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Tang Y, Dai K, Xiang X, Yang Y, Li M. Synthesis of ester-functionalized indolo[2,1- a]isoquinolines via iron-catalyzed radical cascade cyclization of 2-aryl- N-acryloyl indoles with carbazates. Org Biomol Chem 2022; 20:5704-5711. [PMID: 35838169 DOI: 10.1039/d2ob00934j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An FeCl2·4H2O-catalyzed oxidative alkoxycarbonylation/cyclization reaction of 2-aryl-N-acryloyl indoles with carbazates leading to ester-functionalized indolo[2,1-a]isoquinoline derivatives has been developed. The reaction features mild reaction conditions and broad functional group tolerance. Moreover, the ester group could be easily converted to the corresponding free acid and alcohol, and has high potential applications in organic and pharmaceutical synthesis. A radical pathway was proposed to explain this experiment.
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Affiliation(s)
- Yucai Tang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Kaiming Dai
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Xingxian Xiang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Yiting Yang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Min Li
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
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2
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Zhang C, Luo J, Zhang J, Chen L, Zhu X, Guo M, Shen C, Li Z, Wang W. Tf
2
O‐mediated Regioselective C(sp
2
)−H Sulfenylation of Enaminones Using Methyl Sulfoxides as Sulfur Sources. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Changyuan Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jian Luo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Jiantao Zhang
- College of Chemistry Guangdong University of Petrochemical Technology Guandu Road Maoming 525000 P. R. China
| | - Lulu Chen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Xuncheng Zhu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Mengping Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Chan Shen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Zeng Li
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
| | - Wei Wang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology College of Chemistry and Bio-engineering Yichun University 576 Xuefu Road Yichun 336000 P. R. China
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4
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Zhang C, Guo H, Chen L, Zhang J, Guo M, Zhu X, Shen C, Li Z. One-Pot Synthesis of Symmetrical and Asymmetrical 3-Amino Diynes via Cu(I)-Catalyzed Reaction of Enaminones with Terminal Alkynes. Org Lett 2021; 23:8169-8173. [PMID: 34636564 DOI: 10.1021/acs.orglett.1c02848] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An economical and efficient protocol for the direct construction of amino skipped diynes through the Cu(I)-catalyzed reaction of enaminones and terminal alkynes has been described. Different kinds of symmetrical and asymmetrical 3-amino diynes could be obtained in up to 83% yield through a one-pot reaction under mild conditions.
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Affiliation(s)
- Changyuan Zhang
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Huosheng Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Lulu Chen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Jiantao Zhang
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Mengping Guo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Xuncheng Zhu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Chan Shen
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
| | - Zeng Li
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, P.R. China
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5
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Jannapu Reddy R, Haritha Kumari A, Kumar JJ. Recent advances in the synthesis and applications of β-keto sulfones: new prospects for the synthesis of β-keto thiosulfones. Org Biomol Chem 2021; 19:3087-3118. [PMID: 33885563 DOI: 10.1039/d1ob00111f] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This review mainly focuses on recent developments in the preparation of β-keto sulfones and their extensive synthetic applications. New prospects for the synthesis of β-keto thiosulfones have also been highlighted. Over the last decade, there has been exponential growth in the direct construction of β-keto sulfones using a wide variety of keto and sulfonyl precursors. Of note, the most promising photoredox transformations and electrochemical synthesis methods of β-keto sulfones are also presented. Moreover, β-keto sulfones are versatile building blocks in organic synthesis due to their three essential functional groups: sulfonyl, carbonyl, and active methylene moieties. The convenient preparation of β-keto sulfones allows the synthesis of many valuable carbocyclic and heterocyclic compounds, and the effortless removal of the sulfonyl moiety via transformations is supported. The chemistry of β-keto sulfones (2013 to present) can be divided into several sections based on the sulfonyl surrogates, and ubiquitous synthetic strategies were systematically outlined.
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Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India.
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6
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Synthesis of sulfonylated benzimidazo[2,1-a]isoquinolin-6(5H)-ones via I2O5-induced radical relay addition/cyclization of activated alkenes with sulfonylhydrazides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Dong D, Han Q, Yang S, Song J, Li N, Wang Z, Xu X. Recent Progress in Sulfonylation via Radical Reaction with Sodium Sulfinates, Sulfinic Acids, Sulfonyl Chlorides or Sulfonyl Hydrazides. ChemistrySelect 2020. [DOI: 10.1002/slct.202003650] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dao‐Qing Dong
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Qing‐Qing Han
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Shao‐Hui Yang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Jing‐Cheng Song
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Na Li
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Zu‐Li Wang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 P.R. China
| | - Xin‐Ming Xu
- College ofChemistry and Chemical Engineering Yantai University Yantai 264005 P.R. China
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8
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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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9
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Zhao S, Chen K, Zhang L, Yang W, Huang D. Sulfonyl Hydrazides in Organic Synthesis: A Review of Recent Studies. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000466] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shuangte Zhao
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Kaijun Chen
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Ling Zhang
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Weiguang Yang
- The Marine Biomedical Research InstituteGuangdong Medical University Zhanjiang 524023, Guangdong Province
| | - Dayun Huang
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
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10
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Wang Y, Hu B, Zhang Q, Zhao S, Zhao Y, Zhang B, Yu F. Selectfluor-triggered fluorination/cyclization of o-hydroxyarylenaminones: A facile access to 3-fluoro-chromones. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820923084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A fast and efficient Selectfluor-triggered fluorination/cyclization reaction of o-hydroxyarylenaminones has been successfully developed. The reaction successfully provides an expedient method for the synthesis of 3-fluoro-chromones promoted by potassium carbonate, which shows readily available starting materials and is easy to operate. In addition, a plausible mechanism of this tandem cyclization reaction was proposed where 4 H-chromen-4-one, 2-(dimethylamino)-3,3-difluorochroman-4-one, and 3,3-difluoro-2-hydroxychroman-4-one were not found to be the reactive intermediates. Moreover, these novel compounds have been obtained in moderate to good yields, and their structures have been confirmed by 1H NMR, 13C NMR, and high-resolution mass spectrometry.
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Affiliation(s)
- Yanqin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Biao Hu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Qiaohe Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Siyun Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Yuxuan Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Biao Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
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11
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Zhang Q, Hu B, Zhao Y, Zhao S, Wang Y, Zhang B, Yan S, Yu F. Synthesis of N
-Sulfonyl Pyrazoles Through Cyclization Reactions of Sulfonyl Hydrazines with Enaminones Promoted by p
-TSA. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901886] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qiaohe Zhang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Biao Hu
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Yuxuan Zhao
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Siyun Zhao
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Yanqin Wang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Biao Zhang
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
| | - Shengjiao Yan
- School of Chemical Science and Technology; Yunnan University; 650500 Kunming P. R. China
| | - Fuchao Yu
- Faculty of Life Science and Technology; Kunming University of Science and Technology; 650504 Kunming P. R. China
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12
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Tian L, Guo Y, Wei L, Wan J, Sheng S. Thermo‐Induced Free‐Radical Cleavage of Enaminone C=C Double Bond for α‐Acyloxyl Ketone Synthesis. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900373] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lihong Tian
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Yanhui Guo
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Li Wei
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Shouri Sheng
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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