1
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Chutia K, Sarmah M, Gogoi P. Substituted Isocoumarins: An Assemble of Synthetic Strategies Towards 3-Substituted and 3,4-Disubstituted Isocoumarins. Chem Asian J 2023; 18:e202201240. [PMID: 36647281 DOI: 10.1002/asia.202201240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/18/2023]
Abstract
The versatility of isocoumarin frameworks offers the privilege to access many pharmacological targets. This unique heterocycle core present in many natural products and complex organic molecules contribute to medicinal chemistry as anti-cancer, anti-inflammatory and immunomodulatory agents. The attractive properties exhibited by its analogues urged the scientists to explore their synthetic analogues. In regard to the myriads of synthetic methodologies, we have compiled a review update covering all the articles that have been published towards the synthesis of 3-substituted and 3,4-disubstituted isocoumarins. Additionally, we have also highlighted a systematic survey of catalytic methods for their synthesis along with their scope towards diverse functionalizations and plausible mechanistic aspects.
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Affiliation(s)
- Kangkana Chutia
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., 201002, India
| | - Manashi Sarmah
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., 201002, India
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2
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3-Amino-4-(diphenylamino)-1H-2-benzopyran-1-one. MOLBANK 2022. [DOI: 10.3390/m1408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Various synthetic methodologies to obtain 3,4-diaminoisocumarin nucleus have been reported and described. However, mechanistic analysis based on experimental evidence is lacking. Herein, we report the synthesis of the novel 3-amino-4-(diphenylamino)-1H-2-benzopyran-1-one using a two-step methodology with a new mechanistic proposal to explain the formation of the latter based on previously reported precursors and the established conditions. This compound was afforded in 80% yield.
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3
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Wang L, Shao Y, Chen F, Qian P, Cheng J. Rhodium-Catalyzed Directing Group-Assisted Annulation of Arene C—H Bond with Vinylene Carbonate toward Isocoumarins. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202106023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Sayantika Bhakta M, Ghosh T. Gold‐Catalyzed Carboxylative Cyclization Reactions: Recent Advances. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000694] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Ms. Sayantika Bhakta
- Department of Applied Sciences MaulanaAbulKalam Azad University of Technology, West Bengal Simhat, Haringhata- 741249 Nadia, West Bengal India
| | - Tapas Ghosh
- Department of Applied Sciences MaulanaAbulKalam Azad University of Technology, West Bengal Simhat, Haringhata- 741249 Nadia, West Bengal India
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5
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Dai Y, Li X, Liu B. Rh(III)-Catalyzed Efficient Synthesis of Isocoumarins from Cyclohexanediones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Shabir G, Saeed A, El-Seedi HR. Natural isocoumarins: Structural styles and biological activities, the revelations carry on …. PHYTOCHEMISTRY 2021; 181:112568. [PMID: 33166749 DOI: 10.1016/j.phytochem.2020.112568] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/17/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Isocoumarins and dihydroisocoumarins are lactonic phytochemicals plentiful in microbes and higher plants. These are an amazing small scaffolds consecrated with all types of pharmacological applications. Our previous review covered the period 2000-2016, documenting the then known natural products of this class; the current article is a critical account of discovery of known as well as undescribed structural types and pharmacological activities reported in the course of 2016-2020. The classification revealed in our previous review based on the biogenetic origin is further buttressed by discovery of new members of each class and some new structural types hitherto unknown have also been identified. Similarly, the biological activities and SAR conclusions identified were found to be valid as well, nonetheless with new accompaniments. The most recent available literature on the structural diversity and biological activity of these natural products has been included. The information documented in this article are collected from scientific journals, books, electronic search engines and scientific databases.
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Affiliation(s)
- Ghulam Shabir
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
| | - Hesham R El-Seedi
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China; Al-Rayan Colleges, Medina, 42541, Saudi Arabia
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7
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Pradhan TR, Park JK. An Overview of Water‐Mediated Alkyne Functionalization by Neighboring Group Participation of Carbonyl Groups. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tapas R. Pradhan
- Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 46241 Korea
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8
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Palladium and Copper Catalyzed Sonogashira cross Coupling an Excellent Methodology for C-C Bond Formation over 17 Years: A Review. Catalysts 2020. [DOI: 10.3390/catal10040443] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Sonogashira coupling involves coupling of vinyl/aryl halides with terminal acetylenes catalyzed by transition metals, especially palladium and copper. This is a well known reaction in organic synthesis and plays a role in sp2-sp C-C bond formations. This cross coupling was used in synthesis of natural products, biologically active molecules, heterocycles, dendrimers, conjugated polymers and organic complexes. This review paper focuses on developments in the palladium and copper catalyzed Sonogashira cross coupling achieved in recent years concerning substrates, different catalyst systems and reaction conditions.
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Mallampudi NA, Choudhury UM, Mohapatra DK. Total Synthesis of (−)-Citreoisocoumarin, (−)-Citreoisocoumarinol, (−)-12-epi-Citreoisocoumarinol, and (−)-Mucorisocoumarins A and B Using a Gold(I)-Catalyzed Cyclization Strategy. J Org Chem 2020; 85:4122-4129. [DOI: 10.1021/acs.joc.9b03278] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- N. Arjunreddy Mallampudi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Utkal Mani Choudhury
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Debendra K. Mohapatra
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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10
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Luo MJ, Zhang TT, Cai FJ, Li JH, He DL. Decarboxylative [4+2] annulation of arylglyoxylic acids with internal alkynes using the anodic ruthenium catalysis. Chem Commun (Camb) 2019; 55:7251-7254. [PMID: 31168528 DOI: 10.1039/c9cc03210j] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A new electrochemical decarboxylative [4+2] annulation of arylglyoxylic acids with internal alkynes involving C-H functionalization by means of a cooperative anode and ruthenium catalysis is presented. This reaction represents a mechanistically novel strategy as an ideal supplement to the decarboxylative [4+2] annulation methodology by employing an electrooxidative process to avoid the use of an additional external oxidizing reagent and utilizing H2O as the carboxyl oxygen atom source to be engaged in the synthesis of 1H-isochromen-1-ones.
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Affiliation(s)
- Mu-Jia Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China. and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ting-Ting Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Fang-Jun Cai
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China. and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - De-Liang He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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11
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Prasanna GL, Kumar Abbaraju VDN, Bharath Y, Basaveswara Rao MV, Pal M. Ultrasound Assisted Synthesis of 3-(het)aryl Isocoumarin Derivatives and their in vitro Pharmacological Evaluation. Mini Rev Med Chem 2019; 19:842-850. [PMID: 30706808 DOI: 10.2174/1389557519666190130163708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/22/2018] [Accepted: 01/22/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND In view of numerous biological activities of 3-substituted isocoumarins a number of analogues based on this scaffold were synthesized for their in vitro pharmacological evaluation. METHODS The syntheses of 3-substituted isocoumarins were carried out via a Pd/C-catalyzed Suzuki- Miyaura coupling of 3-chloroisochromen-1-one with a range of boronic acid derivatives. This C-C bond forming reaction was facilitated by ultrasound irradiation to afford the desired products in good yields. A number of 3-(het)aryl isocoumarin derivatives were prepared by using this methodology and subsequently tested for their TNF-α inhibitory properties in vitro followed by cytotoxicities via the MTT assay. RESULTS Several compounds showed inhibition of TNF-α with one compound showing an IC50 value of 9.01±1.25 µM. Three compounds also showed promising cytotoxic properties against two cancer cell lines with IC50 ~ 0.9-2.7 µM. CONCLUSION The isocoumarin framework could be an effective template for the design and discovery of new inhibitor of TNF-α for the potential treatment of related diseases.
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Affiliation(s)
- Gutta Lakshmi Prasanna
- Department of Chemistry, Krishna University, Machilipatnam-521001, Andhra Pradesh, India
| | | | - Yarlagadda Bharath
- Department of Chemistry, Krishna University, Machilipatnam-521001, Andhra Pradesh, India
| | | | - Manojit Pal
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
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12
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Rh(III)-catalyzed C-H activation of primary benzamides and tandem cyclization with cyclic 2-diazo-1,3-diketones for the synthesis of isocoumarins. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Yuanqiang Zhu, Wang Y, Liu X, Mo X. Au(I) and Au(III)-Catalyzed Mechanism of the Cyclization Reaction of 3-(Ethynylamino)-1,3-diphenylprop-2-en-1-one. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418100394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Liu X, Chen G, Zhou Y, Liu P. Palladium/copper-catalyzed tandem Sonogashira coupling/lactonization of methyl 2-(2′,2′-dibromovinyl)benzoate with terminal alkynes: Facile access to 3-alkynyl isocoumarins. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Habert L, Retailleau P, Gillaizeau I. Rapid synthesis of 3-amino isocoumarin derivatives from ynamides. Org Biomol Chem 2018; 16:7351-7355. [DOI: 10.1039/c8ob02305k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A novel and efficient fast synthesis of 3-amino isocoumarins in good to excellent yields is reported.
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Affiliation(s)
- Loïc Habert
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- Pôle de chimie
- 45100 Orléans
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles
- CNRS
- 91198 Gif-sur-Yvette Cedex
- France
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- Pôle de chimie
- 45100 Orléans
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16
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Gianni J, Pirovano V, Abbiati G. Silver triflate/p-TSA co-catalysed synthesis of 3-substituted isocoumarins from 2-alkynylbenzoates. Org Biomol Chem 2018; 16:3213-3219. [DOI: 10.1039/c8ob00436f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A well-balanced composition of catalytic system partners makes the approach cheap, quick, regioselective, mild, general, scalable and high-yielding.
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Affiliation(s)
- Jonathan Gianni
- Dipartimento di Scienze Farmaceutiche
- Sezione di Chimica Generale e Organica “Alessandro Marchesini”
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Valentina Pirovano
- Dipartimento di Scienze Farmaceutiche
- Sezione di Chimica Generale e Organica “Alessandro Marchesini”
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Giorgio Abbiati
- Dipartimento di Scienze Farmaceutiche
- Sezione di Chimica Generale e Organica “Alessandro Marchesini”
- Università degli Studi di Milano
- 20133 Milano
- Italy
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17
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Mayakrishnan S, Arun Y, Uma Maheswari N, Perumal PT. Rhodium(iii)-catalysed decarbonylative annulation through C–H activation: expedient access to aminoisocoumarins by weak coordination. Chem Commun (Camb) 2018; 54:11889-11892. [DOI: 10.1039/c8cc07167e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Rh-Catalysed decarbonylative annulation of isatoic anhydrides with alkynes through C–H activation for the direct synthesis of 8-aminoisocoumarins has been developed.
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Affiliation(s)
- Sivakalai Mayakrishnan
- Organic & Bioorganic Chemistry Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
| | - Yuvaraj Arun
- Organic & Bioorganic Chemistry Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
- Institute for Drug Research
| | - Narayanan Uma Maheswari
- Organic & Bioorganic Chemistry Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
| | - Paramasivan Thirumalai Perumal
- Organic & Bioorganic Chemistry Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
- Department of Chemistry
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18
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Lin F, Shen Y, Zhang Y, Sun Y, Liu J, Duttwyler S. Fusing Carborane Carboxylic Acids with Alkynes: 3D Analogues of Isocoumarins via Regioselective B−H Activation. Chemistry 2017; 24:551-555. [DOI: 10.1002/chem.201703802] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Furong Lin
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Yunjun Shen
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Yuanbin Zhang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Yuji Sun
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Jiyong Liu
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
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19
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Casnati A, Maggi R, Maestri G, Della Ca’ N, Motti E. Pd-Catalyzed/Iodide-Promoted α-Arylation of Ketones for the Regioselective Synthesis of Isocoumarins. J Org Chem 2017; 82:8296-8303. [DOI: 10.1021/acs.joc.7b01355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alessandra Casnati
- Dipartimento di
Scienze Chimiche,
della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, Italy
| | - Raimondo Maggi
- Dipartimento di
Scienze Chimiche,
della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, Italy
| | - Giovanni Maestri
- Dipartimento di
Scienze Chimiche,
della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, Italy
| | - Nicola Della Ca’
- Dipartimento di
Scienze Chimiche,
della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, Italy
| | - Elena Motti
- Dipartimento di
Scienze Chimiche,
della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, Italy
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20
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Mallampudi NA, Reddy GS, Maity S, Mohapatra DK. Gold(I)-Catalyzed Cyclization for the Synthesis of 8-Hydroxy-3- substituted Isocoumarins: Total Synthesis of Exserolide F. Org Lett 2017; 19:2074-2077. [DOI: 10.1021/acs.orglett.7b00673] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- N. Arjunreddy Mallampudi
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - G. Sudhakar Reddy
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Saurabh Maity
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Debendra K. Mohapatra
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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21
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Saeed A, Haroon M, Muhammad F, Larik FA, Hesham ES, Channar PA. Advances in transition-metal-catalyzed synthesis of 3-substituted isocoumarins. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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22
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Efficient synthesis of 1-oxo-3-aryl-1H-isochromene-4-carbaldehydes from enaminoketones of 2′-carboxamidodeoxybenzoins. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Chen X, Liu Y. Copper-catalyzed one-pot reactions of acetyl chloride, o-halobenzoic acids and Wittig reagents toward 3-methyl isocoumarin synthesis. RSC Adv 2017. [DOI: 10.1039/c7ra06707k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The synthesis of 3-methtyl isocoumarins is achieved via the copper-catalyzed one-pot reactions of Wittig reagents, acetyl chloride and o-iodobenzoic acids via tandem construction of CC, C–O and C–C bonds.
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Affiliation(s)
- Xuwen Chen
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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