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Xiong P, Xu F, Qian XY, Yohannes Y, Song J, Lu X, Xu HC. Copper-Catalyzed Intramolecular Oxidative Amination of Unactivated Internal Alkenes. Chemistry 2016; 22:4379-83. [PMID: 26878987 DOI: 10.1002/chem.201600329] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 12/30/2022]
Abstract
A copper-catalyzed oxidative amination of unactivated internal alkenes has been developed. The Wacker-type oxidative alkene amination reaction is traditionally catalyzed by a palladium through a mechanism involving aminopalladation and β-hydride elimination. Replacing the precious and scarce palladium with a cheap and abundant copper for this transformation has been challenging because of the difficulty associated with the aminocupration of internal alkenes. The combination of a simple copper salt, without additional ligand, as the catalyst and Dess-Martin periodinane as the oxidant, promotes efficiently the oxidative amination of allylic carbamates and ureas bearing di- and trisubstituted alkenes leading to oxazolidinones and imidazolidinones. Preliminary mechanistic studies suggested a hybrid radical-organometallic mechanism involving an amidyl radical cyclization to form the key C-N bond.
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Affiliation(s)
- Peng Xiong
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Fan Xu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiang-Yang Qian
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Yared Yohannes
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Jinshuai Song
- Fujian Institute of Research on Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Xin Lu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China.
| | - Hai-Chao Xu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China.
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52
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Zhu X, Chiba S. Copper-catalyzed oxidative carbon–heteroatom bond formation: a recent update. Chem Soc Rev 2016; 45:4504-23. [DOI: 10.1039/c5cs00882d] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review updates recent advances in Cu-catalyzed (anaerobic) oxidative carbon–heteroatom bond formation on sp3- and sp2-C–H bonds as well as alkenes, classified according to the types of stoichiometric oxidants.
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Affiliation(s)
- Xu Zhu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore
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53
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Duan Y, Wang T, Xie Q, Yu X, Guo W, Wang J, Liu G. Highly efficient nitrogen chelated ruthenium carbene metathesis catalysts. Dalton Trans 2016; 45:19441-19448. [DOI: 10.1039/c6dt03899a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly efficient nitrogen chelated ruthenium carbene metathesis catalysts containing an N-heterocyclic carbene (NHC) and a carbonyl group have been developed.
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Affiliation(s)
- Yulian Duan
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Tao Wang
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Qingxiao Xie
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Xiaobo Yu
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Weijie Guo
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Jianhui Wang
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
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54
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Rao WH, Yin XS, Shi BF. Catalyst-Controlled Amino- versus Oxy-Acetoxylation of Urea-Tethered Alkenes: Efficient Synthesis of Cyclic Ureas and Isoureas. Org Lett 2015; 17:3758-61. [PMID: 26166021 DOI: 10.1021/acs.orglett.5b01741] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A catalyst-controlled vicinal amino- versus oxy-acetoxylation of alkenes with PhI(OAc)2 as the oxidant is described. The divergent synthesis of cyclic ureas and isoureas was achieved in good yields under mild conditions employing ambident urea nucleophiles. Both terminal and internal alkenes are compatible with this reaction protocol.
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Affiliation(s)
- Wei-Hao Rao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xue-Song Yin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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55
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Shen K, Wang Q. Copper-catalyzed diamination of unactivated alkenes with hydroxylamines. Chem Sci 2015; 6:4279-4283. [PMID: 29218196 PMCID: PMC5707484 DOI: 10.1039/c5sc00897b] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/14/2015] [Indexed: 12/16/2022] Open
Abstract
A copper-catalyzed regio- and stereoselective diamination of unactivated alkenes has been developed with O-acylhydroxylamines as electrophilic nitrogen sources and oxidants. This method provides the first example of metal-catalyzed alkene diamination for directly installing an electron-rich amino group and extends the diamination scope for the synthesis of diverse 1,2-diamines. It offers a rapid and efficient approach to construct a wide range of 1,2-diamines that are an important structural motif in organic synthesis, medicines, catalysts and ligands.
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Affiliation(s)
- Kun Shen
- Department of Chemistry , Duke University , Durham , NC 27708-0346 , US .
| | - Qiu Wang
- Department of Chemistry , Duke University , Durham , NC 27708-0346 , US .
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56
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Kennedy MD, Bailey SJ, Wales SM, Keller PA. Enantiopure Trans-4,5-Disubstituted 2-Imidazolidinones via Copper(I)-Catalyzed Ring Opening of 1,1′-DiBoc-2,2′-Biaziridine with Grignard Reagents. J Org Chem 2015; 80:5992-8. [DOI: 10.1021/acs.joc.5b00832] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew D. Kennedy
- School
of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Stephen J. Bailey
- School
of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Steven M. Wales
- School
of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Paul A. Keller
- School
of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
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