1
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Huang HP, Xie YH, Gan XM, Wen XY, Wang CX, Deng YQ, Zhang ZW. Squaramide-catalyzed enantioselective Michael addition of nitromethane to 2-enoylazaarenes: synthesis of chiral azaarene-containing γ-nitroketones. RSC Adv 2024; 14:20056-20060. [PMID: 38911828 PMCID: PMC11192089 DOI: 10.1039/d4ra03826f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 06/10/2024] [Indexed: 06/25/2024] Open
Abstract
Bifunctional chiral squaramide-catalyzed highly enantioselective Michael addition of nitromethane to diverse 2-enoylazaarenes was successfully performed. This protocol provided a set of chiral azaarene-containing γ-nitroketones with up to 98% yield and 98% ee in a solvent-free catalytic system under mild conditions. Furthermore, gram-scale synthetic utility was also showcased.
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Affiliation(s)
- Hong-Ping Huang
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Yu-Hang Xie
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Xu-Mei Gan
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Xin-Yu Wen
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Cui-Xia Wang
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Yan-Qiu Deng
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
| | - Zhen-Wei Zhang
- College of Pharmacy, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine Nanning Guangxi 530200 P. R. of China
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2
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Sanz-Marco A, Esperilla D, Montesinos-Magraner M, Vila C, Muñoz MC, Pedro JR, Blay G. A Cu-BOX catalysed enantioselective Mukaiyama-aldol reaction with difluorinated silyl enol ethers and acylpyridine N-oxides. Org Biomol Chem 2023; 21:345-350. [PMID: 36484719 DOI: 10.1039/d2ob01763f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Cu(II)/BOX complex catalyses the enantioselective addition of difluorinated silyl enol ethers to acylpyridine N-oxides. The reaction provides difluorinated chiral tertiary alcohols of great interest in medicinal chemistry. These compounds are obtained in moderate to excellent yields and with high enantioselectivities. The stereochemical outcome of the reaction has been explained by DFT calculations.
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Affiliation(s)
- Amparo Sanz-Marco
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Daniel Esperilla
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Marc Montesinos-Magraner
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Carlos Vila
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, C/Cami de Vera s/n, 46022-València, Spain
| | - José R Pedro
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Gonzalo Blay
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
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3
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Ballini R, Palmieri A, Petrini M. Catalysts’ evolution in the asymmetric conjugate addition of nitroalkanes to electron-poor alkenes. Org Chem Front 2022. [DOI: 10.1039/d2qo01341j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review provides a journey of the catalyst usage for the enantioselective conjugate addition of nitroalkanes to electron-poor olefins from the early attempts to the latest achievements. Selected applications are also reported.
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Affiliation(s)
- Roberto Ballini
- School of Science and Technology, Chemistry Division, University of Camerino, CHIP, Via Madonna delle Carceri, 62032 Camerino, MC, Italy
| | - Alessandro Palmieri
- School of Science and Technology, Chemistry Division, University of Camerino, CHIP, Via Madonna delle Carceri, 62032 Camerino, MC, Italy
| | - Marino Petrini
- School of Science and Technology, Chemistry Division, University of Camerino, CHIP, Via Madonna delle Carceri, 62032 Camerino, MC, Italy
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4
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Lu W, Li J, Lu Y, Zha Z, Wang Z. Copper‐Catalyzed Enantioselective Mukaiyama Aldol Reaction of Silyl Enol Ethers with Isatin‐Derived Oxindolyl β,γ‐Unsaturated α‐Keto Esters. ChemistrySelect 2021. [DOI: 10.1002/slct.202004823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wenjing Lu
- Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science University of Science and Technology of China Hefei 230026 P. R. China
| | - Jindong Li
- Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science University of Science and Technology of China Hefei 230026 P. R. China
| | - Yangmian Lu
- Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science University of Science and Technology of China Hefei 230026 P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science University of Science and Technology of China Hefei 230026 P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science University of Science and Technology of China Hefei 230026 P. R. China
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5
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Fujieda N, Ichihashi H, Yuasa M, Nishikawa Y, Kurisu G, Itoh S. Cupin Variants as a Macromolecular Ligand Library for Stereoselective Michael Addition of Nitroalkanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nobutaka Fujieda
- Department of Applied Life Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai-shi Osaka 599-8531 Japan
| | - Haruna Ichihashi
- Department of Material and Life Science Graduate School of Engineering Osaka University 2-1 Yamada-oka, Suita Osaka 565-0871 Japan
| | - Miho Yuasa
- Department of Applied Life Sciences Graduate School of Life and Environmental Sciences Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai-shi Osaka 599-8531 Japan
| | - Yosuke Nishikawa
- Institute for Protein Research Osaka University 3-2 Yamada-oka, Suita Osaka 565-0871 Japan
| | - Genji Kurisu
- Institute for Protein Research Osaka University 3-2 Yamada-oka, Suita Osaka 565-0871 Japan
| | - Shinobu Itoh
- Department of Material and Life Science Graduate School of Engineering Osaka University 2-1 Yamada-oka, Suita Osaka 565-0871 Japan
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6
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Huang Y, Zha Z, Wang Z. Copper Catalyzed Diastereo- and Enantioselective 1,4-Addition Michael Reaction of 2,3-Dioxopyrrolidines with Nitroalkanes in Aqueous Media. Org Lett 2020; 22:2512-2516. [PMID: 32069055 DOI: 10.1021/acs.orglett.0c00030] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A good diastereo- and enantioselective 1,4-addition Michael reaction catalyzed by a chiral copper complex was developed in aqueous media. A series of nitro-containing pyrrolidones could be gained in high yields with excellent diastereoselectivities and good ee values by virtue of this developed method. It affords a facile access to construct carbon-carbon bonds with water and air tolerance. Furthermore, the gram scale synthesis was conducted successfully to give rise to the corresponding products.
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Affiliation(s)
- Yekai Huang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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7
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Fujieda N, Ichihashi H, Yuasa M, Nishikawa Y, Kurisu G, Itoh S. Cupin Variants as a Macromolecular Ligand Library for Stereoselective Michael Addition of Nitroalkanes. Angew Chem Int Ed Engl 2020; 59:7717-7720. [PMID: 32073197 DOI: 10.1002/anie.202000129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Indexed: 12/12/2022]
Abstract
Cupin superfamily proteins (TM1459) work as a macromolecular ligand framework with a double-stranded β-barrel structure ligating to a Cu ion through histidine side chains. Variegating the first coordination sphere of TM1459 revealed that H52A and H54A/H58A mutants effectively catalyzed the diastereo- and enantioselective Michael addition reaction of nitroalkanes to an α,β-unsaturated ketone. Moreover, calculated substrate docking signified C106N and F104W single-point mutations, which inverted the diastereoselectivity of H52A and further improved the stereoselectivity of H54A/H58A, respectively.
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Affiliation(s)
- Nobutaka Fujieda
- Department of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai-shi, Osaka, 599-8531, Japan
| | - Haruna Ichihashi
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Miho Yuasa
- Department of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai-shi, Osaka, 599-8531, Japan
| | - Yosuke Nishikawa
- Institute for Protein Research, Osaka University, 3-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Genji Kurisu
- Institute for Protein Research, Osaka University, 3-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Shinobu Itoh
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
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8
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Luan Y, Huang A, Cheng Y, Liu X, Li P, Li W. Organocatalytic Enantioselective Michael Addition of Oxazolones to 2‐Enoylpyridine
N
‐Oxides for Assembling of Pyridine
N
‐Oxides Featuring Vicinal Oxygen‐Containing Tetrasubstituted Stereocenters. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yipeng Luan
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Anqi Huang
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Yuyu Cheng
- Department of Chemistry and Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology, Shenzhen Guangdong 518055 People's Republic of China
| | - Xiaohong Liu
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Pengfei Li
- Department of Chemistry and Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology, Shenzhen Guangdong 518055 People's Republic of China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
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9
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Li J, Li Y, Sun J, Gui Y, Huang Y, Zha Z, Wang Z. Copper-catalyzed enantioselective Mukaiyama aldol reaction of silyl enol ethers with isatins. Chem Commun (Camb) 2019; 55:6309-6312. [PMID: 31089588 DOI: 10.1039/c9cc02159k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly enantioselective Mukaiyama aldol reaction of silyl enol ethers with isatins catalyzed by chiral copper complexes was developed. A series of chiral 3-substituted 3-hydroxy-2-oxindoles bearing a tetra-substituted center could be obtained exclusively with high yields (up to 95%) and excellent enantioselectivities (up to 99%). In particular, water was essential to improve the diastereoselectivity.
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Affiliation(s)
- Jindong Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, 230026, P. R. China.
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10
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Sun J, Li Y, Gui Y, Xu Y, Zha Z, Wang Z. Copper(II)-catalyzed enantioselective conjugate addition of nitro esters to 2-enoyl-pyridine N-oxides. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Zhang P, Guo X, Liu C, Li W, Li P. Enantioselective Construction of Pyridine N-Oxides Featuring 2,3-Dihydrofuran Motifs via Phosphine-Catalyzed [4 + 1]-Annulation of 2-Enoylpyridine N-Oxides with Morita–Baylis–Hillman Carbonates. Org Lett 2018; 21:152-155. [DOI: 10.1021/acs.orglett.8b03612] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pengfei Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, P. R. China
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Xing Guo
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Chang Liu
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Pengfei Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, P. R. China
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12
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Huang Y, Li Y, Sun J, Li J, Zha Z, Wang Z. Enantioselective Hetero-Diels-Alder Reaction and the Synthesis of Spiropyrrolidone Derivatives. J Org Chem 2018; 83:8464-8472. [PMID: 29974745 DOI: 10.1021/acs.joc.8b01057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An efficient enantioselective hetero-Diels-Alder reaction was developed under catalysis of a chiral copper complex. A variety of spiropyrrolidones, which bear a tetra-substituted carbon stereocenter, can be obtained in good yields with excellent enantioselectivities by virtue of this method. Furthermore, a substrate-dependent reaction pathway was proposed on the basis of the isolated intermediates.
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Affiliation(s)
- Yekai Huang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Yanan Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Jianan Sun
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Jindong Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences , Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Materials Science in University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
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13
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Zheng K, Liu X, Feng X. Recent Advances in Metal-Catalyzed Asymmetric 1,4-Conjugate Addition (ACA) of Nonorganometallic Nucleophiles. Chem Rev 2018; 118:7586-7656. [PMID: 30047721 DOI: 10.1021/acs.chemrev.7b00692] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The metal-catalyzed asymmetric conjugate addition (ACA) reaction has emerged as a general and powerful approach for the construction of optically active compounds and is among the most significant and useful reactions in synthetic organic chemistry. In recent years, great progress has been made in this area with the use of various chiral metal complexes based on different chiral ligands. This review provides comprehensive and critical information on the enantioselective 1,4-conjugate addition of nonorganometallic (soft) nucleophiles and their importance in synthetic applications. The literature is covered from the last 10 years, and a number of examples from before 2007 are included as background information. The review is divided into multiple parts according to the type of nucleophile involved in the reaction (such as C-, B-, O-, N-, S-, P-, and Si-centered nucleophiles) and metal catalyst systems used.
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Affiliation(s)
- Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
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14
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Tan Y, Harms K, Meggers E. A Chiral‐at‐Metal Iridium Catalyst with Two Simple but Sterically Demanding Cyclometalated N‐Heterocyclic Carbene Ligands. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuqi Tan
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
| | - Eric Meggers
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
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15
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Xu Y, Zhang S, Li L, Wang Y, Zha Z, Wang Z. l-Phenylalanine potassium catalyzed asymmetric formal [3 + 3] annulation of 2-enoyl-pyridine N-oxides with acetone. Org Chem Front 2018. [DOI: 10.1039/c7qo00796e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective formal [3 + 3] annulation of 2-enoyl-pyridine N-oxides with acetone was developed.
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Affiliation(s)
- Youguo Xu
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
| | - Sheng Zhang
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
| | - Lijun Li
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
| | - Yukang Wang
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Department of Chemistry
- University of Science and Technology of China Hefei
- Anhui 230026
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16
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Li Y, Huang Y, Gui Y, Sun J, Li J, Zha Z, Wang Z. Copper-Catalyzed Enantioselective Henry Reaction of β,γ-Unsaturated α-Ketoesters with Nitromethane in Water. Org Lett 2017; 19:6416-6419. [PMID: 29152983 DOI: 10.1021/acs.orglett.7b03299] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly enantioselective Henry reaction of β,γ-unsaturated α-ketoesters with nitromethane in water by virtue of chiral copper complexes has been developed. A series of unsaturated β-nitro-α-hydroxy esters bearing tetrasubstituted carbon stereocenters were obtained exclusively with high yields and excellent enantioselectivities. This method could avoid tedious anaerobic anhydrous manipulation and reduce the environmental pollution caused by organic solvents.
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Affiliation(s)
- Yanan Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Yekai Huang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Yang Gui
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Jianan Sun
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Jindong Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
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