1
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Wall BJ, Byerly-Duke J, VanVeller B. Thermal Rearrangement of the S-N Bond of Thiooxime Esters. J Org Chem 2024. [PMID: 39361875 DOI: 10.1021/acs.joc.4c01571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
The labile O-N bond of oxime esters has enabled versatile access to many heterocyclic scaffolds. Alternatively, the analogous chemistry for thiooxime esters, which contain an S-N bond, has not been explored. Herein, we interrogate the reactivity of thiooxime esters and identify a homolytic fragmentation and rearrangement mechanism. This work provides the first exploration of the reactivity of this S-N functional group.
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Affiliation(s)
- Brendan J Wall
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jacob Byerly-Duke
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Brett VanVeller
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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2
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Bodala V, Podugu RL, Yettula K, Kadiri SK, Vidavalur S. Substituent-Oriented Synthesis of Substituted Pyridines/Pyrido[3,2-C]coumarins via Sequential Reactions of α-H and Me/Aryl Substituted Oxime Acetates and 3-Formylchromones. J Org Chem 2024; 89:12957-12966. [PMID: 39196990 DOI: 10.1021/acs.joc.4c00899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2024]
Abstract
A facile one pot sequential and highly chemoselective synthesis of substituted pyridines/pyrido[3,2-c]coumarins has been developed from oxime acetates and 3-formylchromones in the presence of FeCl2. This reaction was oriented by different substituents on the α-position (H, methyl/aryl) of oxime acetates. Mechanistic investigations suggested that substituted pyridines were formed via intramolecular aza-Michael addition followed by ring opening, while pyrido[3,2-c]coumarins were formed via intermolecular Michael addition. Besides, anti-TB activity was screened for some of the synthesized pyridines. Among the tested compounds, 3ga, 3ha, 3ja, 3ma, 3ac, 4pa, 4pb and 4sb were found to have good activity with an MIC of 12.5 μg/mL.
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Affiliation(s)
- Varaprasad Bodala
- Department of Organic Chemistry and FDW, School of Chemistry, AU College of Science and Technology, Andhra University, Visakhapatnam, India, 500003
| | - Rajitha Lakshmi Podugu
- Department of Organic Chemistry and FDW, School of Chemistry, AU College of Science and Technology, Andhra University, Visakhapatnam, India, 500003
| | - Kumari Yettula
- Department of Organic Chemistry and FDW, School of Chemistry, AU College of Science and Technology, Andhra University, Visakhapatnam, India, 500003
| | - Sunanda Kumari Kadiri
- Department of MicrobiologyAndhra University, AU College of Science and Technology, Andhra University, Visakhapatnam, India, 530003
| | - Siddaiah Vidavalur
- Department of Organic Chemistry and FDW, School of Chemistry, AU College of Science and Technology, Andhra University, Visakhapatnam, India, 500003
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3
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Liu M, Liu B, Chen H, Wang Q, Liu L, Feng K, Wang Z, Li Q. Synthesis of 2 H-imidazoles via copper-catalyzed homo/cross-coupling of oxime acetates. Org Biomol Chem 2024; 22:7316-7320. [PMID: 39171576 DOI: 10.1039/d4ob00977k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
A facile and practical protocol to construct 2H-imidazoles by applying an oxime acetate block as the sole component via oxidative homo/cross-coupling catalyzed by Cu(I) was developed. This strategy provides a straightforward method to produce a series of substituted 2H-imidazoles in moderate to excellent yields. The transformation process is straightforward to operate and is considered as a readily available catalytic system exhibiting good substrate compatibility, eliminating the necessity for pre-functionalization of azides or the use of additives.
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Affiliation(s)
- Min Liu
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Bifu Liu
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Hongyan Chen
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Qian Wang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Lixin Liu
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Kejun Feng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Zijia Wang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
| | - Qiang Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, No. 1, Hunan Street, Liaocheng, Shandong 252000, P. R. China
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4
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Xu G, Li L, Xu B, Fang Z, Duan J, Guo K. Copper-catalyzed three-component annulation toward pyrroles via the cleavage of two C-C bonds in 1,3-dicarbonyls. Chem Commun (Camb) 2023; 59:10636-10639. [PMID: 37580978 DOI: 10.1039/d3cc02681g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
The first copper-catalyzed three-component annulation of α,β-unsaturated ketoximes, 1,3-dicarbonyls and paraformaldehyde has been documented. This novel strategy achieved the two C-C bond cleavage of 1,3-dicarbonyl compounds directly as a single-carbon synthon and provided a new and highly efficient method for the synthesis of 2,3-disubstituted pyrroles in moderate to good yields with broad functional group compatibility.
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Affiliation(s)
- Gaochen Xu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Luchao Li
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Binyan Xu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
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5
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Substituent-Dependent Divergent Synthesis of 2-(3-Amino-2,4-dicyanophenyl)pyrroles, Pyrrolyldienols and 3-Amino-1-acylethylidene-2-cyanopyrrolizines via Reaction of Acylethynylpyrroles with Malononitrile. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238528. [PMID: 36500621 PMCID: PMC9737003 DOI: 10.3390/molecules27238528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/11/2022]
Abstract
An efficient method for the synthesis of pharmaceutically and high-tech prospective 2-(3-amino-2,4-dicyanophenyl)pyrroles (in up to 88% yield) via the reaction of easily available substituted acylethynylpyrroles with malononitrile has been developed. The reaction proceeds in the KOH/MeCN system at 0 °C for 2 h. In the case of 2-acylethynylpyrroles without substituents in the pyrrole ring, the reaction changes direction: instead of the target 2-(3-amino-2,4-dicyanophenyl)pyrroles, the unexpected formation of pyrrolyldienols and products of their intramolecular cyclization, 3-amino-1-acylethylidene-2-cyanopyrrolizines, is observed.
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6
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Yan H, Xu G, Gu M, Zhang S, Wu Q, Meng J, Zhu N, Fang Z, Duan J, Guo K. Copper-catalyzed [4+2] oxidative annulation of α,β-unsaturated ketoxime acetates with ethyl trifluoropyruvate. Chem Commun (Camb) 2022; 58:6757-6760. [PMID: 35611963 DOI: 10.1039/d2cc01573k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel route for tandem C-N/C-O formation via copper-catalyzed [4+2] oxidative annulation of α,β-unsaturated ketoxime acetates with ethyl trifluoropyruvate to synthesize valuable trifluoromethyl-containing 2H-1,3-oxazines in moderate to good yields is developed. This procedure represents the first [4+2] oxidative annulation of oxime derivatives with activated CO bonds and provides an alternative route towards functionalized 2H-1,3-oxazines.
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Affiliation(s)
- Huan Yan
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Gaochen Xu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Meng Gu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Sai Zhang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Qinghuan Wu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Jingjing Meng
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S, Nanjing, 211816, China.
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7
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Wang ZH, Yang P, Zhang YP, You Y, Zhao JQ, Zhou MQ, Yuan WC. Copper‐catalyzed ring‐opening (3+2) annulation of cyclopropenones with ketoxime acetates: access to 1,2‐dihydro‐pyrrol‐3‐ones bearing a quaternary carbon center. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhen-Hua Wang
- Chengdu University Innovation Research Center of Chiral Drugs, Institute for Advanced Study CHINA
| | - Ping Yang
- ZMC: Zunyi Medical University School of Pharmacy CHINA
| | - Yan-Ping Zhang
- Chengdu University Innovation Research Center of Chiral Drugs, Institute for Advanced Study CHINA
| | - Yong You
- Chengdu University Innovation Research Center of Chiral Drugs, Institute for Advanced Study CHINA
| | - Jian-Qiang Zhao
- Chengdu University Innovation Research Center of Chiral Drugs, Institute for Advanced Study CHINA
| | - Ming-Qiang Zhou
- Chengdu Institute of Organic Chemistry CAS: Chengdu Organic Chemicals Co Ltd National Engineering Research Center of Chiral Drugs CHINA
| | - Wei-Cheng Yuan
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences National Engineering Research Center of Chiral Drugs Renmin South Road Block 4, No. 9 610041 Chengdu CHINA
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8
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Sun S, Huang J, Yuan C, Wang G, Guo D, Wang J. Switchable assembly of substituted pyrimidines and 2 H-imidazoles via Cu( i)-catalysed ring expansion of 2 methoxyl-2 H-azirines. Org Chem Front 2022. [DOI: 10.1039/d2qo00341d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The unprecedented switchable synthesis of substituted pyrimidines and 2H-imidazoles via the Cu(i)-catalyzed ring expansion of 2-methoxyl-2H-azirines is described.
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Affiliation(s)
- Shaofa Sun
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, 437100, China
| | - Jie Huang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, 437100, China
| | - Cheng Yuan
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, 437100, China
| | - Gangqiang Wang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, 437100, China
- School of Pharmaceutical Sciences, South-Central MinZu University, Wuhan, 430074, China
| | - Donghui Guo
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Jian Wang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, 437100, China
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
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9
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Lavernhe R, Torres-Ochoa RO, Wang Q, Zhu J. Copper-Catalyzed Aza-Sonogashira Cross-Coupling To Form Ynimines: Development and Application to the Synthesis of Heterocycles. Angew Chem Int Ed Engl 2021; 60:24028-24033. [PMID: 34469033 PMCID: PMC8596870 DOI: 10.1002/anie.202110901] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Indexed: 12/14/2022]
Abstract
Nitrogen‐substituted alkynes, such as ynamines and ynamides, are versatile synthetic building blocks. Ynimines bearing additional nucleophilic and electrophilic centers relative to ynamines and ynamides are expected to have high synthetic potential. However, their chemical reactivity remains unexplored owing mainly to the lack of synthetic accessibility. We report herein a versatile copper‐catalyzed synthesis of ynimines from readily available O‐acetyl ketoximes and terminal alkynes. A wide range of O‐acetyl ketoximes derived from diaryl ketones, aryl alkyl ketones and dialkyl ketones underwent cross‐coupling with a diverse set of terminal alkynes to afford the ynimines in good to excellent yields. An unprecedented [5+1] heteroannulation reaction exploiting the reactivity of the ynimine generated in situ was subsequently developed for the synthesis of medicinally important heterocycles, including isoquinolines, azaindoles, azabenzofurans, azabenzothiophenes and carbolines.
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Affiliation(s)
- Rémi Lavernhe
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federal de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Rubén O Torres-Ochoa
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federal de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland.,Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federal de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federal de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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10
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Lavernhe R, Torres‐Ochoa RO, Wang Q, Zhu J. Copper‐Catalyzed Aza‐Sonogashira Cross‐Coupling To Form Ynimines: Development and Application to the Synthesis of Heterocycles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110901] [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)
- Rémi Lavernhe
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Federal de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Rubén O. Torres‐Ochoa
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Federal de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
- Instituto de Química Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria, Coyoacán Ciudad de México 04510 México
| | - Qian Wang
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Federal de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Federal de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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11
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Xu Z, Chen H, Deng GJ, Huang H. Copper-catalyzed three-component formal [3 + 1 + 2] annulations for the synthesis of 2-aminopyrimidines from O-acyl ketoximes. Org Biomol Chem 2021; 19:8706-8710. [PMID: 34581386 DOI: 10.1039/d1ob01582f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A copper-based catalytic system has been developed to enable formal [3 + 1 + 2] annulations of ketoxime acetates, aldehydes, and cyanamides. This protocol offers a new strategy for the synthesis of highly substituted 2-aminopyrimidine compounds, and more importantly, pyrimidines have now been included in the N-heterocycle family constructed using O-acyl ketoximes as N-C-C synthons.
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Affiliation(s)
- Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Hongbiao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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12
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Affiliation(s)
- Ya‐Feng Si
- School of Biology Zhengzhou University Zhengzhou 450001 People's Republic of China
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Qi‐Yan Lv
- School of Biology Zhengzhou University Zhengzhou 450001 People's Republic of China
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
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13
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Synthesis and spectroscopic properties of rotamers in the series of 2-(fluoroaryl)-4-substituted pyrroles. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Chen B, He H, Xu J, Guo K, Xu N, Chen K, Zhu Y. Transition‐Metal‐Free Visible Light‐Induced Imino‐trifluoromethylation of Unsaturated Oxime Esters: A Facile Access to CF
3
‐Tethered Pyrrolines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bin Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Han He
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Jiawei Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Kang Guo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Ning Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Kang Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
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15
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Xu Z, Xian N, Chen H, Deng G, Huang H. Cu‐Catalyzed
Cascade Cyclization of Ketoxime Acetates and Alkynals Enabling Synthesis of Acylpyrroles. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Ning Xian
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Hongbiao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China
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16
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Makarov AS, Fadeev AA, Uchuskin MG. Intramolecular iron-catalyzed transannulation of furans with O-acetyl oximes: synthesis of functionalized pyrroles. Org Chem Front 2021. [DOI: 10.1039/d1qo01281a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Intramolecular iron(iii)-catalyzed reaction of furyl-tethered O-acetyl oximes yields substituted pyrroles through electrophilic 5-exo-trig ipso-addition of nitrogen to the furan ring.
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Affiliation(s)
- Anton S. Makarov
- Department of Chemistry, Perm State University, Bukireva 15, Perm, 614990, Russia
| | - Alexander A. Fadeev
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2, 12800, Czech Republic
| | - Maxim G. Uchuskin
- Department of Chemistry, Perm State University, Bukireva 15, Perm, 614990, Russia
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17
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Facile access to fluoroalkylated 2-aminopyridines by Cu-catalyzed [3 + 3] couplings of oxime esters with β-CF3 acrylonitrile. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Upare A, Chouhan NK, Ramaraju A, Sridhar B, Bathula SR. Access to pyrrolo[2,1-a]isoindolediones from oxime acetates and ninhydrin via Cu(i)-mediated domino annulations. Org Biomol Chem 2020; 18:1743-1746. [DOI: 10.1039/d0ob00058b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-mediated domino condensation reaction of easily accessible oxime acetates with ninhydrin to give pyrrolo[2,1-a]isoindolediones is reported.
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Affiliation(s)
- Atul Upare
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- AcSIR (Academy of Scientific & Innovative Research)
| | - Neeraj Kumar Chouhan
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- AcSIR (Academy of Scientific & Innovative Research)
| | - Andhavaram Ramaraju
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Balasubramanian Sridhar
- X-ray Crystallography Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Surendar Reddy Bathula
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- AcSIR (Academy of Scientific & Innovative Research)
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19
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Chen C, Zhao J, Shi X, Liu L, Zhu YP, Sun W, Zhu B. Recent advances in cyclization reactions of unsaturated oxime esters (ethers): synthesis of versatile functionalized nitrogen-containing scaffolds. Org Chem Front 2020. [DOI: 10.1039/d0qo00397b] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We summarized recent advances in cyclization reactions of unsaturated oxime esters (ethers), which provide diversiform functionalized nitrogen-containing scaffolds.
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Affiliation(s)
- Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Jinghui Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Xiaonan Shi
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Liying Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Yan-Ping Zhu
- School of Pharmacy
- Key Laboratory of Molecular Pharmacology and Drug Evaluation
- Ministry of Education
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong
- Yantai University
| | - Wan Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
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20
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González‐Soria MJ, Alonso F. Substrate‐Controlled Divergent Synthesis of Enaminones and Pyrroles from Indolizines and Nitroso Compounds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- María José González‐Soria
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Alicante Apdo. 99 03080 Alicante Spain
| | - Francisco Alonso
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Alicante Apdo. 99 03080 Alicante Spain
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21
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Mao PF, Zhou LJ, Zheng AQ, Miao CB, Yang HT. Cu(OAc)2-Triggered Cascade Reaction of Malonate-Tethered Acyl Oximes with Indoles, Indole-2-alcohols, and Indole-2-carboxamides. Org Lett 2019; 21:3153-3157. [DOI: 10.1021/acs.orglett.9b00849] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Peng-Fei Mao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Li-Jin Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - An-Qi Zheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
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22
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Wang Y, Ding J, Zhao J, Sun W, Lian C, Chen C, Zhu B. Iminyl radical-promoted imino sulfonylation, imino cyanogenation and imino thiocyanation of γ,δ-unsaturated oxime esters: synthesis of versatile functionalized pyrrolines. Org Chem Front 2019. [DOI: 10.1039/c9qo00421a] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We reported an iminyl radical-promoted imino-functionalization of γ,δ-unsaturated oxime esters to synthesize versatile functionalized pyrrolines.
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Affiliation(s)
- Yuebo Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Jie Ding
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Jinghui Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Wan Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Chang Lian
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
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23
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Huang H, Qu Z, Ji X, Deng GJ. Three-component bis-heterocycliation for synthesis of 2-aminobenzo[4,5]thieno[3,2-d]thiazoles. Org Chem Front 2019. [DOI: 10.1039/c8qo01365a] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A cooperative base system has been developed for the novel three-component synthesis of 2-aminobenzo[4,5]thieno[3,2-d]thiazoles via bis-heterocyclization of methylketoxime acetates.
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Affiliation(s)
- Huawen Huang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Zhonghua Qu
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaochen Ji
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
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24
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Ramaraju A, Chouhan NK, Ravi O, Sridhar B, Bathula SR. Cu-Catalyzed Coupling of O
-Acyl Oximes with Isatins: Domino Rearrangement Strategy for Direct Access to Quinoline-4-Carboxamides by C-N Bond Cleavage. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800501] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Andhavaram Ramaraju
- Division of Natural Products Chemistry; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad India
- IICT-RMIT Joint Research Center; CSIR-IICT; Hyderabad India
| | - Neeraj Kumar Chouhan
- Division of Natural Products Chemistry; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad India
| | - Owk Ravi
- Division of Natural Products Chemistry; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad India
- Academy of Scientific and Innovative Research; 110001 New Delhi India
| | - Balasubramanian Sridhar
- X-ray Crystallography Division; CSIR-Indian Institute of Chemical Technology; 500007 Tarnaka, Hyderabad India
| | - Surendar Reddy Bathula
- Division of Natural Products Chemistry; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad India
- IICT-RMIT Joint Research Center; CSIR-IICT; Hyderabad India
- Academy of Scientific and Innovative Research; 110001 New Delhi India
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25
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Brewer SM, Palacios PM, Johnston HM, Pierce BS, Green KN. Isolation and identification of the pre-catalyst in iron-catalyzed direct arylation of pyrrole with phenylboronic acid. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Bai D, Wang X, Zheng G, Li X. Redox‐Divergent Synthesis of Fluoroalkylated Pyridines and 2‐Pyridones through Cu‐Catalyzed N−O Cleavage of Oxime Acetates. Angew Chem Int Ed Engl 2018; 57:6633-6637. [DOI: 10.1002/anie.201802311] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecules and Drugs InnovationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xueli Wang
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Guangfan Zheng
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecules and Drugs InnovationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
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27
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Guo YQ, Zhao MN, Ren ZH, Guan ZH. Copper-Promoted 6- endo-trig Cyclization of β,γ-Unsaturated Hydrazones for the Synthesis of 1,6-Dihydropyridazines. Org Lett 2018; 20:3337-3340. [PMID: 29790767 DOI: 10.1021/acs.orglett.8b01240] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel and efficient strategy for the synthesis of 1,6-dihydropyridazines via copper-promoted 6- endo-trig cyclization of readily available β,γ-unsaturated hydrazones have been developed. A series of 1,6-dihydropyridazines have been synthesized by this method with good yields, high functional group tolerance, and remarkable regioselectivity under mild conditions. Importantly, the 1,6-dihydropyridazines can be efficiently converted to biologically important pyridazines in the presence of NaOH.
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Affiliation(s)
- Yong-Qiang Guo
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Mi-Na Zhao
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China
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28
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Shimbayashi T, Nakamoto D, Okamoto K, Ohe K. Facile Construction of Tetrahydropyrrolizines by Iron-Catalyzed Double Cyclization of Alkene-Tethered Oxime Esters with 1,2-Disubstituted Alkenes. Org Lett 2018; 20:3044-3048. [DOI: 10.1021/acs.orglett.8b01073] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Takuya Shimbayashi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Daiki Nakamoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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29
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Bai D, Wang X, Zheng G, Li X. Redox‐Divergent Synthesis of Fluoroalkylated Pyridines and 2‐Pyridones through Cu‐Catalyzed N−O Cleavage of Oxime Acetates. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802311] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecules and Drugs InnovationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xueli Wang
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Guangfan Zheng
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecules and Drugs InnovationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
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30
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Guo K, Zhang H, Cao S, Gu C, Zhou H, Li J, Zhu Y. Copper-Catalyzed Domino Cyclization/Trifluoromethylthiolation of Unactivated Alkenes: Access to SCF3-Containing Pyrrolines. Org Lett 2018; 20:2261-2264. [DOI: 10.1021/acs.orglett.8b00614] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kang Guo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Honglin Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shujun Cao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chen Gu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Huating Zhou
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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31
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Yang HB, Selander N. A redox-economical synthesis of trifluoromethylated enamides with the Langlois reagent. Org Biomol Chem 2018; 15:1771-1775. [PMID: 28155956 DOI: 10.1039/c7ob00203c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A redox-economical strategy for the synthesis of trifluoromethylated enamides using copper catalysis is reported. The reaction employs the inexpensive Langlois reagent (CF3SO2Na) and takes place without the need of an external oxidant. The trifluoromethylated enamide products can easily be converted into the corresponding ketone, saturated amide or oxazole.
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Affiliation(s)
- Hai-Bin Yang
- Department of Organic Chemistry Stockholm University, Arrhenius Laboratory, SE-106 91 Stockholm, Sweden.
| | - Nicklas Selander
- Department of Organic Chemistry Stockholm University, Arrhenius Laboratory, SE-106 91 Stockholm, Sweden.
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32
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Guo X, Yang X, Qin M, Liu Y, Yang Y, Chen B. Copper-Catalyzed Cyclization of Ketoxime Carboxylates and N
-Aryl Glycine Esters for the Synthesis of Pyridines. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700703] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xin Guo
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
| | - Xueying Yang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
| | - Mingda Qin
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
| | - Yafeng Liu
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
| | - Yuting Yang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China), E-mai
- Zhongwei High-tech Institute of Lanzhou University; Zhongwei Ningxia 755500 China
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33
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Shimbayashi T, Okamoto K, Ohe K. Iron-Catalyzed Aminative Cyclization/Intermolecular Homolytic Aromatic Substitution Using Oxime Esters and Simple Arenes. Chem Asian J 2018; 13:395-399. [DOI: 10.1002/asia.201701634] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/12/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Takuya Shimbayashi
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
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34
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Zhao MN, Zhang W, Wang XC, Zhang Y, Yang DS, Guan ZH. Modular 2,3-diaryl-2H-azirine synthesis from ketoxime acetates via Cs2CO3-mediated cyclization. Org Biomol Chem 2018; 16:4333-4337. [DOI: 10.1039/c8ob00923f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A practical and effective Cs2CO3-mediated cyclization of ketoxime acetates for the synthesis of 2H-azirines has been developed.
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Affiliation(s)
- Mi-Na Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Wei Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Xu-Cai Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Ying Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - De-Suo Yang
- Shaanxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji
- P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
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35
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Shen MH, Ren XT, Pan YP, Xu HD. Iridium catalyzed fragmentation/cyclization of N-butynyl 4,4-dimethylisoxazolidine-3,5-diones: a unique access to multiply substituted pyrroles. Org Chem Front 2018. [DOI: 10.1039/c7qo00698e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel protocol for the synthesis of multiply substituted pyrroles has been developed through the iridium catalyzed fragmentation/cyclization of N-butynyl 4,4-dimethylisoxazolidine-3,5-diones in hot ethanol.
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Affiliation(s)
- Mei-Hua Shen
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou
- China
| | - Xin-Tao Ren
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou
- China
| | - Ying-Peng Pan
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou
- China
| | - Hua-Dong Xu
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou
- China
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36
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Yonekura K, Iketani Y, Sekine M, Tani T, Matsui F, Kamakura D, Tsuchimoto T. Zinc-Catalyzed Dehydrogenative Silylation of Indoles. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00382] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyohei Yonekura
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Yoshihiko Iketani
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Masaru Sekine
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Tomohiro Tani
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Fumiya Matsui
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Daiki Kamakura
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry,
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
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37
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Tan WW, Ong YJ, Yoshikai N. Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines. Angew Chem Int Ed Engl 2017; 56:8240-8244. [DOI: 10.1002/anie.201704378] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Wei Wen Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yew Jin Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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38
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Tan WW, Ong YJ, Yoshikai N. Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704378] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Wen Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yew Jin Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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39
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40
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Wang S, Guo YQ, Ren ZH, Wang YY, Guan ZH. K 2CO 3-Mediated Cyclization and Rearrangement of γ,δ-Alkynyl Oximes To Form Pyridols. Org Lett 2017; 19:1574-1577. [PMID: 28290703 DOI: 10.1021/acs.orglett.7b00389] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel K2CO3-mediated cyclization and rearrangement of γ,δ-alkynyl oximes for the synthesis of pyridols is described. The process accomplishes an efficient [1,3] rearrangement of the O-vinyl oxime intermediate which is in situ generated from the intramolecular nucleophilic addition of γ,δ-alkynyl oximes. The reaction employs readily accessible starting materials, tolerates a wide range of functional groups, and gives a variety of synthetically challenging pyridols in good yields.
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Affiliation(s)
- Shun Wang
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Yong-Qiang Guo
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
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41
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Li J, Hu Y, Zhang D, Liu Q, Dong Y, Liu H. Transition Metal-Catalyzed Reactions Involving Oximes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600807] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Li
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Yitian Hu
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Daopeng Zhang
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Qing Liu
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Yunhui Dong
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Hui Liu
- School of Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 People's Republic of China
- College of Materials Science and Engineering; Hunan University; Changsha, Hunan 410082 People's Republic of China
- Engineering Research Center of Textile Chemicals &; Dyeing and Finishing of Shandong University of Technology; Zibo 255049 People's Republic of China
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42
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Yang HB, Selander N. Divergent Iron-Catalyzed Coupling ofO-Acyloximes with Silyl Enol Ethers. Chemistry 2017; 23:1779-1783. [DOI: 10.1002/chem.201605636] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/13/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Hai-Bin Yang
- Department of Organic Chemistry; Stockholm University, Arrhenius Laboratory; 106 91 Stockholm Sweden
| | - Nicklas Selander
- Department of Organic Chemistry; Stockholm University, Arrhenius Laboratory; 106 91 Stockholm Sweden
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43
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Takahashi H, Kodama S, Ishii Y. Direct transformation of 2-acetylpyridine oxime esters into α-oxygenated imines in an Ir(iii) complex. Dalton Trans 2017; 46:12032-12035. [DOI: 10.1039/c7dt02528a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Acetylpyridine oxime esters are transformed into the corresponding α-oxygenated imines in an Ir(iii) complex under mild conditions.
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Affiliation(s)
- Hiroyuki Takahashi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
| | - Shintaro Kodama
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
| | - Youichi Ishii
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
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44
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Zhao MN, Yu L, Mo NF, Ren ZH, Wang YY, Guan ZH. Synthesis of tetrasubstituted symmetrical pyridines by iron-catalyzed cyclization of ketoxime acetates. Org Chem Front 2017. [DOI: 10.1039/c6qo00809g] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A novel Fe-catalyzed cyclization of ketoxime carboxylates and methyl carbon on N,N-dimethylaniline for the synthesis of 2,3,5,6-tetrasubstituted symmetrical pyridines was developed.
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Affiliation(s)
- Mi-Na Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Le Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Nan-Fang Mo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
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45
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Usman M, Ren ZH, Wang YY, Guan ZH. A copper-catalyzed reaction of oximes with diisopropyl azodicarboxylate: an alternative method for the synthesis of oxime carbonates. Org Biomol Chem 2017; 15:1091-1095. [DOI: 10.1039/c6ob02627c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A Cu-catalyzed protocol is described for the transformation of oximes to the corresponding carbonate derivatives.
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Affiliation(s)
- Muhammad Usman
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science Northwest University
- Xi'an 710127
- P.R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science Northwest University
- Xi'an 710127
- P.R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science Northwest University
- Xi'an 710127
- P.R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science Northwest University
- Xi'an 710127
- P.R. China
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46
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Gao P, Wang J, Bai ZJ, Shen L, Yan YY, Yang DS, Fan MJ, Guan ZH. Synthesis of Polycarbonyl Pyrroles via K2S2O8-Mediated Oxidative Cyclization of Enamines. Org Lett 2016; 18:6074-6077. [DOI: 10.1021/acs.orglett.6b03060] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Peng Gao
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Juan Wang
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Zi-Jing Bai
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Li Shen
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Yun-Yun Yan
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - De-Suo Yang
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Ming-Jin Fan
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
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47
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Zhang Z, Li J, Huang G, Sun K, Zhang G, Ma N, Liu Q, Liu T. Copper(I)-Catalyzed IntramolecularN-NCoupling of CyclopropylO-Acyl Ketoximes: Synthesis of Spiro-fused Pyrazolin-5-ones. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600479] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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48
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Gregorić T, Sedić M, Grbčić P, Tomljenović Paravić A, Kraljević Pavelić S, Cetina M, Vianello R, Raić-Malić S. Novel pyrimidine-2,4-dione-1,2,3-triazole and furo[2,3-d]pyrimidine-2-one-1,2,3-triazole hybrids as potential anti-cancer agents: Synthesis, computational and X-ray analysis and biological evaluation. Eur J Med Chem 2016; 125:1247-1267. [PMID: 27875779 DOI: 10.1016/j.ejmech.2016.11.028] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/10/2016] [Accepted: 11/12/2016] [Indexed: 12/22/2022]
Abstract
Regioselective 1,4-disubstituted 1,2,3-triazole tethered pyrimidine-2,4-dione derivatives (5-23) were successfully prepared by the copper(I)-catalyzed click chemistry. While known palladium/copper-cocatalyzed method based on Sonogashira cross-coupling followed by the intramolecular 5-endo-dig ring closure generated novel 6-alkylfuro[2,3-d]pyrimidine-2-one-1,2,3-triazole hybrids (24b-37b), a small library of their 5-alkylethynyl analogs (24a-37a) was synthesized and described for the first time by tandem terminal alkyne dimerization and subsequent 5-endo-trig cyclization, which was additionally corroborated with computational and X-ray crystal structure analyses. The nature of substituents on alkynes and thereof homocoupled 1,3-diynes predominantly influenced the ratio of the formed products in both pathways. In vitro antiproliferative activity of prepared compounds evaluated on five human cancer cell lines revealed that N,N-1,3-bis-(1,2,3-triazole)-5-bromouracil (5-7) and 5,6-disubstituted furo[2,3-d]pyrimidine-2-one-1,2,3-triazole 34a hybrids exhibited the most pronounced cytostatic acitivities against hepatocellular carcinoma (HepG2) and cervical carcinoma (HeLa) cells with higher potencies than the reference drug 5-fluorouracil. Cytostatic effect of pyrimidine-2,4-dione-1,2,3-triazole hybrid 7 in HepG2 cells could be attributed to the Wee-1 kinase inhibition and abolishment of sphingolipid signaling mediated by acid ceramidase and sphingosine kinase 1. Importantly, this compound proved to be a non-mitochondrial toxicant, which makes it a promising candidate for further lead optimization and development of a new and more efficient agent for the treatment of hepatocellular carcinoma.
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Affiliation(s)
- Tomislav Gregorić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Department of Organic Chemistry, Marulićev Trg 20, HR-10000 Zagreb, Croatia
| | - Mirela Sedić
- University of Rijeka, Department of Biotechnology, Radmile Matejčić 2, HR-51000 Rijeka, Croatia; University of Rijeka, Centre for High-throughput Technologies, Radmile Matejčić 2, HR-51000 Rijeka, Croatia.
| | - Petra Grbčić
- University of Rijeka, Department of Biotechnology, Radmile Matejčić 2, HR-51000 Rijeka, Croatia
| | | | - Sandra Kraljević Pavelić
- University of Rijeka, Department of Biotechnology, Radmile Matejčić 2, HR-51000 Rijeka, Croatia; University of Rijeka, Centre for High-throughput Technologies, Radmile Matejčić 2, HR-51000 Rijeka, Croatia
| | - Mario Cetina
- University of Zagreb, Faculty of Textile Technology, Department of Applied Chemistry, Prilaz Baruna Filipovića 28a, HR-10000 Zagreb, Croatia
| | - Robert Vianello
- Computational Organic Chemistry and Biochemistry Group, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia.
| | - Silvana Raić-Malić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Department of Organic Chemistry, Marulićev Trg 20, HR-10000 Zagreb, Croatia.
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49
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Zhou Y, Bao X. DFT Study of Pd(0)-Promoted Intermolecular C-H Amination with O-Benzoyl Hydroxylamines. Org Lett 2016; 18:4506-9. [PMID: 27573977 DOI: 10.1021/acs.orglett.6b02093] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Computational studies were carried out to explore the mechanism of Pd-catalyzed intermolecular C-H amination with O-benzoyl hydroxylamines in which both Pd(0) and Pd(II) catalysts are effective. For the Pd(0)-catalyzed reaction, the generally assumed Pd(0)/Pd(II) catalytic cycle might not be feasible. Instead, Pd(0), being essentially a catalyst precursor, could be oxidized to Pd(II), and the C-H amination proceeds through the Pd(II)/Pd(IV) catalytic cycle.
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Affiliation(s)
- Yunfei Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
| | - Xiaoguang Bao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
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50
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Poelma SO, Burnett GL, Discekici EH, Mattson KM, Treat NJ, Luo Y, Hudson ZM, Shankel SL, Clark PG, Kramer JW, Hawker CJ, Read de Alaniz J. Chemoselective Radical Dehalogenation and C-C Bond Formation on Aryl Halide Substrates Using Organic Photoredox Catalysts. J Org Chem 2016; 81:7155-60. [PMID: 27276418 DOI: 10.1021/acs.joc.6b01034] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite the number of methods available for dehalogenation and carbon-carbon bond formation using aryl halides, strategies that provide chemoselectivity for systems bearing multiple carbon-halogen bonds are still needed. Herein, we report the ability to tune the reduction potential of metal-free phenothiazine-based photoredox catalysts and demonstrate the application of these catalysts for chemoselective carbon-halogen bond activation to achieve C-C cross-coupling reactions as well as reductive dehalogenations. This procedure works both for conjugated polyhalides as well as unconjugated substrates. We further illustrate the usefulness of this protocol by intramolecular cyclization of a pyrrole substrate, an advanced building block for a family of natural products known to exhibit biological activity.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Paul G Clark
- The Dow Chemical Company , Midland, Michigan 48674, United States
| | - John W Kramer
- The Dow Chemical Company , Midland, Michigan 48674, United States
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