †CCMAR and Department of Chemistry and Pharmacy, F.C.T., University of Algarve, P-8005-039 Faro, Portugal
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Genesis of rare molecules using light-induced reactions of matrix-isolated tetrazoles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2013.09.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Affiliation(s)
- L. Duarte
- Department
of Chemistry, University of Coimbra, P-3004-535
Coimbra, Portugal
| | - I. Reva
- Department
of Chemistry, University of Coimbra, P-3004-535
Coimbra, Portugal
| | - M. L. S. Cristiano
- CCMAR
and Department of Chemistry
and Pharmacy, University of Algarve, P-8005-139
Faro, Portugal
| | - R. Fausto
- Department
of Chemistry, University of Coimbra, P-3004-535
Coimbra, Portugal
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Ismael A, Borba A, Duarte L, Giuliano B, Gómez-Zavaglia A, Cristiano M. Structure and photochemistry of a novel tetrazole-saccharyl conjugate isolated in solid argon. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.04.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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