1
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Li Y, Meng Z, Zhu X, Hao XQ, Song MP. Cu(II)-Mediated Sulfonylation of (Hetero)arenes with TosMIC Using Monodentate Directing Groups. J Org Chem 2024; 89:3894-3906. [PMID: 38385785 DOI: 10.1021/acs.joc.3c02730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Monodentate chelation-assisted direct ortho-C-H sulfonylation of (hetero)arenes using TosMIC as the novel sulfonylating reagent has been developed. A broad range of substrates, including indolines, indoles, 2-phenylpyridines, and others were well tolerated to afford the corresponding products in moderate to good yields. Mechanistic studies revealed that the sulfonyl radical might be involved. Inspired by the above discovery, preliminary para-C-H sulfonylation of naphthalene substrate was also successfully realized. The current protocol featured with cheap metal catalysis, good functional group compatibility, and operational convenience.
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Affiliation(s)
- Yigao Li
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Zhuang Meng
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
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2
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Wu W, Zhang Z, Li J, Xia J, Han X, Weng Z. Copper Loading-Controlled Selective Synthesis of 2,5-Bis(trifluoromethyl) and Monotrifluoromethyl-Substituted Oxazoles. J Org Chem 2024; 89:589-598. [PMID: 38149374 DOI: 10.1021/acs.joc.3c02315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
A general domino annulation reaction of sulfonylmethyl isocyanide with trifluoroacetic anhydride in the presence of copper chloride as an additive is developed. The reaction affords 2,5-bis(trifluoromethyl)oxazoles in modest to good yields under mild conditions. A wide variety of sulfonylmethyl isocyanide and perfluorocarboxylic anhydride substrates are amenable to this transformation. Under a higher copper salt loading conditions, the reaction led to the formation of monotrifluoromethyl-substituted oxazole product.
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Affiliation(s)
- Wei Wu
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Zipeng Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jialong Li
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Jianrong Xia
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Xiaoyan Han
- Testing and Analysis Center, Soochow University, Suzhou 215123, China
| | - Zhiqiang Weng
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
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3
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Abdullah S, Ganguly S. An overview of imidazole and its analogues as potent anticancer agents. Future Med Chem 2023; 15:1621-1646. [PMID: 37727960 DOI: 10.4155/fmc-2023-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
Abstract
The quest for novel, physiologically active imidazoles remains an exciting topic of research among medicinal chemists. The imidazole ring is a five-membered aromatic heterocycle that is found in both natural and synthesized compounds. Multiple anticancer drug classes are currently available on the market, but concerns including toxicity, limited efficacy and solubility have lowered the overall therapeutic index. Therefore, the hunt for new potential chemotherapeutic agents persists. The development of imidazole as a reliable and safer alternative to anticancer treatment is generating much attention among experts. Tubulin or microtubule polymerization inhibition and changes in the structure and function of DNA, VEGF, topoisomerase, kinases, histone deacetylases and certain other proteins that affect gene expression are among the putative targets.
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Affiliation(s)
- Salik Abdullah
- Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Jharkhand, 835215, India
| | - Swastika Ganguly
- Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Jharkhand, 835215, India
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4
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Nakamura K, Kumagai Y, Kobayashi A, Suzuki M, Yoshida S. Facile synthesis of sulfinate esters from aryl iodides via direct oxidation of thioesters. Org Biomol Chem 2023; 21:6886-6891. [PMID: 37602371 DOI: 10.1039/d3ob01108a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
A practical method to synthesize sulfinate esters from aryl iodides is disclosed. Direct oxidation of thioesters prepared by copper-catalyzed C-S formation of aryl iodides realized the efficient synthesis of sulfinate esters. Due to the good accessibility of aryl iodides, a wide variety of sulfinate esters were prepared from easily available starting materials such as carboxylic acids and anilines.
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Affiliation(s)
- Keisuke Nakamura
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
| | - Yukiko Kumagai
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
| | - Akihiro Kobayashi
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Minori Suzuki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
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5
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Hammond JM, Gardiner MG, Malins LR. Amino Acid Sulfinate Salts as Alkyl Radical Precursors. Org Lett 2023; 25:3157-3162. [PMID: 37093619 DOI: 10.1021/acs.orglett.3c01112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
A general approach to the synthesis of amino acid sulfinate salts from commercially available α-chiral hydroxylated amino acids is reported. These reagents are shown to be valuable precursors to alkyl radicals under mild photochemical oxidation conditions. The photochemically generated amino acid radicals engage readily with alkyl and aryl disulfide radical traps to afford a diverse suite of modified amino acids.
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Affiliation(s)
- Joshua M Hammond
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Michael G Gardiner
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Lara R Malins
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Australian National University, Canberra, ACT 2601, Australia
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6
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Valle-González OA, Salazar-Bello ÁI, Armando Luján-Montelongo J. Stereoselective synthesis of vinyl nitriles through a Ramberg-Bäcklund approach. Org Biomol Chem 2023; 21:2894-2898. [PMID: 36928119 DOI: 10.1039/d3ob00214d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
The applicability of vinyl nitriles in the preparation of pharmaceuticals, polymers, and other valuable materials benefits from robust preparative methodologies. In this work, we present a novel approach for the synthesis of vinyl nitriles based on the Ramberg-Bäcklund olefination reaction (RBR). While there are few examples for accessing functionalized olefins using the RBR, we believe that this methodology embodies useful means for installing privileged vinylnitrile building blocks, such as the acrylonitrile fragment of the US FDA-approved antiviral rilpivirine.
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Affiliation(s)
- Octavio A Valle-González
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, 07360 Ciudad de México, Mexico.
| | - Ángel I Salazar-Bello
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, 07360 Ciudad de México, Mexico.
| | - J Armando Luján-Montelongo
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, 07360 Ciudad de México, Mexico.
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7
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Yang J, Dong H, Yan K, Song X, Yu J, Wen J. Isocyanide‐Induced Esterification of Sulfinic Acids to Access Sulfinates. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jianjing Yang
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Haozhe Dong
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Kelu Yan
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Xiaodan Song
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Jie Yu
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
| | - Jiangwei Wen
- Institute of Medicine and Materials Applied Technologies College of Chemistry and Chemical Engineering Qufu Normal University Qufu Shandong 273165 People's Republic of China
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8
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Nguyen LAT, Le TN, Duong CT, Vo CT, Duus F, Luu TXT. Direct synthesis of sulfinic esters via ultrasound accelerated tandem reaction of thiols and alcohols with N-bromosuccinimide. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1928669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Lan-Anh Thi Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Tri-Nghia Le
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Cong-Thang Duong
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Chi-Tam Vo
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Fritz Duus
- Department of Science, Systems and Models, Roskilde University Roskilde, Denmark
| | - Thi Xuan Thi Luu
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
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9
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Li Y, Wang XY, Ren X, Dou B, Zhu X, Hao XQ, Song MP. Iron-Mediated Selective Sulfonylmethylation of Aniline Derivatives with p-Toluenesulfonylmethyl Isocyanide (TosMIC). J Org Chem 2021; 86:7179-7188. [PMID: 33960194 DOI: 10.1021/acs.joc.1c00500] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An iron-mediated highly selective C-H sulfonylmethylation of aniline derivatives with p-toluenesulfonylmethyl isocyanide in a mixture solvent of H2O and PEG400 under an Ar atmosphere has been realized. This transformation proceeds with operational convenience, use of earth-abundant metal catalyst and nontoxic media, broad substrate scope, and good functional group tolerance. The current methodology could be applied to the regioselective C-H sulfonylmethylation of indolines, tetrahydroquinolines, and tertiary anilines.
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Affiliation(s)
- Yigao Li
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xu-Yan Wang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiaohuang Ren
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Baoheng Dou
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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10
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Wen D, Zheng Q, Wang C, Tu T. Rare-Earth-Catalyzed Transsulfinamidation of Sulfinamides with Amines. Org Lett 2021; 23:3718-3723. [PMID: 33881895 DOI: 10.1021/acs.orglett.1c01106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A rare-earth-catalyzed transsulfinamidation of primary sulfinamides with alkyl, aryl, and heterocyclic amines for the synthesis of diverse secondary and tertiary sulfinamides has been realized. Unlike transition metal-catalyzed cross-coupling approaches restricted to non-commercially available disubstituted O-benzoyl hydroxylamines, this newly developed protocol is suitable for diverse readily available primary and secondary amines without any modifications. Excellent catalytic activity and selectivity are achieved with Eu(OTf)3 under mild reaction conditions, which extends the applicability of rare-earth catalysis.
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Affiliation(s)
- Daheng Wen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qingshu Zheng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Chaoyu Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.,Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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11
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Suzuki M, Kanemoto K, Nakamura Y, Hosoya T, Yoshida S. Palladium-Catalyzed Sulfinylation of Aryl- and Alkenylborons with Sulfinate Esters. Org Lett 2021; 23:3793-3797. [PMID: 33908784 PMCID: PMC8289295 DOI: 10.1021/acs.orglett.1c01292] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
An efficient, direct
sulfinylation of organoborons catalyzed by
palladium is disclosed. Treatment of organoborons and sulfinate esters
in the presence of a palladium precatalyst provided a broad range
of sulfoxides. Various organosulfur compounds having oxidizable functional
groups were successfully prepared through the sulfoxide synthesis.
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Affiliation(s)
- Minori Suzuki
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.,Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan
| | - Kazuya Kanemoto
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yu Nakamura
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.,Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan
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12
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Srinivasulu C, Sagar NR, Vishwanatha TM, Durgamma S, Sureshbabu VV. Synthesis of N β-Protected Amino Sulfenyl Methyl Formamides and Sulfonyl Methyl Formamides: A Simple Protocol. ACS OMEGA 2021; 6:4680-4686. [PMID: 33644575 PMCID: PMC7905828 DOI: 10.1021/acsomega.0c05419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Chiral amino acid-derived formamides represent one of the most versatile components in multicomponent reactions. Herein, we describe a facile synthesis of Nβ-protected amino sulfenyl methyl formamides and sulfonyl methyl formamides via the Mannich reaction of Nα-protected amino alkyl thiols followed by oxidation using 3-chloroperbenzoic acid (m-CPBA). This protocol is applicable to a wide range of Fmoc- and Cbz-protected amino acids. Notably, the reaction provides high yield and retains the stereochemistry of the chiral center of the starting component.
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13
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Yadav A, Ambule MD, Kant R, Srivastava AK. Silver/Palladium Relay Catalyzed Cross‐Coupling of
N'
‐Acetyl‐8‐quinolinesulfonylhydrazide with Alcohols: An Easy Access to 8‐Quinolinesulfinate Esters. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000911] [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)
- Anamika Yadav
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute 226031 Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Mayur D. Ambule
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute 226031 Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Ruchir Kant
- Molecular and Structural Biology Division CSIR‐Central Drug Research Institute 226031 Lucknow India
| | - Ajay K. Srivastava
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute 226031 Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
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14
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Wei Y, He J, Liu Y, Xu L, Vaccaro L, Liu P, Gu Y. Sulfenylation of Arenes with Ethyl Arylsulfinates in Water. ACS OMEGA 2020; 5:18515-18526. [PMID: 32743230 PMCID: PMC7392521 DOI: 10.1021/acsomega.0c02590] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
A tetrabutylammonium iodide-mediated direct sulfenylation of arenes with ethyl arylsulfinates in water was developed. Various electron-rich arenes and ethyl arylsulfinates were investigated in the reaction, and a series of aryl sulfides were obtained in excellent yields. The advantages of this green protocol were simple reaction conditions (metal-free, water as the solvent, and under air), odorless and easily available sulfur reagent, broad substrate scope, and gram-scale synthesis. Moreover, the potential application of aryl sulfides was exemplified by further transformations.
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Affiliation(s)
- Yueting Wei
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Jing He
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Yali Liu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Liang Xu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Luigi Vaccaro
- Laboratory
of Green S. O. C., Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Ping Liu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Yanlong Gu
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, Hubei Key Laboratory of Material Chemistry
and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, 1037 Luoyu Road, Hongshan District, Wuhan 430074, China
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15
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Korawat H, Basak AK. K 2CO 3-Catalyzed Rapid Conversion of N-Sulfonylhydrazones to Sulfinates. ACS OMEGA 2020; 5:17818-17827. [PMID: 32715267 PMCID: PMC7377682 DOI: 10.1021/acsomega.0c02616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
N-Sulfonylhydrazones derived from alkyl, aryl, and heteroaryl aldehydes and ketones undergo rapid conversion into the corresponding sulfinates when heated with 10 mol % K2CO3 in N,N'-dimethylethylene urea (DMEU) at elevated temperature. The reaction conditions are amenable to several functional groups and suitable for gram-scale synthesis. Under these base-catalyzed conditions, N-tosylhydrazones derived from O-allylated and O-propargylated 2-hydroxyarylaldehydes do not undergo the well-established intramolecular [3 + 2]-cycloaddition reactions and generate corresponding sulfinates in good yields. The base-catalyzed transformation proceeds via crucial rapid intermolecular protonation of the diazo intermediate 11 to generate diazonium ion 12, which upon nucleophilic displacement by the sulfonyl ion 10 provides the desired sulfinate selectively.
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16
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Kobayashi A, Matsuzawa T, Hosoya T, Yoshida S. One-pot Synthesis of Allyl Sulfides from Sulfinate Esters and Allylsilanes through Reduction of Alkoxysulfonium Intermediates. CHEM LETT 2020. [DOI: 10.1246/cl.200285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Akihiro Kobayashi
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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17
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Yang CH, Wu C, Zhang JM, Tao XZ, Xu J, Dai JJ, Xu HJ. Electrochemical Oxidative Esterification of Thiophenols: Efficient Access to Sulfinic Esters. Curr Org Synth 2020; 17:540-547. [PMID: 32562526 DOI: 10.2174/1570179417666200620215704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/13/2020] [Accepted: 05/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The sulfinic esters are important and useful building blocks in organic synthesis. OBJECTIVE The aim of this study was to develop a simple and efficient method for the synthesis of sulfinic esters. MATERIALS AND METHODS Constant current electrolysis from thiols and alcohols was selected as the method for the synthesis of sulfinic esters. RESULTS AND DISCUSSION A novel electrochemical method for the synthesis of sulfinic esters from thiophenols and alcohols has been developed. Up to 27 examples of sulfinic esters have been synthesized using the current methods. This protocol shows good functional group tolerance as well as high efficiency. In addition, this protocol can be easily scaled up with good efficiency. Notably, heterocycle-containing substrates, including pyridine, thiophene, and benzothiazole, gave the desired products in good yields. A plausible reaction mechanism is proposed. CONCLUSION This research not only provides a green and efficient method for the synthesis of sulfinic esters but also shows new applications of electrochemistry in organic synthesis. It is considered that this green and efficient synthetic protocol used to prepare sulfinic esters will have good applications in the future.
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Affiliation(s)
- Chun-Hui Yang
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Cheng Wu
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Jun-Ming Zhang
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Xiang-Zhang Tao
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Jun Xu
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Jian-Jun Dai
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Hua-Jian Xu
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
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18
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Kobayashi A, Matsuzawa T, Hosoya T, Yoshida S. Sulfoxide synthesis from sulfinate esters under Pummerer-like conditions. Chem Commun (Camb) 2020; 56:5429-5432. [PMID: 32292973 DOI: 10.1039/d0cc02253e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A facile synthetic method for the preparation of allyl sulfoxides by S-allylation of sulfinate esters proceeds through sulfonium intermediates without [3,3]-sigmatropic rearrangement and further Pummerer-type reactions of the resulting allyl sulfoxides. On the basis of the plausible reaction mechanism involving sulfonium salt intermediates, S-alkynylation and S-arylation were also accomplished.
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Affiliation(s)
- Akihiro Kobayashi
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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19
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Yang J, Wang XC, Zhou H, Duan J, Xie D, Ma B, Wang G, Wu C. Electrochemical Synthesis of Sulfinic Esters via Aerobic Oxidative Esterification of Thiophenols with Alcohols. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707966] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A method for the electrochemical synthesis of sulfinic esters by aerobic oxidative coupling of thiophenols and alcohols has been developed. Using electrons as the redox reagent and O2 in air as the oxygen source, the reactions proceeded smoothly at room temperature, even for a gram-scale preparation. No use of catalyst, clean redox reagent, green and abundant oxygen source, and mild reaction conditions make this strategy eco-friendly.
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Affiliation(s)
- Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Hongyan Zhou
- College of Chemistry and Chemical Engineering, Northwest Normal University
- College of Science, Gansu Agricultural University
| | - Jiaokui Duan
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Dongtai Xie
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Ganggang Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University
| | - Chengqi Wu
- College of Chemistry and Chemical Engineering, Northwest Normal University
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20
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Zheng X, Liu W, Zhang D. Recent Advances in the Synthesis of Oxazole-Based Molecules via van Leusen Oxazole Synthesis. Molecules 2020; 25:molecules25071594. [PMID: 32244317 PMCID: PMC7180750 DOI: 10.3390/molecules25071594] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 11/25/2022] Open
Abstract
Oxazole compounds, including one nitrogen atom and one oxygen atom in a five-membered heterocyclic ring, are present in various biological activities. Due to binding with a widespread spectrum of receptors and enzymes easily in biological systems through various non-covalent interactions, oxazole-based molecules are becoming a kind of significant heterocyclic nucleus, which have received attention from researchers globally, leading them to synthesize diverse oxazole derivatives. The van Leusen reaction, based on tosylmethylisocyanides (TosMICs), is one of the most appropriate strategies to prepare oxazole-based medicinal compounds. In this review, we summarize the recent advances of the synthesis of oxazole-containing molecules utilizing the van Leusen oxazole synthesis from 1972, aiming to look for potential oxazole-based medicinal compounds, which are valuable information for drug discovery and synthesis.
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Affiliation(s)
- Xunan Zheng
- College of Chemistry, Jilin University, Changchun 130012, China;
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Wei Liu
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang 110866, China
- Correspondence: (W.L.); (D.Z.); Tel.: +86-188-1775-2588 (W.L.); +86-431-8783-6471 (D.Z.)
| | - Dawei Zhang
- College of Chemistry, Jilin University, Changchun 130012, China;
- Correspondence: (W.L.); (D.Z.); Tel.: +86-188-1775-2588 (W.L.); +86-431-8783-6471 (D.Z.)
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21
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Suzuki A, Mutoh Y, Tsuchida N, Fung CW, Kikkawa S, Azumaya I, Saito S. Synthesis and Systematic Structural Analysis of Cationic Half-Sandwich Ruthenium Chalcogenocarbonyl Complexes. Chemistry 2020; 26:3795-3802. [PMID: 31925839 DOI: 10.1002/chem.201904600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 11/07/2022]
Abstract
Although the chemistry of transition-metal complexes with carbonyl (CO) and thiocarbonyl (CS) ligands has been well developed, their heavier analogues, namely selenocarbonyl (CSe) and tellurocarbonyl (CTe) complexes remain scarce. The limited availability of such CSe and CTe complexes has so far hampered our understanding of the differences between such chalcogenocarbonyl (CE: E=O, S, Se, Te) ligands. Herein, we report the synthesis and properties of a series of cationic half-sandwich ruthenium CE complexes of the type [CpRu(CE)(H2 IMes)(CNCH2 Ts)][BArF 4 ] (Cp=η5 -C5 H5 - ; H2 IMes=1,3-dimesitylimidazolin-2-ylidene; ArF =3,5-(CF3 )2 C6 H3 ). A combination of X-ray diffraction analyses, NMR spectroscopic analyses, and DFT calculations revealed an increasing π-accepting ability of the CE ligands in the order O<S<Se<Te. A variable-temperature NMR analysis of the thus obtained chiral-at-metal CE complexes indicated high stereochemical stability.
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Affiliation(s)
- Ayumi Suzuki
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuichiro Mutoh
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Noriko Tsuchida
- Department of Liberal Arts, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama-machi, Iruma-gun, Saitama, 350-0495, Japan
| | - Chi-Wai Fung
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-3 Miyama, Funabashi-shi, Chiba, 274-8510, Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-3 Miyama, Funabashi-shi, Chiba, 274-8510, Japan
| | - Shinichi Saito
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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22
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Zheng X, Ma Z, Zhang D. Synthesis of Imidazole-Based Medicinal Molecules Utilizing the van Leusen Imidazole Synthesis. Pharmaceuticals (Basel) 2020; 13:ph13030037. [PMID: 32138202 PMCID: PMC7151684 DOI: 10.3390/ph13030037] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 12/13/2022] Open
Abstract
Imidazole and its derivatives are one of the most vital and universal heterocycles in medicinal chemistry. Owing to their special structural features, these compounds exhibit a widespread spectrum of significant pharmacological or biological activities, and are widely researched and applied by pharmaceutical companies for drug discovery. The van Leusen reaction based on tosylmethylisocyanides (TosMICs) is one of the most appropriate strategies to synthetize imidazole-based medicinal molecules, which has been increasingly developed on account of its advantages. In this review, we summarize the recent developments of the chemical synthesis and bioactivity of imidazole-containing medicinal small molecules, utilizing the van Leusen imidazole synthesis from 1977.
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Affiliation(s)
- Xunan Zheng
- College of Chemistry, Jilin University, Changchun 130012, China; (X.Z.); (Z.M.)
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Zhengning Ma
- College of Chemistry, Jilin University, Changchun 130012, China; (X.Z.); (Z.M.)
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Dawei Zhang
- College of Chemistry, Jilin University, Changchun 130012, China; (X.Z.); (Z.M.)
- Correspondence: ; Tel.: +86-431-8783-6471
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23
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Altundas B, Marrazzo JPR, Fleming FF. Metalated isocyanides: formation, structure, and reactivity. Org Biomol Chem 2020; 18:6467-6482. [PMID: 32766609 DOI: 10.1039/d0ob01340d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metalated isocyanides are highly versatile organometallics. Central to the reactivity of metalated isocyanides is the presence of two orthogonally reactive carbons, a highly nucleophilic "carbanion" inductively stabilized by a carbene-like isocyanide carbon. The two reactivities are harnessed in the attack of metalated isocyanides on π-electrophiles where an initial nucleophilic attack leads to an electron pair that cyclizes onto the terminal isocyanide carbon in a rapid route to diverse, nitrogenous heterocycles. Harnessing the potent nucleophilicity of metalated isocyanides while preventing electrophilic attack on the terminal isocyanide carbon has largely been driven by empirical heuristics. This review provides a foundational understanding by surveying the formation, structure, and properties of metalated isocyanides. The focus on the interplay between the structure and reactivity of metalated isocyanides is anticipated to facilitate the development and deployment of these exceptional nucleophiles in complex bond constructions.
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Affiliation(s)
- Bilal Altundas
- Chemistry, Drexel University, Philadelphia, Pennsylvania, USA.
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24
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Fernández-d'Arlas B. Tough and Functional Cross-linked Bioplastics from Sheep Wool Keratin. Sci Rep 2019; 9:14810. [PMID: 31616010 PMCID: PMC6794297 DOI: 10.1038/s41598-019-51393-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/20/2019] [Indexed: 11/21/2022] Open
Abstract
Novel bioplastic films derived from wool keratins were prepared by protein solution in an alkaline mild oxidative method that splits disulphide (-S-S-) bonds. The native structure of the keratin macromolecules was partially modified upon extraction as revealed by the decrease of the β-sheet to α-helices/coils ratio but high molecular weight fractions (31, 22 and 13 KDa) was retained permitting film formation and plastic behaviour of films. Keratin films were plasticised with glycerol and sodium dodecyl sulphonic acid (SDS), which provided different hydrophobic character to bioplastics. Water content in the films depend on the relative humidity (RH), being able to absorb up to 35 wt% H2O at an ambient of 80% RH. Films were mechanically, thermally and optically analysed. The spectroscopic analyses revelled that these bioplastic films absorb UV light, what is interesting for packaging applications. Thermogravimetric and thermomechanical analysis revealed high stability of keratin macromolecules up to 200 °C with no inherent thermal transitions. Tough bioplastics (19 ± 4 MJ∙ m-3) were obtained after thermal cross-linking with glycerol and formaldehyde outperforming mechanical properties previously reported for protein films.
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Affiliation(s)
- Borja Fernández-d'Arlas
- Institute for Advanced Materials (INAMAT), Universidad Pública de Navarra (UPNA), Centro Jerónimo de Ayanz, Pamplona, España, Spain.
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25
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Ji YZ, Li HJ, Zhang JY, Wu YC. Sodium Arenesulfinates-Involved Sulfinate Synthesis Revisited: Improved Synthesis and Revised Reaction Mechanism. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yuan-Zhao Ji
- School of Marine Science and Technology; Harbin Institute of Technology; 2 Wenhuaxi Road Weihai 264209 P.R. China
| | - Hui-Jing Li
- School of Marine Science and Technology; Harbin Institute of Technology; 2 Wenhuaxi Road Weihai 264209 P.R. China
| | - Jin-Yu Zhang
- School of Marine Science and Technology; Harbin Institute of Technology; 2 Wenhuaxi Road Weihai 264209 P.R. China
| | - Yan-Chao Wu
- School of Marine Science and Technology; Harbin Institute of Technology; 2 Wenhuaxi Road Weihai 264209 P.R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS); Institute of Chemistry Chinese Academy of Sciences; No.2, 1st North Street, Zhongguancun Beijing 100190 P.R. China
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26
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Alwedi E, Lujan-Montelongo JA, Pitta BR, Chao A, Cortés-Mejía R, Del Campo JM, Fleming FF. Asmic: An Exceptional Building Block for Isocyanide Alkylations. Org Lett 2018; 20:5910-5913. [PMID: 30188137 DOI: 10.1021/acs.orglett.8b02574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Asmic addresses the long-standing challenge of alkylating isocyanides, providing access to isocyanides with diverse substitution patterns. The o-anisylsulfanyl group serves a critical dual role by facilitating deprotonation-alkylation and providing a latent nucleophilic site through an unusual arylsulfanyl-lithium exchange.
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Affiliation(s)
- Embarek Alwedi
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - J Armando Lujan-Montelongo
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Bhaskar R Pitta
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Allen Chao
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Rodrigo Cortés-Mejía
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Jorge M Del Campo
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Fraser F Fleming
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
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27
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Choudhary D, Khatri V, Basak AK. Wittig Ylide Mediated Decomposition of N-Sulfonylhydrazones to Sulfinates. Org Lett 2018; 20:1703-1706. [PMID: 29553748 DOI: 10.1021/acs.orglett.7b03953] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N-Sulfonylhydrazones generate sulfinates selectively when treated with a stabilized Wittig ylide in a polar aprotic solvent at elevated temperature. The transition metal and base free decomposition method is applicable to N-sulfonylhydrazones generated from a number of aromatic and heteroaromatic aldehydes and ketones. In the case of N-tosylhydrazones derived from O-allyl and O-propargyl salicylaldehydes, selective formation of sulfinate occurs over intramolecular [3 + 2]-cycloaddition reaction.
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Affiliation(s)
- Deepika Choudhary
- Department of Chemistry , University of Rajasthan , JLN Marg, Jaipur , 302004 , India
| | - Vineeta Khatri
- Department of Chemistry , University of Rajasthan , JLN Marg, Jaipur , 302004 , India
| | - Ashok K Basak
- Department of Chemistry , University of Rajasthan , JLN Marg, Jaipur , 302004 , India.,Department of Chemistry, Institute of Science , Banaras Hindu University , Varanasi , 221005 , India
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28
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Silva-Cuevas C, Paleo E, León-Rayo DF, Lujan-Montelongo JA. An expeditious and efficient bromomethylation of thiols: enabling bromomethyl sulfides as useful building blocks. RSC Adv 2018; 8:24654-24659. [PMID: 35557855 PMCID: PMC9092473 DOI: 10.1039/c8ra04002h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 06/28/2018] [Indexed: 11/25/2022] Open
Abstract
A facile and highly efficient method for the bromomethylation of thiols, using paraformaldehyde and HBr/AcOH, has been developed, which advantageously minimizes the generation of highly toxic byproducts. The preparation of 22 structurally diverse α-bromomethyl sulfides illustrates the chemo-tolerant applicability while bromo-lithium exchange and functionalization sequences, free radical reductions, and additions of the title compounds demonstrate their synthetic utility. A new method for the bromomethylation of thiols using paraformaldehyde and HBr/AcOH, minimizes the generation of toxic byproducts. Synthetic utility of α-bromomethyl sulfides was demonstrated through umpolung and free radical chemistry.![]()
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Affiliation(s)
- Carolina Silva-Cuevas
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- 07360 Ciudad de México
- México
| | - Ehecatl Paleo
- Facultad de Ciencias
- Universidad Nacional Autónoma de México
- Ciudad Universitaria
- Ciudad de México
- México
| | - David F. León-Rayo
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- 07360 Ciudad de México
- México
| | - J. Armando Lujan-Montelongo
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- 07360 Ciudad de México
- México
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29
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30
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Chepyshev SV, Lujan-Montelongo JA, Chao A, Fleming FF. Alkenyl Isocyanide Conjugate Additions: A Rapid Route to γ-Carbolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sergiy V. Chepyshev
- Department of Chemistry; Drexel University; 32 South 32nd St. Philadelphia PA 19104 USA
| | - J. Armando Lujan-Montelongo
- Departmento de Química; Centro de Investigación y de Estudios Avanzados (Cinvestav); Av. Instituto Politécnico Nacional 2508 Ciudad de México 07360 México
| | - Allen Chao
- Department of Chemistry; Drexel University; 32 South 32nd St. Philadelphia PA 19104 USA
| | - Fraser F. Fleming
- Department of Chemistry; Drexel University; 32 South 32nd St. Philadelphia PA 19104 USA
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31
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Chepyshev SV, Lujan-Montelongo JA, Chao A, Fleming FF. Alkenyl Isocyanide Conjugate Additions: A Rapid Route to γ-Carbolines. Angew Chem Int Ed Engl 2017; 56:4310-4313. [PMID: 28295938 PMCID: PMC5667947 DOI: 10.1002/anie.201612574] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/07/2017] [Indexed: 11/05/2022]
Abstract
Isocyanides are exceptional building blocks, the wide deployment of which in multicomponent and metal-insertion reactions belies their limited availability. The first conjugate addition/alkylation to alkenyl isocyanides is described, which addresses this deficiency. An array of organolithiums, magnesiates, enolates, and metalated nitriles add conjugately to β- and β,β-disubstituted arylsulfonyl alkenyl isocyanides to rapidly assemble diverse isocyanide scaffolds. The intermediate metalated isocyanides are efficiently trapped with electrophiles to generate substituted isocyanides incorporating contiguous tri- and tetra-substituted centers. The substituted isocyanides are ideally functionalized for elaboration into synthetic targets as illustrated by the three-step synthesis of γ-carboline N-methyl ingenine B.
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Affiliation(s)
- Sergiy V Chepyshev
- Department of Chemistry, Drexel University, 32 South 32nd St., Philadelphia, PA, 19104, USA
| | - J Armando Lujan-Montelongo
- Departmento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Av. Instituto Politécnico Nacional 2508, Ciudad de México, 07360, México
| | - Allen Chao
- Department of Chemistry, Drexel University, 32 South 32nd St., Philadelphia, PA, 19104, USA
| | - Fraser F Fleming
- Department of Chemistry, Drexel University, 32 South 32nd St., Philadelphia, PA, 19104, USA
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32
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Li Y, Zhu F, Wang Z, Wu XF. Synthesis of Thioethers and Thioesters with Alkyl Arylsulfinates as the Sulfenylation Agent under Metal-Free Conditions. Chem Asian J 2016; 11:3503-3507. [DOI: 10.1002/asia.201601376] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Indexed: 01/31/2023]
Affiliation(s)
- Yahui Li
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29 a 18059 Rostock Germany
| | - Fengxiang Zhu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29 a 18059 Rostock Germany
| | - Zechao Wang
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29 a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29 a 18059 Rostock Germany
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33
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Lu S, Zhu X, Li K, Guo YJ, Wang MD, Zhao XM, Hao XQ, Song MP. Reactivity of p-Toluenesulfonylmethyl Isocyanide: Iron-Involved C–H Tosylmethylation of Imidazopyridines in Nontoxic Media. J Org Chem 2016; 81:8370-7. [DOI: 10.1021/acs.joc.6b01552] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuai Lu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Ke Li
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Yu-Jing Guo
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Meng-Dan Wang
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xue-Mei Zhao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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34
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Ji YZ, Wang M, Li HJ, Liu Y, Wu YC. Direct Sulfination of Nonactivated Alcohols with Arylsulfonylmethyl Isocyanides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600629] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yuan-Zhao Ji
- School of Marine Science and Technology; Harbin Institute of Technology; No. 2, Wenhuaxi Road 264209 Weihai P. R. China
| | - Meirong Wang
- School of Materials Science and Engineering; Harbin Institute of Technology; No. 2, Wenhuaxi Road 264209 Weihai P. R. China
| | - Hui-Jing Li
- School of Marine Science and Technology; Harbin Institute of Technology; No. 2, Wenhuaxi Road 264209 Weihai P. R. China
| | - Ying Liu
- School of Marine Science and Technology; Harbin Institute of Technology; No. 2, Wenhuaxi Road 264209 Weihai P. R. China
| | - Yan-Chao Wu
- School of Marine Science and Technology; Harbin Institute of Technology; No. 2, Wenhuaxi Road 264209 Weihai P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS); Institute of Chemistry Chinese Academy of Sciences; No.2, 1st North Street, Zhongguancun 100190 Beijing P. R. China
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