1
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Guo H, Zhou B, Chang J, Chang W, Feng J, Zhang Z. Multicomponent cyclization with azides to synthesize N-heterocycles. Org Biomol Chem 2023; 21:8054-8074. [PMID: 37801029 DOI: 10.1039/d3ob01115a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Heterocyclic compounds, both naturally derived and synthetically produced, constitute a wide variety of biologically active and industrially important compounds. The synthesis and application of heterocyclic compounds have garnered significant attention and experienced rapid growth in recent decades. Organic azides, due to their unique properties and distinctive reactivity, have become a convenient chemical tool for achieving a wide range of heterocycles such as triazoles and tetrazoles. Importantly, the field of multicomponent reaction (MCR) chemistry provides a convergent approach to access various N-heterocyclic scaffolds, offering novelty, diversity, and complexity. However, the exploration of MCR pathways to N-heterocyclic compounds remains incomplete. Here, we review the use of multicomponent reactions for the preparation of N-heterocycles. A wide range of reactions based on azides for the synthesis of various types of N-heterocyclic systems have been developed.
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Affiliation(s)
- Hong Guo
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Bei Zhou
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Jingjing Chang
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Wenxu Chang
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Jiyao Feng
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Zhenhua Zhang
- College of Science, China Agricultural University, Beijing 100193, China.
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2
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Chen WY, Lin WH, Kuo CJ, Liang CF. Base-mediated ketenimine formation from N-sulfonylthioimidates for the synthesis of 5-amino-1-vinyl/aryl-1,2,3-triazoles. Chem Commun (Camb) 2023; 59:1297-1300. [PMID: 36633138 DOI: 10.1039/d2cc06708k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
N-Sulfonylthioimidate was converted to ketenimine under basic conditions. The reaction with vinyl/aryl azides was induced to cause dipolar cycloaddition to form 5-amino-1-vinyl/aryl-1,2,3-triazoles. The advantages of this method are high efficiency, structural diversity of products favorable yields and applicability to gram-scale operations.
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Affiliation(s)
- Wan-Yu Chen
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wei-Han Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chia-Jou Kuo
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chien-Fu Liang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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3
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Differentiation between Isomeric 4,5-Functionalized 1,2,3-Thiadiazoles and 1,2,3-Triazoles by ESI-HRMS and IR Ion Spectroscopy. Molecules 2023; 28:molecules28030977. [PMID: 36770641 PMCID: PMC9920699 DOI: 10.3390/molecules28030977] [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: 12/27/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
A large variety of 1,2,3-thiadiazoles and 1,2,3-triazoles are used extensively in modern pure and applied organic chemistry as important structural blocks of numerous valuable products. Creation of new methods of synthesis of these isomeric compounds requires the development of reliable analytical tools to reveal the structural characteristics of these novel compounds, which are able to distinguish between isomers. Mass spectrometry (MS) is a clear choice for this task due to its selectivity, sensitivity, informational capacity, and reliability. Here, the application of electrospray ionization (ESI) with ion detection in positive and negative modes was demonstrated to be useful in structural studies. Additionally, interconversion of isomeric 4,5-functionalized 1,2,3-triazoles and 1,2,3-thiadiazoles was demonstrated. Application of accurate mass measurements and tandem mass spectrometry in MS2 and MS3 modes indicated the occurrence of gas-phase rearrangement of 1,2,3-triazoles into 1,2,3-thiadiazoles under (+)ESI-MS/MS conditions, independent of the nature of substituents, in line with the reaction in the condensed phase. Infrared multiple photon dissociation (IRMPD) spectroscopy enabled the establishment of structures of some of the most crucial common fragment ions, including [M+H-N2]+ and [M+H-N2-RSO2]+ species. The (-)ESI-MS/MS experiments were significantly more informative for the sulfonyl alkyl derivatives compared to the sulfonyl aryl ones. However, there was insufficient evidence to confirm the solution-phase transformation of 1,2,3-thiadiazoles into the corresponding 1,2,3-triazoles.
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4
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Ilkin VG, Filimonov VO, Seliverstova EA, Novikov MS, Beryozkina TV, Gagarin AA, Belskaya NP, Muthipeedika NJ, Bakulev VA, Dehaen W. Thioisomünchnones versus Acrylamides via Copper-Catalyzed Reaction of Thioamides with Diazocarbonyl Compounds. J Org Chem 2022; 87:12196-12213. [PMID: 36007261 DOI: 10.1021/acs.joc.2c01352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel carbenoid-mediated approach to thioisomünchnones was developed by intermolecular copper-catalyzed reactions of diazoacetamides with aromatic and heteroaromatic thioamides bearing a pyrrolidine moiety. The direction of the reaction can be switched toward 2-amino-2-heteroarylacrylamides by replacing the pyrrolidine with an aniline group or by the use of 2-cyano-2-diazoacetamides. The proposed mechanism and DFT calculations allowed us to rationalize the effect of substituents on the reaction direction. Effective methods were found for the synthesis of previously unknown both 2-heteroarylthioisomünchones and 2-heteroarylacrylamides, based on a wide scope of available reagents with a similar structure. Some of the synthesized thioisomünchnones exhibited multicolor fluorescence in the solid state and solutions.
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Affiliation(s)
- Vladimir G Ilkin
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia.,Molecular Design and Synthesis, Department of Chemistry, KU Leuven, B-3001Leuven, Belgium
| | | | | | - Mikhail S Novikov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg199034, Russia
| | | | - Aleksey A Gagarin
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia
| | | | - Nibin Joy Muthipeedika
- Innovation Center for Chemical and Pharmaceutical Technologies, Institute of Chemical Technology, Ural Federal University, Yekaterinburg620002, Russia
| | - Vasiliy A Bakulev
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, B-3001Leuven, Belgium
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5
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Dong C, Mai S, Wang S, Li X, Song Q. Base-promoted anaerobic intramolecular cyclization synthesis of 4,5-disubstituted-1,2,3-thiadiazoles. Org Chem Front 2022. [DOI: 10.1039/d2qo00351a] [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
An alkali-promoted, transition-metal-free and oxidant-free method to construct 4,5-disubstituted-1,2,3-thiadiazoles from N-tosylhydrazone-bearing thiocarbamates by employing a sustainable intramolecular reaction strategy has been developed.
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Affiliation(s)
- Cong Dong
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
| | - Shuai Wang
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
| | - Xin Li
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
- State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
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6
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Zhao Y, Zhou Z, Chen M, Yang W. Copper-Catalyzed One-Pot Synthesis of N-Sulfonyl Amidines from Sulfonyl Hydrazine, Terminal Alkynes and Sulfonyl Azides. Molecules 2021; 26:3700. [PMID: 34204392 PMCID: PMC8235413 DOI: 10.3390/molecules26123700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022] Open
Abstract
N-Sulfonyl amidines are developed from a Cu-catalyzed three-component reaction from sulfonyl hydrazines, terminal alkynes and sulfonyl azides in toluene at room temperature. Particularly, the intermediate N-sulfonylketenimines was generated via a CuAAC/ring-opening procedure and took a nucleophilic addition with the weak nucleophile sulfonyl hydrazines. In addition, the stability of the product was tested by a HNMR spectrometer.
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Affiliation(s)
| | | | | | - Weiguang Yang
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (Y.Z.); (Z.Z.); (M.C.)
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7
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Pali P, Shukla G, Saha P, Singh MS. Photo-oxidative Ruthenium(II)-Catalyzed Formal [3 + 2] Heterocyclization of Thioamides to Thiadiazoles. Org Lett 2021; 23:3809-3813. [PMID: 33956460 DOI: 10.1021/acs.orglett.1c00766] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An operationally simple and sustainable one-pot photo-oxidative formal [3 + 2] heterocyclization of β-ketothioamides with aryldiazonium salts catalyzed by Ru(bpy)3Cl2 has been realized to provide 2,4-disubstituted 5-imino-1,2,3-thiadiazoles in good to high yields under mild reaction conditions for the first time. The reaction proceeded via an α-phenylhydrazone adduct of thioamides leading to 1,2,3-thiadiazoles via N-S bond formation at room temperature. Notably, the products possess Z-stereochemistry with regard to the exocyclic C═N double bond at the 5-position of the ring.
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Affiliation(s)
- Pragya Pali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Priya Saha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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8
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Opsomer T, Dehaen W. Metal-free syntheses of N-functionalized and NH-1,2,3-triazoles: an update on recent developments. Chem Commun (Camb) 2021; 57:1568-1590. [PMID: 33491711 DOI: 10.1039/d0cc06654k] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An overview of the latest developments in the metal-free synthesis of non-benzo-fused N-functionalized and NH-1,2,3-triazoles is provided in this feature article. Synthetic studies that appeared from 2016 until August 2020 are organized according to a wide-ranging classification, comprising oxidative and eliminative azide-dipolarophile cycloadditions, diazo transfer reactions and N-tosylhydrazone-mediated syntheses. The newly developed methods constitute a significant contribution to the field of 1,2,3-triazole synthesis in terms of structural variation via either the exploration of novel reactions, or the exploitation of existing methodologies.
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Affiliation(s)
- Tomas Opsomer
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium.
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9
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Ilkin V, Berseneva V, Beryozkina T, Glukhareva T, Dianova L, Dehaen W, Seliverstova E, Bakulev V. Regioselective synthesis of heterocyclic N-sulfonyl amidines from heteroaromatic thioamides and sulfonyl azides. Beilstein J Org Chem 2020; 16:2937-2947. [PMID: 33335601 PMCID: PMC7722631 DOI: 10.3762/bjoc.16.243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/19/2020] [Indexed: 11/23/2022] Open
Abstract
N-Sulfonyl amidines bearing 1,2,3-triazole, isoxazole, thiazole and pyridine substituents were successfully prepared for the first time by reactions of primary, secondary and tertiary heterocyclic thioamides with alkyl- and arylsulfonyl azides. For each type of thioamides a reliable procedure to prepare N-sulfonyl amidines in good yields was found. Reactions of 1-aryl-1,2,3-triazole-4-carbothioamides with azides were shown to be accompanied with a Dimroth rearrangement to form 1-unsubstituted 5-arylamino-1,2,3-triazole-4-N-sulfonylcarbimidamides. 2,5-Dithiocarbamoylpyridine reacts with sulfonyl azides to form a pyridine bearing two sulfonyl amidine groups.
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Affiliation(s)
- Vladimir Ilkin
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Vera Berseneva
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Tetyana Beryozkina
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Tatiana Glukhareva
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Lidia Dianova
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Eugenia Seliverstova
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Vasiliy Bakulev
- TOS Department, Ural Federal University named after the first President of Russia B.N. Yeltsin, 19 Mira St., 620002 Yekaterinburg, Russia
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10
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Silaichev PS, Beryozkina TV, Novikov MS, Dehaen W, Bakulev VA. A Base‐Controlled Reaction of 2‐Cyanoacetamidines (3,3‐Diaminoacrylonitriles) with Sulfonyl Azides as a Route to Nonaromatic 4‐Methylene‐1,2,3‐triazole‐5‐imines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Pavel S. Silaichev
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira st. 620002 Yekaterinburg Russia
- Department of Chemistry Perm State University 15 Bukireva st. 614990 Perm Russia
| | - Tetyana V. Beryozkina
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira st. 620002 Yekaterinburg Russia
| | - Mikhail S. Novikov
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya nab. 199034 St. Petersburg Russia
| | - Wim Dehaen
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Vasiliy A. Bakulev
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira st. 620002 Yekaterinburg Russia
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11
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β-(Cycloalkylamino)ethanesulfonyl azides as novel water-soluble reagents for the synthesis of diazo compounds and heterocycles. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02609-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Filimonov VO, Dianova LN, Beryozkina TV, Mazur D, Beliaev NA, Volkova NN, Ilkin VG, Dehaen W, Lebedev AT, Bakulev VA. Water/Alkali-Catalyzed Reactions of Azides with 2-Cyanothioacetamides. Eco-Friendly Synthesis of Monocyclic and Bicyclic 1,2,3-Thiadiazole-4-carbimidamides and 5-Amino-1,2,3-triazole-4-carbothioamides. J Org Chem 2019; 84:13430-13446. [PMID: 31547663 DOI: 10.1021/acs.joc.9b01599] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The reactions of thioamides with azides in water were studied. It was reliably shown that the reaction of 2-cyanothioacetamides 1 with various types of azides 2 in water in the presence of alkali presents an efficient, general, one-step, atom-economic, and eco-friendly method for the synthesis of 1,2,3-thiadiazol-4-carbimidamides 5 and 1,2,3-triazole-4-carbothioamides 4. This method can be extended to the one-pot reaction of sulfonyl chlorides and 6-chloropyrimidines 2'o with sodium azide, leading to final products in higher yields, that is, avoiding the isolation of unsafe sulfonyl azides. The method was furthermore applied to the reaction of N,N'-bis-(2-cyanothiocarbonyl)pyrazine 1h with sulfonyl azides to afford bicyclic 1,2,3-thiadiazoles 8 and 1,2,3-triazoles 9 connected via a 1,1'-piperazinyl linker. 2-Cyanothioacetamides 1 were also shown to react with aromatic azides in water in the presence of alkali to afford 1-aryl-5-amino-1,2,3-triazole-4-carbothioamides 11. In contrast to aromatic azides and similarly to sulfonyl azides, 6-azidopyrimidine-2,4-diones 2o-q react with cyanothioacetamides to form N-pyrimidin-6-yl-5-dialkylamino-1,2,3-thiadiazole-4-N-l-carbimidamides 12. A mechanism was proposed to rationalize the role of water in changing the reactivity of azides toward 2-cyanothioacetamides.
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Affiliation(s)
| | - Lidia N Dianova
- Ural Federal University , 19 Mira St. , Yekaterinburg 620002 , Russia
| | | | - Dmitrii Mazur
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - Nikolai A Beliaev
- Ural Federal University , 19 Mira St. , Yekaterinburg 620002 , Russia
| | - Natalia N Volkova
- Ural Federal University , 19 Mira St. , Yekaterinburg 620002 , Russia
| | - Vladimir G Ilkin
- Ural Federal University , 19 Mira St. , Yekaterinburg 620002 , Russia
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry , KU Leuven , Celestijnenlaan 200F , Leuven B-3001 , Belgium
| | - Albert T Lebedev
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - Vasiliy A Bakulev
- Ural Federal University , 19 Mira St. , Yekaterinburg 620002 , Russia
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13
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Wang C, Geng X, Zhao P, Zhou Y, Wu YD, Cui YF, Wu AX. I 2/CuCl 2-promoted one-pot three-component synthesis of aliphatic or aromatic substituted 1,2,3-thiadiazoles. Chem Commun (Camb) 2019; 55:8134-8137. [PMID: 31240291 DOI: 10.1039/c9cc04254g] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient I2/CuCl2-promoted one-pot three-component strategy for the construction of 1,2,3-thiadiazoles from aliphatic- or aromatic-substituted methyl ketones, p-toluenesulfonyl hydrazide, and potassium thiocyanate has been developed. Simple and commercially available starting materials, a broad substrate scope, and excellent functional group tolerability make this strategy practical for applications. Furthermore, 1,2,3-thiadiazole synthesis was realized by using potassium thiocyanate as an odorless sulfur source.
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Affiliation(s)
- Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Yan-Fang Cui
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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14
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Mo S, Teng Q, Pan Y, Tang H. Metal‐ and Oxidant‐free Electrosynthesis of 1,2,3‐Thiadiazoles from Element Sulfur and N‐tosyl Hydrazones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801700] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shi‐Kun Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences ofGuangxi Normal University Guilin 541004 People's Republic of China
| | - Qing‐Hu Teng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences ofGuangxi Normal University Guilin 541004 People's Republic of China
- School of Chemistry and Chemical EngineeringBeijing Institute of Technology 6 LiangxiangEast Street Beijing 100081 People's Republic of China
| | - Ying‐Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences ofGuangxi Normal University Guilin 541004 People's Republic of China
| | - Hai‐Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences ofGuangxi Normal University Guilin 541004 People's Republic of China
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15
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Progress in intermolecular and intramolecular reactions of thioamides with diazo compounds and azides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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An efficient method for the synthesis of 2-thiazoleacetic acid N-sulfonyl amidines. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02407-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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18
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Dyachenko VD, Dyachenko IV, Nenajdenko VG. Cyanothioacetamide: a polyfunctional reagent with broad synthetic utility. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4760] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Liu Y, Yang J, Ma X, Han C, Jiang Y. Metal-Free Synthesis of Etherified 3-(1H-1,2,3-Triazol-1-yl)phenyl Iodides through O-H Arylation/C-H Iodination with Diacetoxyiodobenzenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaowen Liu
- Faculty of Science; Kunming University of Science and Technology; Jingming South Road 727 650500 Kunming China
| | - Jianhua Yang
- Faculty of Science; Kunming University of Science and Technology; Jingming South Road 727 650500 Kunming China
| | - Xinyuan Ma
- Faculty of Science; Kunming University of Science and Technology; Jingming South Road 727 650500 Kunming China
| | - Chunmei Han
- Faculty of Science; Kunming University of Science and Technology; Jingming South Road 727 650500 Kunming China
| | - Yubo Jiang
- Faculty of Science; Kunming University of Science and Technology; Jingming South Road 727 650500 Kunming China
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20
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Identification and interconversion of isomeric 4,5-functionalized 1,2,3-thiadiazoles and 1,2,3-triazoles in conditions of electrospray ionization. J Pharm Biomed Anal 2017; 145:315-321. [DOI: 10.1016/j.jpba.2017.06.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/19/2017] [Accepted: 06/27/2017] [Indexed: 11/23/2022]
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