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Kuczmera TJ, Puylaert P, Nachtsheim BJ. Oxidation of benzylic alcohols to carbonyls using N-heterocyclic stabilized λ 3-iodanes. Beilstein J Org Chem 2024; 20:1677-1683. [PMID: 39076300 PMCID: PMC11285054 DOI: 10.3762/bjoc.20.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/12/2024] [Indexed: 07/31/2024] Open
Abstract
We present N-heterocycle-stabilized iodanes (NHIs) as suitable reagents for the mild oxidation of activated alcohols. Two different protocols, both involving activation by chloride additives, were used to synthesize benzylic ketones and aldehydes without overoxidation in up to 97% yield. Based on MS experiments an activated hydroxy(chloro)iodane is proposed as the reactive intermediate.
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Affiliation(s)
- Thomas J Kuczmera
- Institute for Organic and Analytical Chemistry, University of Bremen, Bremen, Germany
| | - Pim Puylaert
- Institute for Inorganic Chemistry and Crystallography, University of Bremen, Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, Bremen, Germany
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2
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Li G, Smith R, Gembicky M, Rheingold AL, Protasiewicz JD. Sterically crowded 1,4-diiodobenzene as a precursor to difunctional hypervalent iodine compounds. Chem Commun (Camb) 2022; 58:1159-1162. [PMID: 34981095 DOI: 10.1039/d1cc06486j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bulky 1,4-di-iodobenzene having four adjacent para-tBu-C6H4 group (Ar') substituents (1) was used to prepare the di-hypervalent iodine compound 1,4-[I(OAc)2]2-2,3,5,6-Ar'4-C6 (2). Despite the steric encumbrance of the iodine center by the flanking aryl substituents, compound 2 undergoes ready cyclization under mild conditions (excess CF3COOH at 55 °C, 30 min) to afford a dicyclic di-iodonium di-triflate salt 3. The single crystal structures of compounds 2 and 3 were examined and compared to the formerly characterized precursor 1. The para-tert-butyl groups on these compounds also render the compounds more soluble than multifunctional hypervalent iodine (HVI) compounds. HVI compounds having multiple iodine(III) centers are increasingly of interest for applications as recyclable reagents, materials precursors, and as Lewis acids.
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Affiliation(s)
- Guobi Li
- Chemistry Department, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Rhett Smith
- Chemistry Department, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Milan Gembicky
- Chemistry and Biochemistry Department, University of California San Diego, La Jolla, CA, 92093, USA
| | - Arnold L Rheingold
- Chemistry and Biochemistry Department, University of California San Diego, La Jolla, CA, 92093, USA
| | - John D Protasiewicz
- Chemistry Department, Case Western Reserve University, Cleveland, OH, 44106, USA.
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3
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Farshadfar K, Bird MJ, Olivier WJ, Hyland CJT, Smith JA, Ariafard A. Computational Investigation into the Mechanistic Features of Bromide-Catalyzed Alcohol Oxidation by PhIO in Water. J Org Chem 2021; 86:2998-3007. [PMID: 33502190 DOI: 10.1021/acs.joc.0c02903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Iodosobenzene (PhIO) is known to be a potent oxidant for alcohols in the presence of catalytic bromide in water. In order to understand this important and practical oxidation process, we have conducted density functional theory studies to shed light on the reaction mechanism. The key finding of this study is that PhIO is not the reactive oxidant itself. Instead, the active oxidant is hypobromite (BrO-), which is generated by the reaction of PhIO with bromide through an SN2-type reaction. Critically, water acts as a cocatalyst in the generation of BrO- through lowering the activation energy of this process. This investigation also demonstrates why BrO- is a more powerful oxidant than PhIO in the oxidation of alcohols. Other halide additives have been reported experimentally to be less effective catalysts than bromide-our calculations provide a clear rationale for these observations. We also examined the effect of replacing water with methanol on the ease of the SN2 reaction, finding that the replacement resulted in a higher activation barrier for the generation of BrO-. Overall, this work demonstrates that the hypervalent iodine(III) reagent PhIO can act as a convenient and controlled precursor of the oxidant hypobromite if the right conditions are present.
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Affiliation(s)
- Kaveh Farshadfar
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Melissa J Bird
- School of Chemistry and Molecular Bioscience, Molecular Horizons Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Wesley J Olivier
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Christopher J T Hyland
- School of Chemistry and Molecular Bioscience, Molecular Horizons Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Jason A Smith
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Alireza Ariafard
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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4
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Zhang G, Tan H, Chen W, Shen HC, Lu Y, Zheng C, Xu H. Synthesis of NH-Sulfoximines by Using Recyclable Hypervalent Iodine(III) Reagents under Aqueous Micellar Conditions. CHEMSUSCHEM 2020; 13:922-928. [PMID: 31950602 DOI: 10.1002/cssc.201903430] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/17/2020] [Indexed: 05/28/2023]
Abstract
The synthesis of NH-sulfoximines from sulfides has been first developed under mild conditions in an aqueous solution with surfactant TPGS-750-M as the catalyst at room temperature. In this newly developed process, a simple and convenient recycling strategy to regenerate the indispensable hypervalent iodine(III) is used. The resulting 1,2,3-trifluoro-5-iodobezene can be recovered almost quantitively from the mixture by liquid-liquid extraction and then oxidized to give the corresponding iodine(III) species. This optimized procedure is compatible with a broad range of functional groups and can be easily performed on a gram scale, providing a green protocol for the synthesis of sulfoximines.
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Affiliation(s)
- Guocai Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Hongsheng Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Weichun Chen
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Hong C Shen
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Yue Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Hongxi Xu
- Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
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5
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Kita Y, Dohi T. Pioneering Metal-Free Oxidative Coupling Strategy of Aromatic Compounds Using Hypervalent Iodine Reagents. CHEM REC 2015. [DOI: 10.1002/tcr.201500020] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yasuyuki Kita
- College of Pharmaceutical Sciences; Ritsumeikan University; 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences; Ritsumeikan University; 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
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Baruah D, Saikia UP, Pahari P, Konwar D. Cu-nanoparticles on cellulose/H2O–CH3CN/microwave: a green system for the selective oxidation of alcohols to aldehydes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Zhu C, Yoshimura A, Wei Y, Nemykin VN, Zhdankin VV. Facile preparation and reactivity of bifunctional ionic liquid-supported hypervalent iodine reagent: a convenient recyclable reagent for catalytic oxidation. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.053] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Dohi T, Kamitanaka T, Mochizuki E, Ito M, Kita Y. Speedy and Clean Hypervalent Iodine/Nitroxyl Radical Mediated Oxidation of Alcohols Using Recyclable Adamantane Reagent with Highly Active 2-Azaadamantane- N-oxyl Organocatalyst. Chem Pharm Bull (Tokyo) 2012; 60:1442-7. [DOI: 10.1248/cpb.c12-00649] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University
| | | | | | - Motoki Ito
- College of Pharmaceutical Sciences, Ritsumeikan University
| | - Yasuyuki Kita
- College of Pharmaceutical Sciences, Ritsumeikan University
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Zhu C, Wei Y. An inorganic iodine-catalyzed oxidative system for the synthesis of benzimidazoles using hydrogen peroxide under ambient conditions. CHEMSUSCHEM 2011; 4:1082-1086. [PMID: 21853536 DOI: 10.1002/cssc.201100228] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Indexed: 05/31/2023]
Affiliation(s)
- Chenjie Zhu
- School of Chemical Engineering, Nangjing University of Science and Technology, Nanjing 210094, PR China
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10
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Yoshimura A, Banek CT, Yusubov MS, Nemykin VN, Zhdankin VV. Preparation, X-ray Structure, and Reactivity of 2-Iodylpyridines: Recyclable Hypervalent Iodine(V) Reagents. J Org Chem 2011; 76:3812-9. [DOI: 10.1021/jo200163m] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Christopher T. Banek
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Mekhman S. Yusubov
- The Siberian State Medical University and The Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Victor N. Nemykin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
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11
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Zhu C, Wei Y. A Simple and Highly Selective Biomimetic Oxidation of Alcohols with Hypervalent Iodine(III) Reagent Catalyzed by β-Cyclodextrin in Water. Catal Letters 2011. [DOI: 10.1007/s10562-011-0545-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Metal-free activation of H2O2 by synergic effect of ionic liquid and microwave: chemoselective oxidation of benzylic alcohols to carbonyls and unexpected formation of anthraquinone in aqueous condition. Mol Divers 2010; 15:687-95. [DOI: 10.1007/s11030-010-9292-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 11/08/2010] [Indexed: 10/18/2022]
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13
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Katrun P, Chiampanichayakul S, Korworapan K, Pohmakotr M, Reutrakul V, Jaipetch T, Kuhakarn C. PhI(OAc)2/KI-Mediated Reaction of Aryl Sulfinates with Alkenes, Alkynes, and α,β-Unsaturated Carbonyl Compounds: Synthesis of Vinyl Sulfones and β-Iodovinyl Sulfones. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000641] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Zhu C, Wei Y, Ji L. Catalytic Oxidation of Alcohols to Corresponding Aldehydes or Ketones with TEMPO-Mediated Iodosobenzene in Water in the Presence of a Surfactant. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903219427] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chenjie Zhu
- a School of Chemical Engineering, Nanjing University of Science and Technology , Nanjing, China
| | - Yunyang Wei
- a School of Chemical Engineering, Nanjing University of Science and Technology , Nanjing, China
| | - Lei Ji
- a School of Chemical Engineering, Nanjing University of Science and Technology , Nanjing, China
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15
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Facile oxidative hydrolysis of acetals to esters using hypervalent iodine(III)/LiBr combination in water. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.098] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Dohi T. Recycling and Catalytic Approaches for the Development of a Rare-Metal-Free Synthetic Method Using Hypervalent Iodine Reagent. Chem Pharm Bull (Tokyo) 2010; 58:135-42. [DOI: 10.1248/cpb.58.135] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University
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17
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Dohi T, Ito M, Yamaoka N, Morimoto K, Fujioka H, Kita Y. Hypervalent iodine(III): selective and efficient single-electron-transfer (SET) oxidizing agent. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.10.040] [Citation(s) in RCA: 177] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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DOHI T. Development of Rare Metal-Free Synthetic Method Using New Iodine Reagents. YAKUGAKU ZASSHI 2009; 129:1187-99. [DOI: 10.1248/yakushi.129.1187] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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