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Abstract
Nitroxides, also known as nitroxyl radicals, are long-lived or stable radicals with the general structure R1R2N-O•. The spin distribution over the nitroxide N and O atoms contributes to the thermodynamic stability of these radicals. The presence of bulky N-substituents R1 and R2 prevents nitroxide radical dimerization, ensuring their kinetic stability. Despite their reactivity toward various transient C radicals, some nitroxides can be easily stored under air at room temperature. Furthermore, nitroxides can be oxidized to oxoammonium salts (R1R2N═O+) or reduced to anions (R1R2N-O-), enabling them to act as valuable oxidants or reductants depending on their oxidation state. Therefore, they exhibit interesting reactivity across all three oxidation states. Due to these fascinating properties, nitroxides find extensive applications in diverse fields such as biochemistry, medicinal chemistry, materials science, and organic synthesis. This review focuses on the versatile applications of nitroxides in organic synthesis. For their use in other important fields, we will refer to several review articles. The introductory part provides a brief overview of the history of nitroxide chemistry. Subsequently, the key methods for preparing nitroxides are discussed, followed by an examination of their structural diversity and physical properties. The main portion of this review is dedicated to oxidation reactions, wherein parent nitroxides or their corresponding oxoammonium salts serve as active species. It will be demonstrated that various functional groups (such as alcohols, amines, enolates, and alkanes among others) can be efficiently oxidized. These oxidations can be carried out using nitroxides as catalysts in combination with various stoichiometric terminal oxidants. By reducing nitroxides to their corresponding anions, they become effective reducing reagents with intriguing applications in organic synthesis. Nitroxides possess the ability to selectively react with transient radicals, making them useful for terminating radical cascade reactions by forming alkoxyamines. Depending on their structure, alkoxyamines exhibit weak C-O bonds, allowing for the thermal generation of C radicals through reversible C-O bond cleavage. Such thermally generated C radicals can participate in various radical transformations, as discussed toward the end of this review. Furthermore, the application of this strategy in natural product synthesis will be presented.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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2
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Rahimi J, Niksefat M, Heidari M, Naderi M, Abbasi H, Tajik Ijdani M, Maleki A. Ammonium metavanadate (NH 4VO 3): a highly efficient and eco-friendly catalyst for one-pot synthesis of pyridines and 1,4-dihydropyridines. Sci Rep 2022; 12:13687. [PMID: 35953520 PMCID: PMC9372032 DOI: 10.1038/s41598-022-17378-7] [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] [Received: 04/10/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
In this study, we reported the ammonium metavanadate (NH4VO3) as an efficient, cost-effective, and mild catalyst for the synthesis of substituted pyridines via a one-pot pseudo four-component reaction. Furthermore, we investigated Hantzsch 1,4-dihydropyridines (1,4-DHPs) synthesis and oxidation of 1,4-DHPs to their corresponding pyridines. The present approach offers a rapid methodology for accessing various pyridines with broad functional group tolerance and good yields using NH4VO3 catalyst as a green catalyst.
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Affiliation(s)
- Jamal Rahimi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Maryam Niksefat
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Marzieh Heidari
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA
| | - Mehdi Naderi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hadis Abbasi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Mohammad Tajik Ijdani
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.
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3
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Llopis S, Velty A, Díaz U. Active Base Hybrid Organosilica Materials based on Pyrrolidine Builder Units for Fine Chemicals Production. ChemCatChem 2021. [DOI: 10.1002/cctc.202101031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sebastián Llopis
- Instituto de Tecnología Química Universitat Politècnica de València Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n E-46022 Valencia Spain
| | - Alexandra Velty
- Instituto de Tecnología Química Universitat Politècnica de València Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n E-46022 Valencia Spain
| | - Urbano Díaz
- Instituto de Tecnología Química Universitat Politècnica de València Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n E-46022 Valencia Spain
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4
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Kolla ST, Somanaboina R, Bhimapaka CR. TBHP/Cu(OAc)2 mediated oxidation of pyrazolines: A convenient method for the preparation of pyrazoles. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1885716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Sai Teja Kolla
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ramya Somanaboina
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - China Raju Bhimapaka
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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5
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Aerobic oxidative aromatization of Hantzsch 1,4-dihydropyridines via an anomeric-based oxidation in the presence of Laccase enzyme/4-Phenyl urazole as a cooperative catalytic oxidation system. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01664-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Visible light mediated metal-free oxidative aromatization of 1,3,5-trisubstituted pyrazolines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Shariati M, Imanzadeh G, Rostami A, Ghoreishy N, Kheirjou S. Application of laccase/DDQ as a new bioinspired catalyst system for the aerobic oxidation of tetrahydroquinazolines and Hantzsch 1,4-dihydropyridines. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Li FQ, Zeng XM, Chen JM. Poly{[4-(hydroxy)(tosyloxy)iodo]styrene}-promoted aromatisation of Hantzsch 1,4-dihydropyridines. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x262454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hantzsch 1,4-dihydropyridines undergo smooth aromatisation on oxidation by poly{[4-(hydroxy)(tosyloxy)iodo] styrene} (PS-HTIB) in CH2Cl2 at room temperature to afford the corresponding pyridine derivatives in good yields. The polymeric reagent can be recycled and reused with no obvious loss of activity.
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Affiliation(s)
- Fang-Qing Li
- Faculty of Chemistry Biology and Material Science, East China Institute of Technology, 344000, Fuzhou, P.R. China
| | - Xiao-Mei Zeng
- State Key Laboratory for Chemical Fibers Modification and Polymer Materials, Donghua University, Shanghai 200051, P.R. China
| | - Jiang-Min Chen
- College of Biological and Chemical Engineering, Jiaxing University, 314001, Jiaxing, P.R. China
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Traven VF, Ivanov IV, Dolotov SM, Semakin AN, Cheptsov DA, Mamirgova ZZ. Efficient Photooxidation of Aryl(hetaryl)pyrazolines by Benzoquinone. Photochem Photobiol 2019; 95:924-930. [DOI: 10.1111/php.13082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/28/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Valery F. Traven
- D. Mendeleev University of Chemical Technology of Russia; Moscow Russia
| | - Ivan V. Ivanov
- D. Mendeleev University of Chemical Technology of Russia; Moscow Russia
| | - Sergei M. Dolotov
- D. Mendeleev University of Chemical Technology of Russia; Moscow Russia
| | - Artem N. Semakin
- D. Mendeleev University of Chemical Technology of Russia; Moscow Russia
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10
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Memarian HR, Minakar R. Thermal electron-transfer-induced oxidation of 2-pyrazolines. Mol Divers 2019; 23:953-964. [PMID: 30712117 DOI: 10.1007/s11030-019-09922-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 01/18/2019] [Indexed: 11/29/2022]
Abstract
Various 3,5-diaryl-1-phenyl-2-pyrazolines were synthesized, and their thermal oxidation to their corresponding 2-pyrazoles was investigated using tetrabutylammonium peroxydisulfate in acetonitrile solution. Compared to the reported oxidative methods, this oxidizing agent provides a clean and non-expensive oxidative reaction in a short reaction time. Based on the proposed reaction mechanism, the extent of co-planarity of the C3-aryl ring toward C3=N2 double bond of the heterocyclic ring affects the electron-donating ability of the heterocyclic ring and decreases the time of oxidative reaction. The experimental results are supported by cyclic voltammetric measurements.
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Affiliation(s)
- Hamid Reza Memarian
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Islamic Republic of Iran.
| | - Reza Minakar
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, Islamic Republic of Iran
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11
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Zhang D, Sha M. Facile Aromatisation of Hantzsch 1,4-Dihydropyridines by Autoxidation in the Presence of P-toluenesulfonic Acid in Acetic Acid. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15208600846791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A simple protocol to achieve the aromatisation of Hantzsch dihydropyridines in high yield was established using p-toluenesulfonic acid in acetic acid and yields of 90% were obtained at room temperature. With regards to the Hantzsch 1,4-dihydropyridines derived from alkyl aldehydes bearing one or more á-hydrogens, dealkylation products were obtained through a proposed autoxidation mechanism.
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Affiliation(s)
- Ding Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P.R. China
| | - Min Sha
- School of Management Science and Engineering, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210046, P.R. China
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12
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Hati S, Holzgrabe U, Sen S. Oxidative dehydrogenation of C-C and C-N bonds: A convenient approach to access diverse (dihydro)heteroaromatic compounds. Beilstein J Org Chem 2017; 13:1670-1692. [PMID: 28904611 PMCID: PMC5564259 DOI: 10.3762/bjoc.13.162] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/25/2017] [Indexed: 01/22/2023] Open
Abstract
Nitrogen heteroarenes form an important class of compounds which can be found in natural products, synthetic drugs, building blocks etc. Among the diverse strategies that were developed for the synthesis of nitrogen heterocycles, oxidative dehydrogenation is extremely effective. This review discusses various oxidative dehydrogenation strategies of C-C and C-N bonds to generate nitrogen heteroarenes from their corresponding heterocyclic substrates. The strategies are categorized under stoichiometric and catalytic usage of reagents that facilitate such transformations. The application of these strategies in the synthesis of nitrogen heteroarene natural products and synthetic drug intermediates are also discussed. We hope this review will arouse sufficient interest among the scientific community to further advance the application of oxidative dehydrogenation in the synthesis of nitrogen heteroarenes.
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Affiliation(s)
- Santanu Hati
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, GautamBuddha Nagar, Uttar Pradesh 201314, India
| | - Ulrike Holzgrabe
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, GautamBuddha Nagar, Uttar Pradesh 201314, India
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13
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Maleki B, Barakchi Tabrizy F, Tayebee R, Baghayeri M. Oxidative Aromatization of 1,3,5-trisubstituted 2-pyrazolines Using Oxalic Acid/Sodium Nitrite System. Polycycl Aromat Compd 2017. [DOI: 10.1080/10406638.2016.1267019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Behrooz Maleki
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
| | | | - Reza Tayebee
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
| | - Mehdi Baghayeri
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
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14
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Illa GT, Hazra S, Satha P, Purohit CS. Hydrogen-bonded molecular capsules: probing the role of water molecules in capsule formation in modified cyclotricatechylene. CrystEngComm 2017. [DOI: 10.1039/c7ce01075c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pyridine moiety-appended doubly bridged cyclotricatechylene (CTC(Py)2(OH)2) was synthesized and characterized. Solid state studies show that CTC(Py)2(OH)2 forms a capsular assembly in the presence of water but a polymeric assembly in its absence.
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Affiliation(s)
- Giri Teja Illa
- School of Chemical Sciences
- National Institute of Science Education and Research Bhubaneswar
- HBNI
- Khurda – 752050
- India
| | - Sohan Hazra
- School of Chemical Sciences
- National Institute of Science Education and Research Bhubaneswar
- HBNI
- Khurda – 752050
- India
| | - Pardhasaradhi Satha
- School of Chemical Sciences
- National Institute of Science Education and Research Bhubaneswar
- HBNI
- Khurda – 752050
- India
| | - Chandra Shekhar Purohit
- School of Chemical Sciences
- National Institute of Science Education and Research Bhubaneswar
- HBNI
- Khurda – 752050
- India
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15
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Lai S, Ren X, Zhao J, Tang Z, Li G. Simple Brønsted acid catalyzed C–H functionalization: efficient access to poly-substituted pyridines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Turovska B, Lund H, Lūsis V, Lielpētere A, Liepiņš E, Beljakovs S, Goba I, Stradiņš J. Photoinduced 1,2,3,4-tetrahydropyridine ring conversions. Beilstein J Org Chem 2015; 11:2166-70. [PMID: 26664638 PMCID: PMC4660982 DOI: 10.3762/bjoc.11.234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 10/27/2015] [Indexed: 01/28/2023] Open
Abstract
Stable heterocyclic hydroperoxide can be easily prepared as a product of fast oxidation of a 1,2,3,4-tetrahydropyridine by (3)O2 if the solution is exposed to sunlight. The driving force for the photoinduced electron transfer is calculated from electrochemical and spectroscopic data. The outcome of the reaction depends on the light intensity and the concentration of O2. In the solid state the heterocyclic hydroperoxide is stable; in solution it is involved in further reactions.
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Affiliation(s)
- Baiba Turovska
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Henning Lund
- Department of Organic Chemistry, Aarhus University, Langelandsgade 140, DK 8000 Aarhus, Denmark
| | - Viesturs Lūsis
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Anna Lielpētere
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Edvards Liepiņš
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Sergejs Beljakovs
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Inguna Goba
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Jānis Stradiņš
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
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17
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Han R, He L, Liu L, Xie X, She X. An Upstream By-product from Ester Activation via NHC-Catalysis Catalyzes Downstream Sulfonyl Migration Reaction. Chem Asian J 2015; 11:193-7. [DOI: 10.1002/asia.201500959] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/13/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Runfeng Han
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou, Gansu 730000 P.R. China
| | - Liwenze He
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou, Gansu 730000 P.R. China
| | - Lin Liu
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou, Gansu 730000 P.R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou, Gansu 730000 P.R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou, Gansu 730000 P.R. China
- Collaborative Innovation Centre of Chemical Science and Engineering; Tianjin 300071 P.R. China
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18
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Bai CB, Wang NX, Wang YJ, Lan XW, Xing Y, Wen JL. A new oxidation system for the oxidation of Hantzsch-1,4-dihydropyridines and polyhydroquinoline derivatives under mild conditions. RSC Adv 2015. [DOI: 10.1039/c5ra20977c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An oxidation system to synthesize pyridine derivatives has been developed by oxidation of 1,4-dihydropyridines and polyhydroquinoline derivatives in good yields.
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Affiliation(s)
- Cui-Bing Bai
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Yan-Jing Wang
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Xing-Wang Lan
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Yalan Xing
- Department of Chemistry
- William Paterson University of New Jersey
- Wayne
- USA
| | - Jia-Long Wen
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
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19
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Allais C, Grassot JM, Rodriguez J, Constantieux T. Metal-Free Multicomponent Syntheses of Pyridines. Chem Rev 2014; 114:10829-68. [DOI: 10.1021/cr500099b] [Citation(s) in RCA: 363] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christophe Allais
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean-Marie Grassot
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean Rodriguez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Thierry Constantieux
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
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20
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Banerjee D, Kayal U, Karmakar R, Maiti G. 3,4-Dihydro-2H-pyran promoted aerobic oxidative aromatization of 1,3,5-trisubstituted pyrazolines and Hantzsch 1,4-dihydropyridines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Yu J, Kim KH, Moon HR, Kim JN. Facile One-Pot Synthesis of 1,3,5-Trisubstituted Pyrazoles from α,β-Enones. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.6.1692] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Mild and efficient oxidation of 2-pyrazolines and isoxazolines by trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane–NH4Cl–HOAc in water–MeCN. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1626-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Jia X, Yu L, Huo C, Wang Y, Liu J, Wang X. Catalytic aromatization of 1,4-dihydropyridines by radical cation salt prompted aerobic oxidation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.11.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Azarifar D, Khosravi K. Oxidative Aromatization of 1,3,5-Trisubstituted 4,5-Dihydro-1H-Pyrazoles Efficiently by Tetrabromine-1,3,5,7-Tetrazatricyclo[3.3.1.13,7]Decane Complex, Br4-Tatcd, as a Novel Reagent both Under Microwave Irradiation and at Room Temperature. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200900007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Heravi MM, Bakhtiari K, Oskooie HA. KHSO4Supported Onto Bentonite, A Versatile Reagent for Aromatization of Hantzsch 1,4-Dihydropyridines. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200700083] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Lou BH, Chen SB, Wang J, Chen Y, Li JH. An Efficient Transition-Metal-Chloride/Sodium-Nitrite/TEMPO Catalytic System for Aerobic Oxidative Aromatisation of Hantzsch 1,4-Dihydropyridines. JOURNAL OF CHEMICAL RESEARCH 2013. [DOI: 10.3184/174751913x13701832537930] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A facile and efficient transition-metal-chloride/sodium-nitrite/TEMPO catalytic system for aerobic oxidative aromati-sation of Hantzsch 1,4-dihydropyridines in high yields under mild conditions is described.
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Affiliation(s)
- Bin-Hui Lou
- College of Pharmaceutical Sciences, Zhejiang University of Technology, 310032, Hangzhou, P. R. China
| | - Shu-Bin Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, 310032, Hangzhou, P. R. China
| | - Jian Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, 310032, Hangzhou, P. R. China
| | - Ying Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, 310032, Hangzhou, P. R. China
| | - Jing-Hua Li
- College of Pharmaceutical Sciences, Zhejiang University of Technology, 310032, Hangzhou, P. R. China
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27
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Ghosh PP, Mukherjee P, Das AR. Triton-X-100 catalyzed synthesis of 1,4-dihydropyridines and their aromatization to pyridines and a new one pot synthesis of pyridines using visible light in aqueous media. RSC Adv 2013. [DOI: 10.1039/c3ra40706c] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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28
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Comins DL, Higuchi K, Young DW. Dihydropyridine Preparation and Application in the Synthesis of Pyridine Derivatives. ADVANCES IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-408100-0.00006-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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29
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An efficient and rapid dehydrogenation of 4-aryl-3,4-dihydropyrimidin-2(1H)-ones (DHPMs) using CAN/HCl. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Gamapwar SV, Tale NP, Karade NN. Dess–Martin Periodinane–Mediated Oxidative Aromatization of 1,3,5-Trisubstituted Pyrazolines. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.563449] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Kumar P, Kumar A, Hussain K. Iodobenzene diacetate (IBD) catalyzed an quick oxidative aromatization of Hantzsch-1,4-dihydropyridines to pyridines under ultrasonic irradiation. ULTRASONICS SONOCHEMISTRY 2012; 19:729-735. [PMID: 22296993 DOI: 10.1016/j.ultsonch.2011.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Revised: 12/15/2011] [Accepted: 12/26/2011] [Indexed: 05/31/2023]
Abstract
This project was undertaken to demonstrate the potential of iodobenzene diacetate for the oxidative aromatization of Hantzch-1,4-dihydropyridines under ultrasonic irradiation. All reactions were carried out under ultrasonic irradiation and results were compared with traditional method. Sonochemical switching was observed in case of oxidative aromatization of 4-n-alkyl substituted 1,4-DHP. Without sonication, dealkylation occurred in case of n-alkyl substituted 1,4-DHP (ionic mechanism) but under ultrasonic irradiation, n-alkyl group was not expelled (radical mechanism). However, secondary alkyl (isopropyl) and benzyl group were expelled under both conditions.
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Affiliation(s)
- Parvin Kumar
- Department of Chemistry, Kururkshetra University, Kurukshetra, Haryana 136119, India.
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32
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Han B, Yang XL, Wang C, Bai YW, Pan TC, Chen X, Yu W. CuCl/DABCO/4-HO-TEMPO-catalyzed aerobic oxidative synthesis of 2-substituted quinazolines and 4H-3,1-benzoxazines. J Org Chem 2011; 77:1136-42. [PMID: 22168403 DOI: 10.1021/jo2020399] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cu/N-ligand/TEMPO catalytic system was first applied to the aerobic oxidative synthesis of heterocycles. As demonstrated, 2-substituted quinazolines and 4H-3,1-benzoxazines were synthesized efficiently from the one-pot reaction of aldehydes with 2-aminobenzylamines and 2-aminobenzyl alcohols, respectively, by employing CuCl/DABCO/4-HO-TEMPO as the catalysts and oxygen as the terminal oxidant.
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Affiliation(s)
- Bing Han
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Street, Lanzhou 730000, P. R. China.
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33
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Maleki B, Veisi H. Aromatization of 1,3,5-Trisubstituted of 4,5-Dihydro-1H-Pyrazoles by In-Situ Generation of I+from Hydrogen Peroxide/Acids/Iodide Potassium or Sodium Systems. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.12.4366] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Shi LX, Zhao WF, Xu X, Tang J, Wu CD. From 1D to 3D single-crystal-to-single-crystal structural transformations based on linear polyanion [Mn4(H2O)18WZnMn2(H2O)2(ZnW9O34)2]4-. Inorg Chem 2011; 50:12387-9. [PMID: 22074312 DOI: 10.1021/ic2020572] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A 1D anionic polyoxometalate, [Mn(4)(H(2)O)(18)WZnMn(2)(H(2)O)(2)(ZnW(9)O(34))(2)](4-), undergoes 1D to 3D single-crystal-to-single-crystal structural transformations that are induced by transition-metal cations (Co(2+) and Cu(2+)) and solvent molecules. These solid materials present interesting catalytic activity for the oxidative aromatization of Hantzsch 1,4-dihydropyridines that is dependent on the inserted heterogeneous metal cations.
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Affiliation(s)
- Lian-Xu Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China
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35
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Jin W, Yu H, Yu Z. Regioselective synthesis of multisubstituted pyrazoles via cyclocondensation of β-thioalkyl-α,β-unsaturated ketones with hydrazines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.168] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Han B, Han RF, Ren YW, Duan XY, Xu YC, Zhang W. Efficient aerobic oxidative dehydrogenation of dihydropyrimidinones and dihydropyrimidines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.105] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Patil NT, Singh V. Synthesis of 1,3,5-trisubstituted pyrazolines via Zn(ii)-catalyzed double hydroamination of enynes with aryl hydrazines. Chem Commun (Camb) 2011; 47:11116-8. [DOI: 10.1039/c1cc14850h] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Han B, Wang C, Han RF, Yu W, Duan XY, Fang R, Yang XL. Efficient aerobic oxidative synthesis of 2-aryl quinazolines via benzyl C–H bond amination catalyzed by 4-hydroxy-TEMPO. Chem Commun (Camb) 2011; 47:7818-20. [PMID: 21655637 DOI: 10.1039/c1cc12308d] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Bing Han
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China.
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39
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Wang D, Liu Q, Chen B, Zhang L, Tung C, Wu L. Photooxidation of Hantzsch 1,4-dihydropyridines by molecular oxygen. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s11434-010-3143-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Liu D, Gui J, Wang C, Lu F, Yang Y, Sun Z. Oxidative Aromatization of Hantzsch 1,4-Dihydropyridines Catalyzed by Ferric Perchlorate in Ionic Liquids with Air. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903029925] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Dan Liu
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
| | - Jianzhou Gui
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
| | - Chan Wang
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
| | - Feng Lu
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
| | - Yulian Yang
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
| | - Zhaolin Sun
- a College of Chemistry and Materials Science , Liaoning Shihua University , Fushun, Liaoning, China
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41
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Su J, Zhang C, Lin D, Duan Y, Fu X, Mu R. Oxidative Aromatization of Hantzsch 1,4-Dihydropyridines by H2O2/V2O5at Room Temperature. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903007087] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jinlong Su
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
| | - Cai Zhang
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
| | - Dan Lin
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
| | - Yiqin Duan
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
| | - Xiangkai Fu
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
| | - Ruizhu Mu
- a College of Chemistry and Chemical Engineering, Southwest University , Chongqing, China
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42
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Liu Y, Mao D, Lou S, Qian J, Xu ZY. Oxidative Aromatization of 1,3,5-Trisubstituted Pyrazolines Using Hydrogen Tetrachloroaurate as Catalyst Under an Oxygen Atmosphere. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304940902956119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Azarifar D, Maleki B, Sahraei M. Microwave‐promoted oxidation of 1,3,5‐trisubstituted 4,5‐dihydro‐1
H
‐pyrazoles by
in‐situ
generation of NO
+
and NO respectively from sodium nitrite and sodium nitrate in acetic acid. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.5570450241] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Davood Azarifar
- Faculty of Chemistry, Bu‐Ali Sina University, Postal Code 65178, Hamadan, Iran
| | - Behrooz Maleki
- Faculty of Chemistry, Bu‐Ali Sina University, Postal Code 65178, Hamadan, Iran
| | - Mahta Sahraei
- Faculty of Chemistry, Bu‐Ali Sina University, Postal Code 65178, Hamadan, Iran
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44
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Chen Y, Qian L, Zhang W, Han B. Efficient Aerobic Oxidative Synthesis of 2‐Substituted Benzoxazoles, Benzothiazoles, and Benzimidazoles Catalyzed by 4‐Methoxy‐TEMPO. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803381] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong‐Xing Chen
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Ling‐Feng Qian
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
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45
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Chen Y, Qian L, Zhang W, Han B. Efficient Aerobic Oxidative Synthesis of 2‐Substituted Benzoxazoles, Benzothiazoles, and Benzimidazoles Catalyzed by 4‐Methoxy‐TEMPO. Angew Chem Int Ed Engl 2008; 47:9330-3. [DOI: 10.1002/anie.200803381] [Citation(s) in RCA: 284] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong‐Xing Chen
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Ling‐Feng Qian
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
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46
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A novel combination of (diacetoxyiodo)benzene and tert-butylhydroperoxide for the facile oxidative dehydrogenation of 3,4-dihydropyrimidin-2(1H)-ones. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Adibi H, Hajipour AR, Jafari H. Metal-free oxidative dehydrogenation of imidazolines and pyrazolines using silica-adsorbed peroxymonosulfate under aprotic and almost neutral conditions. Chem Heterocycl Compd (N Y) 2008. [DOI: 10.1007/s10593-008-0112-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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48
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Coppola GM. N-Hydroxyphthalimide/Cobalt Acetate, a New Catalytic Oxidative System for the Synthesis of Benzimidazoles. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802162959] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Gary M. Coppola
- a Department of Metabolic and Cardiovascular Diseases , Novartis Institutes for Biomedical Research , Cambridge, Massachusetts, USA
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49
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Su G, Wu WT, Wang JT, Wu LM. TBPA+ mediated aromatization of 1,3,5-trisubstituted pyrazolines. CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Azarifar D, Maleki B, Setayeshnazar M. Silica Sulfuric Acid-Activated Poly-1,3,- dichloro-5-methyl-5-(4’-vinylphenyl)hydantoin (PDCVH) as an Effective Reagent for Oxidation of 1,3,5-Trisubstituted 2-Pyrazolines Both under Microwave Irradiation and Thermal Conditions. HETEROCYCLES 2008. [DOI: 10.3987/com-07-11248] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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