1
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Dong ZB, Gong Z, Dou Q, Cheng B, Wang T. A decade update on the application of β-oxodithioesters in heterocyclic synthesis. Org Biomol Chem 2023; 21:6806-6829. [PMID: 37555699 DOI: 10.1039/d3ob00601h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The diverse synthesis of heterocyclic compounds has always been one of the popular subjects of organic chemistry. To this end, great efforts have been devoted to developing new reagents and establishing new strategies and methods concerning efficiency, selectivity and sustainability. β-Oxodithioesters and their enol tautomers (i.e., α-enolic dithioesters), as a class of simple and readily accessible sulfur-containing synthons, have been widely applied in the construction of various five- and six-membered heterocycles (e.g., thiophenes, thiopyrans, thiazoles, pyridines and quinolines) and other useful open-chain frameworks. Due to their unique chemical structures, β-oxodithioesters bear multiple reaction sites, which enable them to participate in two-component or multicomponent reactions to construct various heterocyclic compounds. In the past decade, the application of β-oxodithioesters in the synthesis of heterocycles has made remarkable progress. Herein, an update on the recent advances in the application of β-oxodithioesters in the synthesis of heterocycles during the period from 2013 to 2023/06 is provided. According to the different types of rings concerning heteroatoms in products, this review is divided into five sections under discussion including (i) synthesis of sulfur-containing heterocycles, (ii) synthesis of sulfur and nitrogen-containing heterocycles, (iii) synthesis of nitrogen-containing heterocycles, (iv) synthesis of nitrogen and oxygen-containing heterocycles, and (v) modification to other open-chain frameworks.
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Affiliation(s)
- Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Zhiying Gong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Qian Dou
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Bin Cheng
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Taimin Wang
- Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.
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2
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Li Y, Huang Y, Li Z, Sun J. Recent Advances in Regioselective C-H Bond Functionalization of Free Phenols. Molecules 2023; 28:molecules28083397. [PMID: 37110630 PMCID: PMC10143084 DOI: 10.3390/molecules28083397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Phenols are important readily available synthetic building blocks and starting materials for organic synthetic transformations, which are widely found in agrochemicals, pharmaceuticals, and functional materials. The C-H functionalization of free phenols has proven to be an extremely useful tool in organic synthesis, which provides efficient increases in phenol molecular complexity. Therefore, approaches to functionalizing existing C-H bonds of free phenols have continuously attracted the attention of organic chemists. In this review, we summarize the current knowledge and recent advances in ortho-, meta-, and para-selective C-H functionalization of free phenols in the last five years.
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Affiliation(s)
- Yanan Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yekai Huang
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zhi Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jianan Sun
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, China
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3
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Pali P, Singh MS. Radical-Cascade Avenue to Access 1,2-Dithioles Employing Dithioesters and Edman's Reagent. Org Lett 2023; 25:2258-2263. [PMID: 36966396 DOI: 10.1021/acs.orglett.3c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023]
Abstract
An operationally simple and efficient domino etiquette has been developed for the facile construction of 1,2-dithioles employing easily accessible dithioesters as a three-atom CCS synthon and aryl isothiocyanates as a two-atom CS unit in the absence of any catalyst and additive at room temperature under open air. The reaction proceeded efficiently affording the desired 1,2-dithioles in good yields having various functional groups of a diverse electronic and steric nature. This approach avoids possible toxicity and tiresome workup conditions and features easy to handle, cheap, and readily accessible reagents, O2 as a green oxidant, and gram-scale ability. Notably, the final S-S bond formation and cascade ring construction follow a radical pathway, which has been recognized via a radical trapping experiment with BHT during the course of the reaction. Notably, the exocyclic C═N bond at position 3 of 1,2-dithiole possesses Z stereochemistry.
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Affiliation(s)
- Pragya Pali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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4
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Shukla G, Raghuvanshi K, Singh MS. Regio- and Chemoselective Access to Dihydrothiophenes and Thiophenes via Halogenation/Intramolecular C(sp 2)-H Thienation of α-Allyl Dithioesters at Room Temperature. J Org Chem 2022; 87:13935-13944. [PMID: 36205379 DOI: 10.1021/acs.joc.2c01617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An operationally simple, practical, and efficient cascade approach employing α-allyl dithioesters and NBS/NIS has been achieved to access a series of dihydrothiophenes and thiophenes containing diverse functional groups of different electronic and steric natures in good to excellent yields at room temperature in open air. The reaction proceeds via the electrophilic addition of a halogen source (NBS/NIS) to an allylic double bond, followed by intramolecular regio- and chemoselective S-cyclization. This protocol avoids potential toxicity and tedious work-up conditions, and features easy synthesis from readily available starting materials under catalyst-free conditions. Furthermore, 4,5-dihydrothiophenes were aromatized to thiophenes by treatment with KOH in DMF at room temperature. A probable mechanism for the formation of dihydrothiophenes and thiophenes from α-allyl dithioesters has been suggested. Notably, a large-scale experiment and the transformations of products indicated the potential utility of this reaction compared to competing processes for the synthesis of 4,5-dihydrothiophenes and thiophenes.
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Affiliation(s)
- Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Utta Pradesh 221005, India
| | - Keshav Raghuvanshi
- Coal to Hydrogen Energy for Sustainable Solutions (CHESS) Research Group, CSIR-Central Institute for Mining and Fuel Research (CSIR-CIMFR), Dhanbad, Jharkhand 828119, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Utta Pradesh 221005, India
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5
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Soni S, Shukla G, Singh MS. Magnesium catalyzed [3 + 3] heteroannulation of α-enolic dithioesters with MBH acetate: access to functionalized 3,4-dihydro-2 H-thiopyrans. Org Biomol Chem 2022; 20:6784-6798. [PMID: 35959842 DOI: 10.1039/d2ob01258h] [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
Magnesium catalysis proved to be efficient towards [3 + 3] chemo- and diastereoselective heteroannulation employing racemic Morita-Baylis-Hillman (MBH) acetate as the C3 unit and α-enolic dithioester as the C2S1 unit, leading to highly substituted 3,4-dihydro-2H-thiopyrans in excellent yields. The compatibility with a wide range of functional groups makes this domino formation of C-C and C-S bonds interesting. DFT analyses for the regioselective formation of the intermediate was performed.
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Affiliation(s)
- Sonam Soni
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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6
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Sobhani M, Villinger A, Ehlers P, Langer P. Regioselective Synthesis of Naphthothiophenes by Pd Catalyzed Cross-Coupling Reactions and Alkyne-Carbonyl Metathesis. J Org Chem 2022; 87:4560-4568. [PMID: 35275622 DOI: 10.1021/acs.joc.1c02838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Naphthothiophenes were prepared from commercially available 2,3-dibromothiophenes in two steps by one-pot Suzuki/Sonogashira or Sonogashira/Suzuki coupling reactions, followed by intramolecular alkyne-carbonyl-metathesis reactions. The final cyclization reaction proceeds in the presence of p-toluenesulfonic acid and provides a rapid access to two series of isomeric naphthothiophenes.
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Affiliation(s)
- Maryam Sobhani
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Peter Ehlers
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany.,Leibniz Institut für Katalyse, Universität Rostock, A.-Einstein-Str.29 a, 18059 Rostock, Germany
| | - Peter Langer
- Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany.,Leibniz Institut für Katalyse, Universität Rostock, A.-Einstein-Str.29 a, 18059 Rostock, Germany
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7
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Khan T, Rajesh P, Arun D, Yaragorla S. Stereoselective sulfenylation of oxindole-derived propargyl alcohols to access sulfenylated-3-alkenyloxindoles. Org Biomol Chem 2021; 19:10201-10209. [PMID: 34792078 DOI: 10.1039/d1ob01921j] [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 Ca-catalyzed, tetrasubstituted alkenyl-sulfenylation was achieved using readily available aryl/alkyl thiols and easily prepared oxindole-derived propargyl alcohols under solvent-free conditions. The reaction proceeded with hydrogen bonding assisted regioselective α-thiolation and subsequent calcium catalyzed stereoselective alkenylation to yield E-alkenyl thioethers with high diastereoselectivity.
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Affiliation(s)
- Tabassum Khan
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
| | - Pallava Rajesh
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
| | - Doma Arun
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
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8
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Abedinifar F, Babazadeh Rezaei E, Biglar M, Larijani B, Hamedifar H, Ansari S, Mahdavi M. Recent strategies in the synthesis of thiophene derivatives: highlights from the 2012-2020 literature. Mol Divers 2021; 25:2571-2604. [PMID: 32734589 DOI: 10.1007/s11030-020-10128-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
Abstract
Thiophene-based analogs have been fascinated by a growing number of scientists as a potential class of biologically active compounds. Furthermore, they play a vital role for medicinal chemists to improve advanced compounds with a variety of biological effects. The current review envisioned to highlight some recent and particularly remarkable examples of the synthesis of thiophene derivatives by heterocyclization of various substrates from 2012 on.
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Affiliation(s)
- Fahimeh Abedinifar
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 14176, Iran
| | - Elham Babazadeh Rezaei
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 14176, Iran
| | - Mahmood Biglar
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 14176, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 14176, Iran
| | - Halleh Hamedifar
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Samira Ansari
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 14176, Iran.
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9
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Chellu RK, Kurva S, Soda AK, Chilaka SK, Nanubolu JB, Madabhushi S. A Study of [3+2] Cycloaddition Reaction of Hydrazonoyl Chloride and
β
‐Oxodithioester Under Lewis Acid Catalysis: Stereoselective Synthesis of (
Z
)‐1,3,4‐Thiadiazol‐2(3
H
)‐Ylidenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ramesh Kumar Chellu
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Srinivas Kurva
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Anil Kumar Soda
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sai Krishna Chilaka
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Jagadeesh Babu Nanubolu
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Centre for X-ray Crystallography CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Sridhar Madabhushi
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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10
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Elhady HA, El-Mekawy RE, Fadda AA. Valuable Chemistry of Phenazine Derivatives: Synthesis, Reactions and, Applications. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1833051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Heba A. Elhady
- Department of Chemistry, Faculty of Science, Al-Azhar University (Girls Branch), Youssef Abbas Str. Cairo, Egypt
| | - Rasha E. El-Mekawy
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
- Department of Petrochemicals, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
| | - A. A. Fadda
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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11
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Cheng B, Li H, Hou J, Zhang X, He Y, Sun H, Xu W, Wang T, Zhai H. Synthesis of 3,4-Dihydro-2 H-1,3-thiazines from α-Enolic Dithioesters and 1,3,5-Triazinanes via a Formal (3 + 3) Annulation Reaction. J Org Chem 2020; 85:13339-13346. [PMID: 32989994 DOI: 10.1021/acs.joc.0c01984] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis of 3,4-dihydro-2H-1,3-thiazines from α-enolic dithioesters and 1,3,5-triazinanes has been achieved via a formal (3 + 3) annulation reaction under thermal conditions, where 1,3,5-triazinanes were utilized as three-atom synthons. This transformation is catalyst-free and additive-free.
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Affiliation(s)
- Bin Cheng
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China.,State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hui Li
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China.,State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jieping Hou
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Xinping Zhang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China.,State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yixuan He
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China.,State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Haiyan Sun
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Wei Xu
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Taimin Wang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Hongbin Zhai
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, China.,State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, Peking University Shenzhen Graduate School, Shenzhen 518055, China
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12
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Chen X, Wang M, Zhang X, Fan X. Rh(III)-Catalyzed Cascade Reactions of Sulfoxonium Ylides with α-Diazocarbonyl Compounds: An Access to Highly Functionalized Naphthalenones. Org Lett 2019; 21:2541-2545. [DOI: 10.1021/acs.orglett.9b00340] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xi Chen
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Muhua Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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13
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Feng T, He Y, Zhang X, Fan X. Synthesis of Functionalized Cyclobutane‐Fused Naphthalene Derivatives via Cascade Reactions of Allenynes with
tert
‐Butyl Nitrite. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801439] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tian Feng
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, School of EnvironmentHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Yan He
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, School of EnvironmentHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, School of EnvironmentHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, School of EnvironmentHenan Normal University, Xinxiang Henan 453007 People's Republic of China
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14
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Yadav D, Shukla G, Ansari MA, Srivastava A, Singh MS. Chemoselective one-pot access to benzo[e]indole-4,5-diones and naphtho[2,1-b]thiophene-4,5-diones via copper-catalyzed oxidative [3 + 2] annulation of α-oxoketene N,S-acetals/β-ketothioamides with α-/β-naphthols. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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