1
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Li X, Yuan X, Wu Y, Guo H, Liu Q, Huang S. Synthesis of 3,4,5-Trisubstituted 1,2,4-Triazoles via I 2-Catalyzed Cycloaddition of Amidines with Hydrazones. J Org Chem 2024; 89:5277-5286. [PMID: 38587487 DOI: 10.1021/acs.joc.3c02637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
A general and practical method for the construction of various 3,4,5-trisubstituted 1,2,4-triazoles via I2-catalyzed cycloaddition of N-functionalized amidines with hydrazones is reported. This strategy features cheap and readily available catalyst and starting materials, broader substrate scope, and moderate-to-good yields. The mechanism study shows that the existence of hydrogen on the nitrogen of hydrazones is crucial for this transformation.
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Affiliation(s)
- Xing Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Xinyufei Yuan
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Yuting Wu
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Honghong Guo
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Qiang Liu
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Shuangping Huang
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
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2
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Li JL, Li HY, Zhang SS, Shen S, Yang XL, Niu X. Photoredox/Cobalt-Catalyzed Cascade Oxidative Synthesis of 2,5-Disubstituted 1,3,4-Oxadiazoles under Oxidant-Free Conditions. J Org Chem 2023; 88:14874-14886. [PMID: 37862710 DOI: 10.1021/acs.joc.3c01078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
An efficient oxidant-free, photoredox-mediated cascade cyclization strategy for the synthesis of 1,3,4-oxadiazoles by using an organo acridinium photocatalyst and a cobaloxime catalyst has been developed. Various acylhydrazones have been transformed into the corresponding 1,3,4-oxadiazole products in up to 96% yield, and H2 is the only byproduct. Mechanistic experiments and density functional theory (DFT) calculation studies indicate carbon-centered radicals rather than oxygen-centered radicals as π-radicals produced by the oxidation of photoexcited Mes-Acr+* along with deprotonation, which is responsible for this transformation. The practical utility of this method is highlighted by the one-pot gram-scale synthesis starting directly from commercially available aldehydes and acylhydrazides.
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Affiliation(s)
- Jun-Li Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Hao-Yuan Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Shan-Shan Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiu-Long Yang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiaoying Niu
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
- Postdoctoral Research Station of Chemistry Affiliated College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
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3
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Matheau-Raven D, Dixon DJ. A One-Pot Synthesis-Functionalization Strategy for Streamlined Access to 2,5-Disubstituted 1,3,4-Oxadiazoles from Carboxylic Acids. J Org Chem 2022; 87:12498-12505. [PMID: 36054913 PMCID: PMC9486941 DOI: 10.1021/acs.joc.2c01669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A one-pot 1,3,4-oxadiazole synthesis-arylation strategy
for accessing
2,5-disubstituted 1,3,4-oxadiazoles, from carboxylic acids, N-isocyaniminotriphenylphosphorane (NIITP), and aryl iodides,
is reported. The reaction sequence, featuring a second stage copper-catalyzed
1,3,4-oxadiazole arylation, was found to tolerate (hetero)aryl, alkyl,
and alkenyl carboxylic acids, and (hetero)aryl iodide coupling partners.
The effectiveness of the two-stage strategy was exemplified by the
late-stage functionalization of five carboxylic acid-containing APIs,
and an extension to the synthesis of aminated 1,3,4-oxadiazoles using N-benzoyloxy amine coupling partners was also demonstrated.
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Affiliation(s)
- Daniel Matheau-Raven
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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4
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Lekkala C, Bodala V, Yettula K, Karasala BK, Podugu RL, Vidavalur S. Copper-Catalyzed One-Pot Synthesis of 2,5-Disubstituted 1,3,4-Oxadiazoles from Arylacetic Acids and Hydrazides via Dual Oxidation. ACS OMEGA 2022; 7:27157-27163. [PMID: 35967030 PMCID: PMC9366783 DOI: 10.1021/acsomega.2c01586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
A simple and efficient protocol has been developed to access symmetrical and unsymmetrical 2,5-disubstituted 1,3,4-oxadiazoles from arylacetic acids and hydrazides via copper-catalyzed dual oxidation under an oxygen atmosphere. Oxidative decarboxylation of arylacetic acids and oxidative functionalization of the imine C-H bond are the key steps. This is the first example of the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles through dual oxidation in one-pot. Avoidance of the expensive ligand and high yield of the products are advantageous features of the developed method.
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5
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Sharma D, Om H, Sharma AK. Potential Synthetic Routes and Metal-Ion Sensing Applications of 1,3,4-Oxadiazoles: An Integrative Review. Crit Rev Anal Chem 2022; 54:416-436. [PMID: 35617470 DOI: 10.1080/10408347.2022.2080494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Oxadiazoles, especially 1,3,4-oxadiazole scaffolds, stand among the foremost heterocyclic fragments with a broad spectrum of applications in diverse fields, including pharmacology, polymers, material science, and organic electronics, among others. In this comprehensive review, we summarize the pivotal synthetic strategies for 1,3,4-oxadiazole derivatives including dehydrogenative cyclization of 1,2-diacylhydrazines, oxidative cyclization of acylhydrazones, condensation cyclization, C-H activation of oxadiazole ring, decarboxylative cyclization and oxidative annulation along with plausible mechanisms. The set of 1,3,4-oxadiazoles selected from the literature and discussed herein epitomize the ease of synthesis as well as the possibility of linking π-conjugated groups; thereby encouraging the use of these molecules as important starting building blocks for a wide variety of fluorescent frameworks, particularly in the development of potential chemosensors. High photoluminescent quantum yield, excellent thermal and chemical stability, and the presence of potential coordination (N and O donor atoms) sites make these molecules a prominent choice for metal-ions sensors. An overview of selective metal-ion sensing, the detection limit along with the sensing mechanisms (photo-induced electron transfer, excited-state intramolecular proton transfer, and complex formation) is also included.
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Affiliation(s)
- Deepak Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
| | - Hari Om
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
| | - Ashok Kumar Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
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6
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Liu L, Durai M, Doucet H. Transition Metal‐Catalyzed Regiodivergent C−H Arylations of Aryl‐Substituted Azoles. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Linhao Liu
- CNRS ISCR-UMR 6226 Univ Rennes 35000 Rennes France
| | | | - Henri Doucet
- CNRS ISCR-UMR 6226 Univ Rennes 35000 Rennes France
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7
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Maj A, Kudelko A, Świątkowski M. Novel Conjugated s-Tetrazine Derivatives Bearing a 4 H-1,2,4-Triazole Scaffold: Synthesis and Luminescent Properties. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020459. [PMID: 35056774 PMCID: PMC8779062 DOI: 10.3390/molecules27020459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/17/2022]
Abstract
A series of new symmetrical s-tetrazine derivatives, coupled via a 1,4-phenylene linkage with a 4H-1,2,4-triazole ring, were obtained. The combination of these two rings in an extensively coupled system has significant potential applications, mainly in optoelectronics. The methodology used turned out to be useful regardless of the type of five-membered ring or the nature of the individual substituents. All the products were identified by spectroscopic methods, and the target compounds were tested for luminescent properties. This study showed that all the synthesized highly-conjugated triazoles exhibited luminescence; in particular, one derivative, 3,6-bis(4-(5-(4-methoxyphenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)phenyl)-1,2,4,5-tetrazine (13b), showed strong fluorescence emission and ahigh quantum yield close to 1.
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Affiliation(s)
- Anna Maj
- Department of Chemical Organic Technology and Petrochemistry, The Silesian University of Technology, Krzywoustego 4, PL-44100 Gliwice, Poland;
| | - Agnieszka Kudelko
- Department of Chemical Organic Technology and Petrochemistry, The Silesian University of Technology, Krzywoustego 4, PL-44100 Gliwice, Poland;
- Correspondence: ; Tel.: +48-32-237-17-29
| | - Marcin Świątkowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, PL-90924 Lodz, Poland;
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8
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Leng Y, Wu Y, Zhang S, Liu C, Wu X, Li W, Li H, Wang S. Synthesis of 1,3,4-Oxadiazoles by Iodine-Mediated Oxidative Cyclization of Methyl Ketones with 4-Phenylsemicarbazide. Synlett 2021. [DOI: 10.1055/a-1707-0965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractAn efficient one-pot method has been developed to access 5-amino-2-(het)aroyl-1,3,4-oxadiazoles through I2/DMSO-promoted oxidative cyclization of 4-phenylsemicarbazide with (het)aryl methyl ketones under mild conditions. This reaction proceeds smoothly with a wide range of methyl ketones containing various functional groups to give the corresponding products in moderate yields under mild conditions.
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Affiliation(s)
- Yuting Leng
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Yangjie Wu
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Shanshan Zhang
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Chuang Liu
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Xiaojun Wu
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Wen Li
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - He Li
- Green Catalysis Center, and College of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Zhengzhou University
| | - Shiwei Wang
- School of Mechanics and Engineering Science, Zhengzhou University
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9
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Li X, Liao S, Chen Y, Xia C, Wang G. Cobalt(II) nitrate promoted cyclization of benzoyl hydrazone for the synthesis of 2,5-diphenyl-1,3,4-oxadiazole derivatives. JOURNAL OF CHEMICAL RESEARCH 2021. [DOI: 10.1177/17475198211045932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A Co(NO3)2 method to promote cyclization of benzoyl hydrazone for the formation of 2,5-diphenyl-1,3,4-oxadiazoles has been developed. The reaction proceeded smoothly and was promoted by Co(NO3)2 under air at 110 °C in DCE; 16 examples of products were obtained.
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Affiliation(s)
| | | | - Yu Chen
- Shandong Polytechnic College, Jining, P.R. China
| | - Chengcai Xia
- Pharmacy College, Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an, P.R. China
| | - Guodong Wang
- Pharmacy College, Institute of Pharmacology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an, P.R. China
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10
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Alavinia S, Ghorbani-Vaghei R. The preparation, characterization and catalytic activity of Ni NPs supported on porous alginate- g-poly( p-styrene sulfonamide- co-acrylamide). RSC Adv 2021; 11:29728-29740. [PMID: 35479525 PMCID: PMC9040858 DOI: 10.1039/d1ra04022g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
Herein, we report the synthesis of nickel nanoparticles under mild conditions using porous alginate-g-poly(p-styrene sulfonamide-co-acrylamide) as a protecting/stabilizing agent and sodium borohydride as a reducing agent. The porous cross-linked polymeric support was prepared via combining the use of sol–gel, nanocasting, and crosslinking techniques, in which the p-styrene sulfonamide monomer (PSSA) and N,N′-methylene-bis (acrylamide) (MBA) cross-linker underwent copolymerization on the surface of sodium alginate in the presence of a SiO2 nanoparticle (NP) template (Alg–PSSA-co-ACA). The prepared catalyst (Alg–PSSA-co-ACA@Ni) showed high catalytic activity for the one-step synthesis of 1,3,4-oxadiazoles from the reaction of hydrazides and aryl iodides through isocyanide insertion/cyclization. Ni NPs supported on novel porous alginate-g-poly(p-styrene sulfonamide-co-acrylamide) was investigated for the synthesis of 1,3,4-oxadiazoles.![]()
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Affiliation(s)
- Sedigheh Alavinia
- Department of Chemistry, Bu-Ali Sina University 65174 Hamedan Iran +98 81 38380647
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11
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Wołek B, Werłos M, Komander M, Kudelko A. Efficient Synthesis of Novel 1,3,4-Oxadiazoles Bearing a 4-N,N-Dimethylaminoquinazoline Scaffold via Palladium-Catalyzed Suzuki Cross-Coupling Reactions. Molecules 2020; 25:molecules25215150. [PMID: 33167437 PMCID: PMC7663961 DOI: 10.3390/molecules25215150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/01/2020] [Accepted: 11/02/2020] [Indexed: 11/16/2022] Open
Abstract
Two series of novel (symmetrical and unsymmetrical) quinazolinylphenyl-1,3,4-oxadiazole derivatives were synthesized using palladium-catalyzed Suzuki cross-coupling reactions. The presented synthetic methodology is based on the use of bromine-substituted 2-phenyl-4-N,N-dimethylaminoquinazolines and either a boronic acid pinacol ester or a diboronic acid bis(pinacol) ester of 2,5-diphenyl-1,3,4-oxadiazole. The reactions are conducted in a two-phase solvent system in the presence of catalytic amounts of [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium(II), sodium carbonate, and tetrabutylammonium bromide, which plays the role of a phase-transfer catalyst. The luminescence properties of the obtained compounds are discussed in the context of applying these compounds in optoelectronics. Specifically, two highly-conjugated final products: N,N-dimethyl-2-phenyl-6-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)quinazolin-4-amine (8f) and 6,6′-(4,4′-(1,3,4-oxadiazole-2,5-diyl)bis(4,1-phenylene))bis(N,N-dimethylquinazolin-4-amine (9f), which contain a 1,3,4-oxadiazole moiety connected to a quinazoline ring by a 1,4-phenylene linker at the 6 position, exhibit strong fluorescence emission and high quantum yields.
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Affiliation(s)
- Barbara Wołek
- Selvita Services Sp. Z o.o., Bobrzyńskiego 14, 30348 Kraków, Poland; (B.W.); (M.W.); (M.K.)
| | - Mateusz Werłos
- Selvita Services Sp. Z o.o., Bobrzyńskiego 14, 30348 Kraków, Poland; (B.W.); (M.W.); (M.K.)
| | - Magdalena Komander
- Selvita Services Sp. Z o.o., Bobrzyńskiego 14, 30348 Kraków, Poland; (B.W.); (M.W.); (M.K.)
| | - Agnieszka Kudelko
- Department of Chemical Organic Technology and Petrochemistry, The Silesian University of Technology, Krzywoustego 4, 44100 Gliwice, Poland
- Correspondence: ; Tel.: +48-32-237-17-29
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12
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Baek J, Je EK, Kim J, Qi A, Ahn KH, Kim Y. Experimental and Theoretical Studies on the Mechanism of DDQ-Mediated Oxidative Cyclization of N-Aroylhydrazones. J Org Chem 2020; 85:9727-9736. [PMID: 32614179 DOI: 10.1021/acs.joc.0c00937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The controversial single-electron-transfer process, frequently proposed in many 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-mediated reactions, was investigated experimentally and theoretically using the oxidative cyclization of aroylhydrazone with DDQ. DDQ-mediated oxadiazole formation involves several processes, including cyclization to form an oxadiazole ring and N-H bond cleavage, either by proton, hydride, or hydrogen atom transfer. The detailed mechanistic study using the M06-2X density functional theory, and the 6-31+G(d,p) basis set, suggests that the pathways involving radical ion pair (RIP) intermediates, which resulted from single-electron transfer (SET), were found to be energetically nearly identical to the pathway without the SET. The substituent-dependent reactivity of oxadiazole formation was consistent with the free energy profiles of both pathways, with or without the SET. This result indicates that in addition to the electron-transfer pathway, the nucleophilic addition/elimination pathway for DDQ should be considered as a possible mechanism of the oxidative transformation reaction using DDQ.
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Affiliation(s)
- Jihye Baek
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
| | - Eun-Kyung Je
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
| | - Jina Kim
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
| | - Ai Qi
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
| | - Kwang-Hyun Ahn
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
| | - Yongho Kim
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 446-701, Korea
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13
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Pankow RM, Thompson BC. Approaches for improving the sustainability of conjugated polymer synthesis using direct arylation polymerization (DArP). Polym Chem 2020. [DOI: 10.1039/c9py01534e] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Emerging strategies to enhance the sustainability of Direct Arylation Polymerization (DArP) are discussed, illustrating the great potential of this method.
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Affiliation(s)
- Robert M. Pankow
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
| | - Barry C. Thompson
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
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14
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Wang Q, Mgimpatsang KC, Konstantinidou M, Shishkina SV, Dömling A. 1,3,4-Oxadiazoles by Ugi-Tetrazole and Huisgen Reaction. Org Lett 2019; 21:7320-7323. [PMID: 31478379 PMCID: PMC6759755 DOI: 10.1021/acs.orglett.9b02614] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
Easy
to perform, functional group tolerant, and short syntheses
of the privileged scaffold oxadiazole are highly desired. Here, a
metal-free protocol for MCR-based synthesis of 2,5-disubstituted 1,3,4-oxadiazoles
via a Ugi-tetrazole/Huisgen sequence was developed. Optimization and
scope and limitations of this short and general sequence are described.
The reaction was also successfully performed on a gram scale.
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Affiliation(s)
- Qian Wang
- University of Groningen , Department of Drug Design , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Kumchok C Mgimpatsang
- University of Groningen , Department of Drug Design , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Markella Konstantinidou
- University of Groningen , Department of Drug Design , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Svitlana V Shishkina
- SSI "Institute for Single Crystals" , National Academy of Science of Ukraine , 60 Lenina Avenue , Kharkiv 61001 , Ukraine
| | - Alexander Dömling
- University of Groningen , Department of Drug Design , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
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15
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Wang S, Wang K, Kong X, Zhang S, Jiang G, Ji F. DMF as Methine Source: Copper‐Catalyzed Direct Annulation of Hydrazides to 1,3,4‐Oxadiazoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900395] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
| | - Kai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
| | - Xiangfei Kong
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
| | - Shuhua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 People's Republic of China
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16
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Chandrasekar S, Sangeetha S, Sekar G. Synthesis of 1,3‐Disubstituted Imidazo[1,5‐
a
]pyridines through Oxidative C‐N Bond Formation from Aryl‐2‐pyridylmethanols and Their Fluorescent Study. ChemistrySelect 2019. [DOI: 10.1002/slct.201901440] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Selvaraj Chandrasekar
- Department of ChemistryIndian Institute of Technology Madras Chennai-600036, Tamil Nadu India
| | - Subramani Sangeetha
- Department of ChemistryIndian Institute of Technology Madras Chennai-600036, Tamil Nadu India
| | - Govindasamy Sekar
- Department of ChemistryIndian Institute of Technology Madras Chennai-600036, Tamil Nadu India
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17
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Bhujabal YB, Vadagaonkar KS, Kapdi AR. Pd/PTABS: Catalyst for Efficient C−H (Hetero)Arylation of 1,3,4-Oxadiazoles Using Bromo(Hetero)Arenes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800713] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuvraj B. Bhujabal
- Department of Chemistry; Institute of Chemical Technology Matunga; Mumbai- 400019 India
| | | | - Anant R. Kapdi
- Department of Chemistry; Institute of Chemical Technology Matunga; Mumbai- 400019 India
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18
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Zhao WQ, Qian K, Su CW, Shao L, Zhou W, Cui DM, Zhang C, Wang XL. Copper-catalyzed synthesis of pyrazolo[5,1-a]isoquinoline derivatives from 2-gem-dipyrazolylvinylbromobenzenes. NEW J CHEM 2019. [DOI: 10.1039/c9nj01882d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient copper-catalyzed synthesis of pyrazolo[5,1-a]isoquinolines from 2-gem-dipyrazolylvinylbromobenzenes under mild conditions has been developed.
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Affiliation(s)
- Wan Qiu Zhao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Kun Qian
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Cheng Wu Su
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Lei Shao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Wei Zhou
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Dong-Mei Cui
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Chen Zhang
- School of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Xiu-Li Wang
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541006
- China
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19
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Singh D, Tiwari SK, Singh V. A transition metal-free approach towards synthesis of β-carboline tethered 1,3,4-oxadiazoles via oxidative C–O bond formation. NEW J CHEM 2019. [DOI: 10.1039/c8nj04294b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient protocol has been developed for one-pot synthesis of biologically interesting β-carboline substituted 1,3,4-oxadiazoles via an I2-assisted oxidative C–O bond formation strategy.
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Affiliation(s)
- Dharmender Singh
- Department of Chemistry
- Dr B R Ambedkar National Institute of Technology (NIT)
- Jalandhar
- India
| | - Sandip Kumar Tiwari
- Drug Discovery and Molecular Synthesis Lab
- Centre of Biomedical Research
- SGPGIMS
- Lucknow- 226014
- India
| | - Virender Singh
- Department of Chemistry
- Dr B R Ambedkar National Institute of Technology (NIT)
- Jalandhar
- India
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20
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Santoro S, Ferlin F, Ackermann L, Vaccaro L. C-H functionalization reactions under flow conditions. Chem Soc Rev 2019; 48:2767-2782. [PMID: 30942788 DOI: 10.1039/c8cs00211h] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
C-H functionalization technologies have progressed enormously in the last decade as testified by the great number of publications that have appeared in the literature, which are receiving great attention from researchers from different areas of expertise. While most of the protocols reported realize the C-H functionalization processes under batch conditions, there is a growing interest in the development of continuous-flow procedures aiming at increasing the performances of established methodologies or the definition of otherwise unfeasible transformations. This review summarizes the application of flow technologies for the realization of C-H functionalization reactions. According to the type of flow reactors necessary, two main general approaches are possible for the application of flow techniques, namely the use of homogeneous or heterogeneous conditions. Each example is discussed and accompanied by the description of the main features and benefits of the use of flow compared to batch conditions.
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Affiliation(s)
- Stefano Santoro
- Laboratory of Green S.O.C., Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Via Elce di Sotto, 8 - 06123 Perugia, Italy.
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21
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1415] [Impact Index Per Article: 235.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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22
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Copper-Catalyzed Synthesis, Bio-Evaluation, and in Silico Studies of 2-Aryl-N-alkylbenzimidazoles as Neuroprotective Agents. Catalysts 2018. [DOI: 10.3390/catal8100433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
2-aryl-N-alkylbenzimidazole derivatives synthesized by CuI/PPh3 promoted direct coupling of N-alkylbenzimidazoles with aryl bromides. In vitro neurotoxicities of 20 compounds were evaluated, and the neuroprotective abilities of low-neurotoxic compounds (3b, 3g, 3h, 3i, 3j, 3k, 3o, 3q, 3s and 3t) were investigated against toxicity induced by 1-methyl-4-phenylpyridinium ion (MPP+) in SH-SY5Y neuronal cells. In silico studies revealed that compound 3g could have molecule docking with the following proteins: the bone morphogenetic protein receptor type 1B (BMPR1B), human cytochrome P450 1B1(CYP1B1), Metabotropic glutamate receptor 7 (GRM7), histone deacetylase 6 (HDAC6), 5-hydroxytryptamine receptor 5A (HTR5A), human topoisomerase II beta (TOP2B). A molecular docking simulation of model compound 3g and model protein CYP1B1 has been shown.
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23
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Angapelly S, Ramya PVS, Sodhi R, Angeli A, Rangan K, Nagesh N, Supuran CT, Arifuddin M. Iodine-mediated one-pot intramolecular decarboxylation domino reaction for accessing functionalised 2-(1,3,4-oxadiazol-2-yl)anilines with carbonic anhydrase inhibitory action. J Enzyme Inhib Med Chem 2018. [PMID: 29536768 PMCID: PMC6010027 DOI: 10.1080/14756366.2018.1443447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A practical and transition metal-free one-pot domino synthesis of diversified (1,3,4-oxadiazol-2-yl)anilines has been developed employing isatins and hydrazides as the starting materials, in the presence of molecular iodine. The prominent feature of this domino process involves consecutive condensation, hydrolytic ring cleavage, and an intramolecular decarboxylation, in a one-pot process that leads to the oxidative formation of a C–O bond. Fluorescence properties of some of the representative molecules obtained in this way were studied. The synthesised 2-(1,3,4-oxadiazolo-2-yl)aniline-benzene sulphonamides (8a–o) were screened for their carbonic anhydrase (CA, EC 4.2.1.1) inhibitory activity. Most of the compounds exhibited low micromolar to nanomolar activity against human (h) isoforms hCA I, hCA II, hCA IV, and XII, with some compounds displaying selective CA inhibitory activity towards hCA II with KIs of 6.4–17.6 nM.
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Affiliation(s)
- Srinivas Angapelly
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - P V Sri Ramya
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - Rohini Sodhi
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - Andrea Angeli
- b Neurofarba Department , Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence , Florence , Italy
| | - Krishnan Rangan
- c Birla Institute of Technology & Science, Pilani , Hyderabad , India
| | - Narayana Nagesh
- d Center for Cellular and Molecular Biology (CCMB) , Hyderabad , India
| | - Claudiu T Supuran
- b Neurofarba Department , Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence , Florence , Italy
| | - Mohammed Arifuddin
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
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24
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Wang L, Wang Y, Chen Q, He M. Photocatalyzed facile synthesis of 2,5-diaryl 1,3,4-oxadiazoles with polyaniline- g-C3N4-TiO2 composite under visible light. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Pankow RM, Ye L, Thompson BC. Copper catalyzed synthesis of conjugated copolymers using direct arylation polymerization. Polym Chem 2018. [DOI: 10.1039/c8py00913a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
As an effort to replace palladium catalysts, we report the first example of a Copper-catalyzed Direct Arylation Polymerization (DArP).
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Affiliation(s)
- Robert M. Pankow
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
| | - Liwei Ye
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
| | - Barry C. Thompson
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
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26
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Hu D, Liu M, Wu H, Gao W, Wu G. Copper-catalyzed diarylation of Se with aryl iodides and heterocycles. Org Chem Front 2018. [DOI: 10.1039/c8qo00066b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The site-selective copper-catalyzed three-component coupling reaction of electron-deficient heterocycles, Se powder and aryl iodides is disclosed, providing an efficient and practical pathway to access 2-arylselenated heterocycles.
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Affiliation(s)
- Dehua Hu
- School of Pharmaceutical Science
- Wenzhou Medical University
- Wenzhou 325035
- People's Republic of China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Huayue Wu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Ge Wu
- School of Pharmaceutical Science
- Wenzhou Medical University
- Wenzhou 325035
- People's Republic of China
- State Key Laboratory of Structural Chemistry
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27
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Zakeri M, Moghadam M, Mirkhani V, Tangestaninejad S, Mohammadpoor-Baltork I, Pahlevanneshan Z. Copper containing nanosilica thioalated dendritic material: A recyclable catalyst for synthesis of benzimidazoles and benzothiazoles. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3937] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maryam Zakeri
- Department of Chemistry, Catalysis Division; University of Isfahan; Isfahan 81746-73441 Iran
| | - Majid Moghadam
- Department of Chemistry, Catalysis Division; University of Isfahan; Isfahan 81746-73441 Iran
| | - Valiollah Mirkhani
- Department of Chemistry, Catalysis Division; University of Isfahan; Isfahan 81746-73441 Iran
| | - Shahram Tangestaninejad
- Department of Chemistry, Catalysis Division; University of Isfahan; Isfahan 81746-73441 Iran
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28
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Funt LD, Tomashenko OA, Mosiagin IP, Novikov MS, Khlebnikov AF. Synthesis of Pyrrolotriazoloisoquinoline Frameworks by Intramolecular Cu-Mediated or Free Radical Arylation of Triazoles. J Org Chem 2017; 82:7583-7594. [DOI: 10.1021/acs.joc.7b01341] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Liya D. Funt
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Olesya A. Tomashenko
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Ivan P. Mosiagin
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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29
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Copper-catalyzed Direct 2-Arylation of Benzoxazoles and Benzoimidazoles with Aryl Bromides and Cytotoxicity of Products. Sci Rep 2017; 7:43758. [PMID: 28256577 PMCID: PMC5335610 DOI: 10.1038/srep43758] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 01/26/2017] [Indexed: 01/25/2023] Open
Abstract
An efficient copper-catalyzed direct 2-arylation of benzoxazoles and benzoimidazoles with aryl bromides is presented. The CuI/PPh3-based catalyst promotes the installation of various aryl and heteroaryl groups through a C-H activation process in good to excellent yields. The cytotoxicity of obtained 2-aryl benzoxazoles (benzoimidazoles) was also evaluated and 1-methyl-2-(naphthalen-1-yl)benzoimidazole showed potential cytotoxicity.
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30
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31
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Li S, Wan P, Ai J, Sheng R, Hu Y, Hu Y. Palladium-Catalyzed, Silver-Assisted Direct C-5-H Arylation of 3-Substituted 1,2,4-Oxadiazoles under Microwave Irradiation. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600913] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shan Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Penghui Wan
- State Key Laboratory of Drug Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 ZuChongZhi Road Shanghai 201203 People's Republic of China
| | - Jing Ai
- Division of Anti-Tumor Pharmacology; State Key Laboratory of Drug Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 ZuChongZhi Road Shanghai 201203 People's Republic of China
| | - Rong Sheng
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Yongzhou Hu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Youhong Hu
- State Key Laboratory of Drug Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 ZuChongZhi Road Shanghai 201203 People's Republic of China
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32
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Gao P, Wang J, Bai Z, Cheng H, Xiao J, Lai M, Yang D, Fan M. One-pot cyclization/decarboxylation of α-keto acids and acylhydrazines for the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles under transition-metal-free conditions. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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33
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Wu Y, Zhao Y, Guo J, Lü H, Zheng N, Wang E. Synthesis and biological evaluation of amino alcohol containing 1,3,4-oxadiazole. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-6164-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Fan XY, Jiang X, Zhang Y, Chen ZB, Zhu YM. Palladium-catalyzed one-pot synthesis of diazoles via tert-butyl isocyanide insertion. Org Biomol Chem 2016; 13:10402-8. [PMID: 26328529 DOI: 10.1039/c5ob01328c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient one-pot palladium-catalyzed reaction for the synthesis of diazoles from readily available hydrazides and aryl halide via isocyanide insertion/cyclization sequence has been developed. This methodology efficiently constructs diazoles in good to excellent yields with the advantages of wide functional group tolerance and operational simplicity.
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Affiliation(s)
- Xiang-Yuan Fan
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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35
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Aurelio L, Scullino CV, Pitman MR, Sexton A, Oliver V, Davies L, Rebello RJ, Furic L, Creek DJ, Pitson SM, Flynn BL. From Sphingosine Kinase to Dihydroceramide Desaturase: A Structure-Activity Relationship (SAR) Study of the Enzyme Inhibitory and Anticancer Activity of 4-((4-(4-Chlorophenyl)thiazol-2-yl)amino)phenol (SKI-II). J Med Chem 2016; 59:965-84. [PMID: 26780304 DOI: 10.1021/acs.jmedchem.5b01439] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The sphingosine kinase (SK) inhibitor, SKI-II, has been employed extensively in biological investigations of the role of SK1 and SK2 in disease and has demonstrated impressive anticancer activity in vitro and in vivo. However, interpretations of results using this pharmacological agent are complicated by several factors: poor SK1/2 selectivity, additional activity as an inducer of SK1-degradation, and off-target effects, including its recently identified capacity to inhibit dihydroceramide desaturase-1 (Des1). In this study, we have delineated the structure-activity relationship (SAR) for these different targets and correlated them to that required for anticancer activity and determined that Des1 inhibition is primarily responsible for the antiproliferative effects of SKI-II and its analogues. In the course of these efforts, a series of novel SK1, SK2, and Des1 inhibitors have been generated, including compounds with significantly greater anticancer activity.
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Affiliation(s)
- Luigi Aurelio
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Carmen V Scullino
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Melissa R Pitman
- Centre for Cancer Biology, University of South Australia and SA Pathology , Frome Road, Adelaide South Australia 5000, Australia
| | - Anna Sexton
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Victoria Oliver
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Lorena Davies
- Centre for Cancer Biology, University of South Australia and SA Pathology , Frome Road, Adelaide South Australia 5000, Australia
| | - Richard J Rebello
- Cancer Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Clayton, Victoria 3800, Australia
| | - Luc Furic
- Cancer Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Clayton, Victoria 3800, Australia
| | - Darren J Creek
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Stuart M Pitson
- Centre for Cancer Biology, University of South Australia and SA Pathology , Frome Road, Adelaide South Australia 5000, Australia
| | - Bernard L Flynn
- Monash Institute of Pharmaceutical Science, Monash University , 381 Royal Parade, Parkville, Victoria 3052, Australia
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36
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Jamal Z, Teo YC. Regioselective copper-diamine-catalyzed C–H arylation of 1,2,4-triazole ring with aryl bromides. RSC Adv 2016. [DOI: 10.1039/c6ra14670h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A bench-top protocol using simple Cu-diamine catalysis for the regioselective C5–H arylation of 1,2,4-triazole ring with (hetero)aryl bromides.
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Affiliation(s)
- Zaini Jamal
- Natural Sciences and Science Education
- National Institute of Education
- Nanyang Technological University
- Singapore 637616
- Singapore
| | - Yong-Chua Teo
- Natural Sciences and Science Education
- National Institute of Education
- Nanyang Technological University
- Singapore 637616
- Singapore
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37
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Affiliation(s)
- Koji Hirano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Masahiro Miura
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
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38
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Wang L, Cao J, Chen Q, He M. One-Pot Synthesis of 2,5-Diaryl 1,3,4-Oxadiazoles via Di-tert-butyl Peroxide Promoted N-Acylation of Aryl Tetrazoles with Aldehydes. J Org Chem 2015; 80:4743-8. [DOI: 10.1021/acs.joc.5b00207] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Wang
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Jing Cao
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Qun Chen
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Mingyang He
- School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
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39
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Ma Y, Na M, Gu Y, Huang G, Li X, Chen Y. Direct arylation of imidazo[2,1-b]thiazoles and thiazoles with aryl iodides via CuCl2/PPh3-catalyzed C-H bond functionalization. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3263] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yuchang Ma
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
| | - Min Na
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
| | - Yanfang Gu
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
| | - Guoli Huang
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
| | - Xia Li
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
| | - Yegao Chen
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 China
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40
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Ligand-free copper(0) catalyzed direct C–H arylation of 1,2,4-triazoles and 1,3,4-oxadiazoles with aryl iodides in PEG-400. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Gu J, Cai C. Pd/Cu-cocatalyzed reigoselective arylation of thiazole derivatives at 2-position under ligand-free conditions. RSC Adv 2015. [DOI: 10.1039/c5ra08703a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient protocol for regioselective arylation of thiazole derivatives at the 2-position via palladium- and copper-catalyzed C–H bond activation under ligand-free conditions has been developed.
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Affiliation(s)
- Jian Gu
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing
- P. R. China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing
- P. R. China
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42
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Ray D, Manikandan T, Roy A, Tripathi KN, Singh RP. Ligand-promoted intramolecular dehydrogenative cross-coupling using a Cu catalyst: direct access to polycyclic heteroarenes. Chem Commun (Camb) 2015; 51:7065-8. [DOI: 10.1039/c5cc01817j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper(ii)-promoted intramolecular C–H coupling reaction between indole-2 and imidazole-2 moieties, which provides direct access to biheteroaryl incorporated polycyclic frameworks.
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Affiliation(s)
- Devalina Ray
- Department of Chemistry
- Indian Institute of Technology-Delhi
- Hauz Khas
- India
| | - T. Manikandan
- Division of Organic Chemistry
- National Chemical Laboratory
- Pune
- 411008 India
| | - Arup Roy
- Department of Chemistry
- Indian Institute of Technology-Delhi
- Hauz Khas
- India
| | | | - Ravi P. Singh
- Department of Chemistry
- Indian Institute of Technology-Delhi
- Hauz Khas
- India
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43
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Miura M, Satoh T, Hirano K. Development of Direct Aromatic Coupling Reactions by Transition-Metal Catalysis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20140099] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masahiro Miura
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Tetsuya Satoh
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Koji Hirano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
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44
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Kumar D, Pilania M, Arun V, Pooniya S. C–H arylation of azaheterocycles: a direct ligand-free and Cu-catalyzed approach using diaryliodonium salts. Org Biomol Chem 2014; 12:6340-4. [DOI: 10.1039/c4ob01061b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Recyclable CuO nanoparticles-catalyzed synthesis of novel-2,5-disubstituted 1,3,4-oxadiazoles as antiproliferative, antibacterial, and antifungal agents. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1025-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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47
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Miura M, Hirano K, Odani R, Nishino M, Satoh T. Copper-Mediated Regioselective Homocoupling of Thiophenes and Indoles via Directed C–H Cleavage. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)4] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Majji G, Rout SK, Guin S, Gogoi A, Patel BK. Iodine-catalysed oxidative cyclisation of acylhydrazones to 2,5-substituted 1,3,4-oxadiazoles. RSC Adv 2014. [DOI: 10.1039/c3ra44897e] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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49
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Yu W, Huang G, Zhang Y, Liu H, Dong L, Yu X, Li Y, Chang J. I2-mediated oxidative C-O bond formation for the synthesis of 1,3,4-oxadiazoles from aldehydes and hydrazides. J Org Chem 2013; 78:10337-43. [PMID: 24059837 DOI: 10.1021/jo401751h] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A practical and transition-metal-free oxidative cyclization of acylhydrazones into 1,3,4-oxadiazoles has been developed by employing stoichiometric molecular iodine in the presence of potassium carbonate. The conditions of this cyclization reaction also work well with crude acylhydrazone substrates obtained from the condensation of aldehydes and hydrazides. A series of symmetrical and asymmetrical 2,5-disubstituted (aryl, alkyl, and/or vinyl) 1,3,4-oxadiazoles can be conveniently generated in an efficient and scalable fashion.
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Affiliation(s)
- Wenquan Yu
- College of Chemistry and Molecular Engineering, Zhengzhou University , Zhengzhou, Henan Province 450001, China
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50
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Leung MK, Hsieh YH, Kuo TY, Chou PT, Lee JH, Chiu TL, Chen HJ. Novel Ambipolar Orthogonal Donor–Acceptor Host for Blue Organic Light Emitting Diodes. Org Lett 2013; 15:4694-7. [DOI: 10.1021/ol402001v] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Man-kit Leung
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Yu-Hsuan Hsieh
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Ting-Yi Kuo
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Pi-Tai Chou
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Jiun-Haw Lee
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Tien-Lung Chiu
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
| | - Hsin-Jen Chen
- Department of Chemistry, Institute of Polymer Science and Engineering, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 106, Taiwan, R.O.C., and Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan, R.O.C
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