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Hu SJ, Jiang LL, Qiu H, Luo CM, Guan YT, Li L, Dong Y, Lei KW, Wei WT. Cyclization/hydrolysis of 1,5-enenitriles initiated by sulfonyl radicals in the aqueous phase in the presence of the I 2/TBHP system. Org Biomol Chem 2022; 20:6418-6422. [PMID: 35876742 DOI: 10.1039/d2ob01124g] [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
A novel cyclization/hydrolysis of 1,5-enenitriles for the synthesis of valuable pyrrolidine-2,4-diones in the aqueous phase using I2 as the catalyst and tert-butyl hydroperoxide (TBHP) as the oxidant is reported. In the presence of the I2/TBHP system, sulfonyl hydrazides produce sulfonyl radicals, which undergo radical addition, intramolecular cyclization, hydrogen abstraction, and hydrolysis to give the final products. The use of the inexpensive and environmentally friendly I2/TBHP catalytic oxidation system in the aqueous phase makes it a benign and sustainable strategy.
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Affiliation(s)
- Sen-Jie Hu
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Li-Lin Jiang
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Hui Qiu
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Chun-Mei Luo
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yu-Tao Guan
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Long Li
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Youren Dong
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ke-Wei Lei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Wen-Ting Wei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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2
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Tandem annulation and 1,2-alkyl migration reactions of α-bromo-β-oxoamides and amines: Access to polysubstituted pyrrolin-4-ones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Li B, Yuan J, Ye X, Zhang R, Li J, Wang Y, Hu J, Dong D. PIFA-Mediated Tandem Hofmann-Type Rearrangement and Cyclization Reaction of α-Acyl-β-aminoacrylamides: Access to Polysubstituted Oxazol-2(3 H)-ones. J Org Chem 2021; 86:17944-17954. [PMID: 34872249 DOI: 10.1021/acs.joc.1c02276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient and straightforward synthesis of polysubstituted oxazol-2(3H)-ones has been developed via a tandem Hofmann-type rearrangement and cyclization reaction of various α-acyl-β-aminoacrylamides mediated by phenyl iodine(III) bis(trifluoroacetate) (PIFA) in the presence of trifloroacetic acid (TFA). This novel protocol features readily available starting materials, mild reaction conditions, simple execution, high chemoselectivity, good functional group tolerance, and a metal-free oxidation process.
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Affiliation(s)
- Baibin Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jingwen Yuan
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xuebei Ye
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Rui Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jiacheng Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yu Wang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jiana Hu
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Dewen Dong
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
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4
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Abstract
AbstractEnaminones are gaining increasing interest because of their unique properties and their importance in organic synthesis as versatile building blocks. N,N-Dimethyl enaminones offer a better leaving group (a dimethylamine group) than other enaminones, and allow further elaboration via a range of facile chemical transformations. Over the past five years, there have been an increasing number of reports describing the synthetic applications of N,N-dimethyl enaminones. This review provides a comprehensive overview on the synthetic applications of N,N-dimethyl enaminones that have been reported since 2016.1 Introduction2 Direct C(sp2)–H α-Functionalization2.1 Synthesis of α-Sulfenylated N,N-Dimethyl Enaminones2.2 Synthesis of α-Thiocyanated N,N-Dimethyl Enaminones2.3 Synthesis of α-Acyloxylated N,N-Dimethyl Enaminones3 Functionalization Reactions via C=C Double Bond Cleavage3.1 Synthesis of Functionalized Methyl Ketones3.2 Synthesis of α-Ketoamides, α-Ketoesters and 1,2-Diketones3.3 Synthesis of N-Sulfonyl Amidines4 Construction of All-Carbon Aromatic Scaffolds4.1 Synthesis of Benzaldehydes4.2 Synthesis of the Naphthalenes5 Construction of Heterocyclic Scaffolds5.1 Synthesis of Five-Membered Heterocycles5.2 Synthesis of Six-Membered Heterocycles5.3 Synthesis of Quinolines 5.4 Synthesis of Functionalized Chromones5.5 Synthesis of Other Fused Polycyclic Heterocycles6 Conclusions and Perspectives
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Affiliation(s)
- Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology
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5
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Moon S, Kato M, Nishii Y, Miura M. Synthesis of Benzo[
b
]thiophenes through Rhodium‐Catalyzed Three‐Component Reaction using Elemental Sulfur. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000112] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sanghun Moon
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
| | - Moena Kato
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
| | - Yuji Nishii
- Frontier Research Base for Global Young ResearchersGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
| | - Masahiro Miura
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
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6
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Ring opening [3 + 2] cyclization of azaoxyallyl cations with benzo[d]isoxazoles: Efficient access to 2-hydroxyaryl-oxazolines. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.09.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Zhan S, Yan C. Efficient Synthesis of Functionalized 6‐(2‐Oxoindolin‐3‐yl)‐5‐azaspiro[2.4]heptanes. ChemistrySelect 2019. [DOI: 10.1002/slct.201902785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shao‐Cong Zhan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Chao‐Guo Yan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
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8
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Yuan J, Deng B, Liang Y, Rao CB, Zhang R, Zhao Y, Dong D. PIFA/TEMPO‐Mediated Oxidative Cascade Cyclization of
α
‐[(
β
‐Amino)propenoyl]‐Alkylamides: Access to Polysubstituted 3,7‐Dihydrooxazolo[4,5‐
c
]pyridine‐2,4,6(5
H
)‐triones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jingwen Yuan
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Bicheng Deng
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yanning Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
| | - Dewen Dong
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
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9
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Deng B, Rao CB, Zhang R, Li J, Liang Y, Zhao Y, Gao M, Dong D. A Formal [3+2] Annulation of
β
‐Oxoamides and 3‐Alkyl‐ or 3‐Aryl‐Substituted Prop‐2‐Ynyl Sulfonium Salts: Substrate‐Controlled Chemoselective Synthesis of Substituted
γ
‐Lactams and Furans. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bicheng Deng
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Jiacheng Li
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yanning Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
| | - Ming Gao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Dewen Dong
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
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