1
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He YW, Huang L, Huang K, Yan CG, Sun J, Han Y. Construction of Diverse Fused Chromene Frameworks via Isocyanide-Based Three-Component Reaction. J Org Chem 2024; 89:10854-10866. [PMID: 38993063 DOI: 10.1021/acs.joc.4c01142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
A convenient synthetic protocol for diverse fused chromenes was successfully developed by a three-component reaction of alkyl isocyanides, dialkyl but-2-ynedioates, and various cyclic 1,3-dipolarophiles containing o-hydroxyphenyl group. In the absence of any catalyst, the three-component reaction of alkyl isocyanides, dialkyl but-2-ynedioates, and 3-(o-hydroxyarylidene)indolin-2-ones in tetrahydrofuran at 60 °C resulted in unique functionalized spiro[cyclobuta[c]chromene-1,3'-indolines] in good yields and with high diastereoselectivity. However, the similar three-component reaction with 2-(5-halo-2-hydroxyarylidene)indolin-2-ones afforded unexpected chain products in satisfactory yields. In addition, the three-component reaction of alkyl isocyanides, dialkyl but-2-ynedioates, and 2-(o-hydroxyarylidene)-1,3-indanediones in tetrahydrofuran at 60 °C resulted in complex indeno[2',1':5,6]pyrano[3,4-c]chromene derivatives in high yields and with high diastereoselectivity.
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Affiliation(s)
- Yu-Wei He
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Li Huang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Kun Huang
- Jiangsu Lianhuan Pharmaceutical Co., Ltd., Yangzhou 225000, China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | | | - Ying Han
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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2
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Kyndiah L, Sarkar FK, Gajurel S, Sarkar R, Anal JMH, Pal AK. Pd@GO catalyzed stereo- and regio-selective addition of arenes to alkynes and synthesis of coumarins via C-H functionalization. Org Biomol Chem 2023; 21:7928-7934. [PMID: 37766675 DOI: 10.1039/d3ob01237a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
A stereo- and regio-selective addition of arenes to alkynes via C-H bond functionalization has been developed using palladium nanoparticles supported on graphite oxide (Pd@GO) as the reusable catalyst. The prepared catalyst was characterized by various spectroscopic techniques such as FT-IR, TEM, SEM, EDX, P-XRD, and XPS analysis. The thermal stability of the catalyst was established by TGA. The C-H functionalized products were obtained in good to excellent yields (69-92%) at room temperature. The methodology further extended to the synthesis of biologically and pharmaceutically important coumarin molecules from phenols and alkynes. Good to excellent yields of the coumarins (74-92%) were obtained. After the reaction, the catalyst was separated by centrifugation followed by filtration. The recovered catalyst was washed and reused up to five cycles. The advantages of this method are the simple procedure of the catalyst preparation, high catalytic efficiency, high selectivity, good functional group tolerance, low catalyst loading, and gram-scale synthesis.
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Affiliation(s)
- Lenida Kyndiah
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India.
| | - Fillip Kumar Sarkar
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India.
| | - Sushmita Gajurel
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India.
| | - Rajib Sarkar
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India.
| | - Jasha Momo H Anal
- Natural Products & Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Canal Road, Jammu-180001, India
| | - Amarta Kumar Pal
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India.
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3
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Shekhar C, Satyanarayana G. Acid-Mediated Cascade Cyclization Pathway to Indeno[2,1- c]chromen-6(7 H)-ones. J Org Chem 2023; 88:13404-13417. [PMID: 37721969 DOI: 10.1021/acs.joc.3c01459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Developing mild and effective synthetic strategies for producing significant molecules starting from readily available starting materials is indispensable in organic synthesis. Herein, we present a triflic acid-driven dual cyclization pathway to produce functionalized indeno[2,1-c]chromen-6(7H)-ones from simple 2-formyl (or 2-acyl) cinnamate esters and phenols. Notably, this protocol enabled the construction of two C-C bonds and one C-O bond under metal-free reaction conditions via the activation of the unreactive ester moiety in a single pot. The isolation of intermediate indenol-ester might suggest self-intramolecular cycloaddition by the proximate double bond of the enoate ester with the o-carbonyl moiety, followed by an electrophilic attack with phenol and a subsequent cyclocondensation pathway. In addition, the photophysical properties have also been examined.
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Affiliation(s)
- Chander Shekhar
- Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502 284, India
| | - Gedu Satyanarayana
- Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502 284, India
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4
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Zhu ZQ, Wu TF, Pan HP, Peng JB, Ma AJ, Zhang XZ. Bismuth(III)-Catalyzed 1,8-Addition/Cyclization/Rearrangement of Propargylic para-Quinone Methides with 2-Vinylphenol: Synthesis of Indeno[2,1- c]chromenes. Org Lett 2023. [PMID: 36808990 DOI: 10.1021/acs.orglett.3c00179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The unique reactivity of in situ generated propargylic para-quinone methides as a new type of five-carbon synthon has been discovered by a novel bismuth(III)-catalyzed tandem annulation reaction. This 1,8-addition/cyclization/rearrangement cyclization cascade reaction is characterized by unusual structural reconstruction of 2-vinylphenol, involving cleavage of the C1'═C2' bond and formation of four new bonds. This method provides a convenient and mild approach to generate synthetically important functionalized indeno[2,1-c]chromenes. The mechanism of the reaction is proposed from several control experiments.
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Affiliation(s)
- Zhi-Qiang Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Teng-Fei Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
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5
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Yan CY, Wu ZW, He XY, Ma YH, Peng XR, Wang L, Yang QQ. Visible-Light-Induced Tandem Radical Brominative Addition/Cyclization of Activated Alkynes with CBr 4 for the Synthesis of 3-Bromocoumarins. J Org Chem 2023; 88:647-652. [PMID: 36480338 DOI: 10.1021/acs.joc.2c01721] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A visible-light-induced tandem radical brominative addition/spiro-cyclization/1,2-ester migration of activated alkynes with CBr4 is developed. This protocol features good functional group tolerance, operational simplicity, and mild reaction conditions without the use of catalysts and external additives, providing easy access to valuable 3-bromocoumarins in generally high yields.
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Affiliation(s)
- Chen-Yang Yan
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China
| | - Zheng-Wei Wu
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China
| | - Xiao-Yu He
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China
| | - Yu-Hong Ma
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China
| | - Xiao-Rong Peng
- GongAn County People's Hospital, No. 119, Chanling Avenue, Douhudi Town, Gongan County, Jingzhou, Hubei 434300, P. R. China
| | - Long Wang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China.,Hubei Three Gorges Laboratory, Yichang, Hubei 443007, P. R. China
| | - Qing-Qing Yang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, 8 Daxue Road, Yichang, Hubei 443002, P. R. China.,Hubei Three Gorges Laboratory, Yichang, Hubei 443007, P. R. China
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6
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Solvent-controlled photosensitized divergent C3-ethoxycarbonylmethylation/hydroxyalkylation of imidazo[1,2-a]pyridines with diethyl bromomalonate. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132988] [Citation(s) in RCA: 0] [Impact Index Per Article: 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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Moghadam Farid S, Seifinoferest B, Gholamhosseyni M, Larijani B, Mahdavi M. Modern metal-catalyzed and organocatalytic methods for synthesis of coumarin derivatives: a review. Org Biomol Chem 2022; 20:4846-4883. [PMID: 35642609 DOI: 10.1039/d2ob00491g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coumarin is an important pharmaceutical structural motif, abundantly found in numerous commonly used drugs. Compounds containing this core show a broad spectrum of medicinal properties and biological activities. The increasing importance and wide usages of coumarin derivatives have drawn attention to its synthetic methods, among which metal-catalyzed and organocatalytic methods have proved the most effective. Several metal-catalyzed and/or organocatalytic synthetic strategies for coumarin have been investigated and reported in recent decades. This review focuses on more recent reports on catalysis methods for synthesizing coumarin and coumarin-like structures (including light-mediated methods and nano-catalysts), exploring the mechanistic aspects, simplicity, efficiency, repeatability, and other advantages and disadvantages of these methods.
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Affiliation(s)
- Sara Moghadam Farid
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Behnoush Seifinoferest
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Maral Gholamhosseyni
- Department of Chemistry, College of Chemistry, University of Tehran, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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8
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Sharma D, Dhayalan V, Chatterjee R, Khatravath M, Dandela R. Recent Advances in the Synthesis of Coumarin and Its Derivatives by Using Aryl Propiolates. ChemistrySelect 2022. [DOI: 10.1002/slct.202104299] [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)
- Deepika Sharma
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology, Indian oil Odisha Campus,Kharagpur extension Centre Mouza, Samantpuri Bhubaneswar 751013, Odisha India
| | - Vasudevan Dhayalan
- Department of Chemistry National Institute of Technology Puducherry Karaikal 609609, Union Territory Puducherry India
| | - Rana Chatterjee
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology, Indian oil Odisha Campus,Kharagpur extension Centre Mouza, Samantpuri Bhubaneswar 751013, Odisha India
| | - Mahender Khatravath
- Department of Chemistry Central University of South Bihar Gaya, SH-7 Panchanpur Road Karhara, Post Fatehpur Gaya Bihar 824236 India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology, Indian oil Odisha Campus,Kharagpur extension Centre Mouza, Samantpuri Bhubaneswar 751013, Odisha India
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9
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Huang M, Tang J, Li N, Kim JK, Gong M, Zhang J, Li Y, Wu Y. A simple approach to C3-ethoxycarbonylmethylation of thiophenes/furans with diethyl bromomalonate. Org Biomol Chem 2022; 20:6459-6463. [DOI: 10.1039/d2ob00835a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient method to produce C3-malonated products was developed via a visible-light-induced radical reaction of 2-substituted thiophenes/furans with diethyl bromomalonate. The C3-ethoxycarbonylmethylation of 2-substituted thiophenes/furans exhibited broad substrate...
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10
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Wang F, Yu D, Chen Y, Sun J, Wang JY, Zhou MD. Cross-dehydrogenative Coupling of N-Aryl Tetrahydroisoquinolines Catalyzed by an Anthraquinone-containing Polymeric Photosensitizer. Chem Asian J 2021; 16:4087-4094. [PMID: 34668333 DOI: 10.1002/asia.202100978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/19/2021] [Indexed: 11/09/2022]
Abstract
This work reports the photocatalytic application of an anthraquinone-containing polymeric photosensitizer (AQ-PHEMA) in the visible light-induced cross-dehydrogenative-coupling of N-aryl tetrahydroisoquinolines with several nucleophiles, including nitromethane, 1-methyl-2-alkyl ketone and dialkyl (aryl) phosphine oxide. The results revealed that the reaction could be catalyzed by AQ-PHEMA efficiently to afford a series of 1-substituted-2-aryl-1,2,3,4-tetrahydroisoquinolines in good to excellent yields with nice substrate tolerance under aerobic conditions at room temperature. The practical application potential was also showcased by a gram-scale synthesis. More importantly, the utilization of AQ-PHEMA as a heterogeneous photosensitizer also showed nice recyclability and reusability of the catalyst, whereas AQ-PHEMA can be easily separated and reused for at least 8 times without significant loss of photocatalytic activity.
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Affiliation(s)
- Fei Wang
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
| | - Dan Yu
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
| | - Yang Chen
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
| | - Jing Sun
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
| | - Jing-Yun Wang
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
| | - Ming-Dong Zhou
- School of Petrochemical Engineering, Liaoning Petrochemical University, 113001, Dan Dong Road 1, Fushun, P. R. China
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11
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Xi J, Wu X, Huang M, Kim JK, Zhang J, Li Y, Wu Y. A visible-light-induced photocatalyst-free approach for C-3 dicarbonyl coumarin production. Chem Commun (Camb) 2021; 57:7308-7311. [PMID: 34223574 DOI: 10.1039/d1cc02399c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A mild and efficient visible-light-induced synthesis of C-3 dicarbonyl coumarins from 3-arylacetylene coumarins without a photocatalyst was reported. This iodide-mediated method exhibited broad substrate scope and good functional group tolerance, and a series of C-3 dicarbonyl coumarins were obtained in moderate to excellent yields. Based on the control experimental results, it was found that the visible-light-induced oxidation might be via both radical and ionic processes. Moreover, some synthesized compounds displayed high sensitivity to hydrogen peroxide (H2O2) with a low detection limit (DL, down to 0.149 μM).
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Affiliation(s)
- Jinhu Xi
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, China.
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12
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Affiliation(s)
- Jitender Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
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13
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Photogenerated electrophilic radicals for the umpolung of enolate chemistry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2021. [DOI: 10.1016/j.jphotochemrev.2020.100387] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Chan WC, Vinod JK, Koide K. Acetal Addition to Electron-Deficient Alkenes with Hydrogen Atom Transfer as a Radical Chain Propagation Step. J Org Chem 2021; 86:3674-3682. [DOI: 10.1021/acs.joc.0c03044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wei Chuen Chan
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Jincy K. Vinod
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Kazunori Koide
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
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15
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Chen Y, Lu F, Li R, Guan Z, He Y. Visible‐light‐mediated Synthesis of Bromo‐containing Azaspirotrienediones from
N
‐phenylpropynamides. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000728] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yuan Chen
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Fo‐Yun Lu
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Rui‐Xue Li
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Yan‐Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
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16
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Liu J, Huang HL, Wang C, Li Y, Li H, Hu H, He S, Tang H, Gao F. Visible-light-driven cascade radical cyclization toward the synthesis of α-carbonyl alkyl-substituted benzimidazo[2,1-a]isoquinolin-6(5H)-one derivatives. RSC Adv 2021; 11:29372-29375. [PMID: 35479569 PMCID: PMC9040576 DOI: 10.1039/d1ra05936j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/24/2021] [Indexed: 11/05/2022] Open
Abstract
A visible-light-driven cascade radical cyclization process of N-methacryloyl-2-phenylbenzimidazole has been established with α-carbonyl alkyl bromide. This protocol provides an efficient and practical method for the synthesis of various α-carbonyl alkyl-substituted benzimidazo[2,1-α]isoquinolin-6(5H)-ones in outstanding yields, mild reaction conditions and excellent functional group tolerance. A visible-light-driven radical cyclization method has been developed for synthesis of α-carbonyl alkyl-substituted benzimidazo[2,1-a]isoquinolin-6(5H)-ones. This reaction is characterized by excellent yields and good functional group tolerance.![]()
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Affiliation(s)
- Jing Liu
- Department of Chemistry, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Chen Wang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Yinghua Li
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Huaqiang Li
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Honggang Hu
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Shipeng He
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Hua Tang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
| | - Fei Gao
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, China
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17
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The light “on-off” stepwise one-pot method for 3,4-diaryl coumarins with potential AIE properties. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Wang X, Yang Y, Zhao Y, Wang S, Hu W, Li J, Wang Z, Yang F, Zhao J. Ynamide-Mediated Intermolecular Esterification. J Org Chem 2020; 85:6188-6194. [PMID: 32227863 DOI: 10.1021/acs.joc.0c00485] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An ynamide-mediated one-pot, two-step intermolecular esterification via the condensation of carboxylic acids with nucleophilic hydroxyl species was reported. A broad substrate scope with respect to carboxylic acids, alcohols, and phenols was observed. The α-acyloxyenamide intermediates formed by the addition of carboxylic acids to ynamides proved to be effective acylating reagents for the esterification of alcohol and phenol derivatives with the assistance of base catalysis. Notably, the racemization of the α-chiral center of carboxylic acids can be avoided.
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Affiliation(s)
- Xuewei Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yang Yang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yongli Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Sheng Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Wenchang Hu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jinmei Li
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Zihao Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Fengling Yang
- College of Sciences and Life Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467036, P. R. China
| | - Junfeng Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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19
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Huang HL, Du JY, Li QL, Gao F, Ma CL. Visible-Light-Promoted Cascade Radical Cyclization: Synthesis of Chroman-4-ones and Dihydroquinolin-4-ones. J Org Chem 2020; 85:3963-3972. [PMID: 32037828 DOI: 10.1021/acs.joc.9b03253] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel visible-light photoredox catalysis protocol for the effective and efficient synthesis of 3-substituted chroman-4-ones and 2,3-dihydroquinolin-4(1H)-ones via tandem radical addition/cyclization of alkenyl aldehydes has been described. This reaction features a broad substrate scope, mild reaction conditions, and good functional group tolerance character.
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Affiliation(s)
- Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Qian-Li Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Fei Gao
- Institude of Translation Medicine, Shanghai University, Shanghai, 2004444, China
| | - Chun-Lin Ma
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
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20
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Wu X, Jia M, Huang M, Kim JK, Zhao Z, Liu J, Xi J, Li Y, Wu Y. A visible-light-induced “on–off” one-pot synthesis of 3-arylacetylene coumarins with AIE properties. Org Biomol Chem 2020; 18:3346-3353. [DOI: 10.1039/d0ob00479k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A mild one-pot approach to 3-arylacetylene coumarins with potential AIE activities was developed via photosensitizer-free photocatalysis and thermocatalysis.
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Affiliation(s)
- Xinjie Wu
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| | - Ming Jia
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- P.R. China
| | - Mengmeng Huang
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| | - Jung Keun Kim
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| | - Zheng Zhao
- Department of Chemistry
- The Hong Kong University of Science and Technology
- P.R. China
| | - Junkai Liu
- Department of Chemistry
- The Hong Kong University of Science and Technology
- P.R. China
| | - Jinhu Xi
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| | - Yabo Li
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| | - Yangjie Wu
- College of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou
| |
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