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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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Laviós A, Martínez-Pardo P, Sanz-Marco A, Vila C, Pedro JR, Blay G. Synthesis of α,α-Diaryl-α-amino Acid Precursors by Reaction of Isocyanoacetate Esters with o-Quinone Diimides. Org Lett 2023; 25:5608-5612. [PMID: 37486803 PMCID: PMC10853967 DOI: 10.1021/acs.orglett.3c01965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Indexed: 07/26/2023]
Abstract
A novel procedure for the synthesis of α,α-diaryl-α-amino acid derivatives has been developed. Silver oxide catalyzes the conjugate addition of α-aryl isocyanoacetates to o-quinone diimide, affording the corresponding α,α-diarylisocyano esters in excellent yields and regioselectivities in short reaction times. Acid hydrolysis of the isocyano group provides the corresponding amino acids bearing a diarylated tetrasubstituted carbon atom. The reaction is also amenable to the synthesis of α-alkyl-α-arylisocyano esters, while the reaction with 3-hydroxy o-quinone diimides provides 4H-benzo[e][1,3]oxazines via a conjugate addition/cyclization process.
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Affiliation(s)
- Adrián Laviós
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
| | - Pablo Martínez-Pardo
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
| | - Amparo Sanz-Marco
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
| | - Carlos Vila
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, Burjassot E-46100, Spain
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3
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Popova EA, Pronina YA, Davtian AV, Nepochatyi GD, Petrov ML, Boitsov VM, Stepakov AV. Squaramide-Based Catalysts in Organic Synthesis (A Review). RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s107036322203001x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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4
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Takagi R, Yamasaki Y. Chiral Calcium Bis-sulfonimide Catalyzed Diels-Alder Reactions of 1-Acryloyl-pyrazole. CHEM LETT 2021. [DOI: 10.1246/cl.210403] [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)
- Ryukichi Takagi
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Yuhei Yamasaki
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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5
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One-pot formal [3+3] cycloaddition of isocyanoacetates with in situ-derived azoalkenes for the synthesis of 1,4-dihydropyrimidine derivatives. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Chang L, Zhu GY, Yang T, Zhao XL, Shi M, Zhao MX. Organocatalytic asymmetric formal [3 + 2] cycloaddition reaction of isocyanoacetates with saccharin-derived 1-azadienes. Org Biomol Chem 2021; 19:3687-3697. [PMID: 33908569 DOI: 10.1039/d1ob00115a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An efficient organocatalytic diastereo- and enantioselective formal [3 + 2] cycloaddition reaction of α-isocyanoacetates with saccharin-derived 1-azadienes catalyzed by a dihydroquinine derived squaramide catalyst has been investigated, and it furnished the corresponding directly linked benzo[d]isothiazole 1,1-dioxide-dihydropyrroles with two adjacent tertiary-quaternary stereocenters in high yields (up to 98%), with moderate to excellent stereoselectivities (up to >20 : 1 dr and 97% ee) under mild conditions.
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Affiliation(s)
- Li Chang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China.
| | - Guang-Yu Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China.
| | - Ting Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China.
| | - Xiao-Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China. and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Mei-Xin Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China.
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7
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Luo J, Chen GS, Chen SJ, Li ZD, Liu YL. Catalytic Enantioselective Isocyanide-Based Reactions: Beyond Passerini and Ugi Multicomponent Reactions. Chemistry 2021; 27:6598-6619. [PMID: 32964538 DOI: 10.1002/chem.202003224] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Indexed: 12/19/2022]
Abstract
The development of catalytic enantioselective isocyanide-based reactions is currently of great interest because the resulting products are valuable in organic synthesis, pharmacological chemistry, and materials science. This review assembles and comprehensively summarizes the recent achievements in this rapidly growing area according to the reaction types. Special attention is paid to the advantages, limitations, possible mechanisms, and synthetic applications of each reaction. In addition, a personal outlook on the opportunities for further exploration is given at the end.
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Affiliation(s)
- Jian Luo
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Guo-Shu Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Shu-Jie Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Zhao-Dong Li
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Wushan Street five road No. 483, Guangzhou, 510642, P. R. China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
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Liang MZ, Meek SJ. Synthesis of Quaternary Carbon Stereogenic Centers by Diastereoselective Conjugate Addition of Boron-Stabilized Allylic Nucleophiles to Enones. J Am Chem Soc 2020; 142:9925-9931. [PMID: 32408746 DOI: 10.1021/jacs.0c03900] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A method for the site-selective and diastereoselective conjugate addition of boron-stabilized allylic nucleophiles to α,β-unsaturated ketones is disclosed. Transformations involve easily prepared γ,γ-disubstituted allyldiboron reagents and proceed in the presence of a fluoride activator at 80 °C. Reactions proceed with a wide variety of enones and allyldiboron reagents efficiently to deliver ketone products that contain otherwise difficult-to-access vicinal β-tertiary and γ-quaternary carbon stereogenic centers and an alkenylboron moiety. The utility of the method is highlighted by several transformations, including cross-coupling and carbocyclizations.
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Affiliation(s)
- Michael Z Liang
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Simon J Meek
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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9
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Zhao MX, Xiang J, Zhao ZQ, Zhao XL, Shi M. Asymmetric synthesis of dihydrocoumarins via catalytic sequential 1,6-addition/transesterification of α-isocyanoacetates with para-quinone methides. Org Biomol Chem 2020; 18:1637-1646. [DOI: 10.1039/c9ob02652e] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dihydroquinidine-derived aminophosphine/AgNO3 catalyzed asymmetric tandem 1,6-addition/transesterification of α-isocyanoacetates with o-hydroxyphenyl-substituted p-QMs was developed.
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Affiliation(s)
- Mei-Xin Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Juan Xiang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zi-Qiang Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xiao-Li Zhao
- Department of Chemistry
- East China Normal University
- Shanghai
- China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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10
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Zhao MX, Liu Q, Yu KM, Zhao XL, Shi M. Organocatalyzed asymmetric formal [3 + 2] cycloaddition of isocyanoacetates withN-itaconimides: facile access to optically active spiropyrroline succinimide derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo00939f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This reaction provides facile access to a variety of optically active spiropyrroline succinimide derivatives in moderate to good yields and good to excellent stereoselectivities.
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Affiliation(s)
- Mei-Xin Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Qiang Liu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Kun-Ming Yu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xiao-Li Zhao
- Department of Chemistry
- East China Normal University
- Shanghai
- China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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