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1
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Xue X, Wang Y, Zhou L, Ge R, Yang J, Kong X, Xu M, Li Z, Ma L, Duan H. An Electrocatalytic Strategy for Dehydrogenative [4+2] Cycloaddition over a Cobalt‐based catalyst. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaomeng Xue
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Ye Wang
- Department of Chemistry Tsinghua University Beijing 100084 China
| | - Lina Zhou
- State Key Laboratory of Catalytic Materials and Reaction Engineering Research Institute of Petroleum Processing, SINOPEC Beijing 100083 China
| | - Ruixiang Ge
- Department of Chemistry Tsinghua University Beijing 100084 China
| | - Jiangrong Yang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Ming Xu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Lina Ma
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China
| | - Haohong Duan
- Department of Chemistry Tsinghua University Beijing 100084 China
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2
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Nagy D, Pilipecz MV, Kiss LA, Alekszi-Kaszás A, Simon A, Schlosser GZ, Nemes P, Varga TR. Synthesis of 2-aryl-1,2,4-triazol-3-one derivatives from β-nitroenamines. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1913504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Dániel Nagy
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Budapest, Hungary
| | - Mihály V. Pilipecz
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - László A. Kiss
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Anna Alekszi-Kaszás
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - András Simon
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Budapest, Hungary
| | - Gitta Z. Schlosser
- Institute of Chemistry, MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group, Eötvös Loránd University, Budapest, Hungary
| | - Péter Nemes
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Tamás R. Varga
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
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3
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Pilipecz MV, Varga TR, Králl P, Vincze Z, Mucsi Z, Deme R, Szabó PT, Nemes P. Simple route to new oxadiazaboroles and oxadiazoles via amidoximes. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1755439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mihály V. Pilipecz
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Tamás R. Varga
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Péter Králl
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Zoltán Vincze
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | | | - Ruth Deme
- Department of Pharmaceutical Chemistry, Semmelweis University of Medicine, Budapest, Hungary
| | - Pál T. Szabó
- Instrumentation Center, Hungarian Academy of Sciences Research Centre for Natural Sciences, Budapest, Hungary
| | - Péter Nemes
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
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4
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Bagi P, Herbay R, Péczka N, Mucsi Z, Timári I, Keglevich AG. Preparation of 2-phospholene oxides by the isomerization of 3-phospholene oxides. Beilstein J Org Chem 2020; 16:818-832. [PMID: 32395185 PMCID: PMC7189000 DOI: 10.3762/bjoc.16.75] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/31/2020] [Indexed: 12/19/2022] Open
Abstract
A series of 1-substituted-3-methyl-2-phospholene oxides was prepared from the corresponding 3-phospholene oxides by double bond rearrangement. The 2-phospholene oxides could be obtained by heating the 3-phospholene oxides in methanesulfonic acid, or via the formation of cyclic chlorophosphonium salts. Whereas mixtures of the 2- and 3-phospholene oxides formed, when the isomerization of 3-phospholene oxides was attempted under thermal conditions, or in the presence of a base. The mechanisms of the various double bond migration pathways were elucidated by quantum chemical calculations.
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Affiliation(s)
- Péter Bagi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Réka Herbay
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Nikolett Péczka
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | | | - István Timári
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Hungary
| | - And György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
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5
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Hwang JY, Ji AY, Lee SH, Kang EJ. Redox-Selective Iron Catalysis for α-Amino C-H Bond Functionalization via Aerobic Oxidation. Org Lett 2019; 22:16-21. [PMID: 31651180 DOI: 10.1021/acs.orglett.9b03542] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Single-electron oxidation and α-deprotonation of tertiary anilines using Fe(phen)3(PF6)3 afford α-aminoalkyl radicals, which can be coupled with electrophilic partners to afford various tetrahydroquinolines. Mechanistically, the Fe(phen)n2+/3+ catalytic cycle is maintained by O2 or a TBHP oxidant, and the presence of the oxygen bound iron complex, Fe(III)-OO(H), was elucidated by electron paramagnetic resonance and electrospray ionization mass spectrometry. This redox-selective nonheme iron catalyst behaves similarly to bioinspired heme iron catalysts.
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Affiliation(s)
- Joon Young Hwang
- Department of Applied Chemistry , Kyung Hee University , Yongin 17104 , Korea
| | - A Young Ji
- Department of Applied Chemistry , Kyung Hee University , Yongin 17104 , Korea
| | - Sang Hyeok Lee
- Department of Applied Chemistry , Kyung Hee University , Yongin 17104 , Korea
| | - Eun Joo Kang
- Department of Applied Chemistry , Kyung Hee University , Yongin 17104 , Korea
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6
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Alekszi-Kaszás A, Nemes P, Tóth G, Halász J, Scheiber P. Mannich condensations of activated cyclic enamines. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1484488] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Anna Alekszi-Kaszás
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Péter Nemes
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
| | - Gábor Tóth
- Department of Inorganic and Analytical Chemistry, NMR Group, Budapest University of Technology and Economics, Budapest, Hungary
| | - Judit Halász
- Laboratory of Structural Chemistry, Egis Pharmaceuticals Plc, Budapest, Hungary
| | - Pál Scheiber
- Department of Chemistry, University of Veterinary Medicine, Budapest, Hungary
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7
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Chen R, Ogunlana AA, Fang S, Long W, Sun H, Bao X, Wan X. In situ generation of nitrile oxides from copper carbene and tert-butyl nitrite: synthesis of fully substituted isoxazoles. Org Biomol Chem 2018; 16:4683-4687. [PMID: 29892743 DOI: 10.1039/c8ob01067f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we present a novel [3 + 2] cycloaddition reaction of β-keto esters with nitrile oxides, which were generated in situ from copper carbene and tert-butyl nitrite. This three-component reaction provides new methodology for the direct synthesis of fully substituted isoxazole derivatives, featuring mild reaction conditions, readily accessible starting materials and simple operation. The experimental studies and DFT calculations suggest that the reaction starts with the generation of the key intermediate nitrile oxides, followed by a [3 + 2] cycloaddition reaction of β-keto esters to give the final isoxazole products.
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Affiliation(s)
- Rongxiang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Abosede Adejoke Ogunlana
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Shangwen Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hongmei Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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8
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Morita T, Yugandar S, Fuse S, Nakamura H. Recent progresses in the synthesis of functionalized isoxazoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.020] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Kuwabara J, Sawada Y, Yoshimatsu M. Copper-Mediated Reactions of Nitriles with Nitromethanes: Aza-Henry Reactions and Nitrile Hydrations. Org Lett 2018; 20:1130-1133. [DOI: 10.1021/acs.orglett.8b00058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jun Kuwabara
- Department of Chemistry, Faculty of Education, and ‡Division of Instrumental Analysis,
Life Science Research Center, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Yoshiharu Sawada
- Department of Chemistry, Faculty of Education, and ‡Division of Instrumental Analysis,
Life Science Research Center, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry, Faculty of Education, and ‡Division of Instrumental Analysis,
Life Science Research Center, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
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10
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Korgavkar NN, Samant SD. 1,3-Dipolar cycloaddition reaction of aryl nitrile oxides with alkenes using imidazole and pyridine containing reusable polymeric base catalysts. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1399207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nilesh N. Korgavkar
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Shriniwas D. Samant
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai, India
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11
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Xu F, Kang WF, Wang XN, Zhu YY, Chen SX, Kong YJ, Fang SM. Hypervalent iodine-induced formation of 3,5-disubstituted isoxazoles via [3 + 2] cycloaddition of diynes with aldoximes. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-016-1907-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Gerosa GG, Grimblat N, Spanevello RA, Suárez AG, Sarotti AM. Mechanistic insight into the acid-catalyzed isomerization of biomass-derived polysubstituted pyrrolidines: an experimental and DFT study. Org Biomol Chem 2017; 15:426-434. [DOI: 10.1039/c6ob02457b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of the acid-catalyzed isomerization of polysubstituted pyrrolidines was unravelled by a combination of experimental, spectroscopic and computational studies.
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Affiliation(s)
- Gabriela G. Gerosa
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
| | - Nicolás Grimblat
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
| | - Rolando A. Spanevello
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
| | - Alejandra G. Suárez
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
| | - Ariel M. Sarotti
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
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