1
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Li Y, Wang L, Zhou S, He G, Zhou Y. Electrochemical oxidative cyclization of N-allylamides for the synthesis of CF 3-containing benzoxazines and oxazolines. RSC Adv 2024; 14:154-159. [PMID: 38173567 PMCID: PMC10758801 DOI: 10.1039/d3ra07282g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
The introduction of trifluoromethyl (-CF3) groups into compounds is a common synthetic strategy in organic chemistry. Commonly used methods for introducing trifluoromethyl groups are limited by harsh reaction conditions, low regioselectivity, or the need for excess reagents. In this study, a facile electrochemical oxidative and radical cascade cyclization of N-(2-vinylphenyl)amides for the synthesis of CF3-containing benzoxazines and oxazolines was obtained. This sustainable protocol features inexpensive and durable electrodes, a wide range of substrates, diverse functional group compatibility under transition-metal-free, external-oxidant-free, and additive-free conditions, and can be applied in an open environment.
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Affiliation(s)
- Yutian Li
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Li Wang
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Shengbin Zhou
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Guoxue He
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu Zhou
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences Hangzhou 310024 China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
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2
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Doraghi F, Aledavoud SP, Ghanbarlou M, Larijani B, Mahdavi M. N-Sulfenylsuccinimide/phthalimide: an alternative sulfenylating reagent in organic transformations. Beilstein J Org Chem 2023; 19:1471-1502. [PMID: 37799175 PMCID: PMC10548256 DOI: 10.3762/bjoc.19.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023] Open
Abstract
In the field of organosulfur chemistry, sulfenylating agents are an important key in C-S bond formation strategies. Among various organosulfur precursors, N-sulfenylsuccinimide/phthalimide derivatives have shown highly electrophilic reactivity for the asymmetric synthesis of many organic compounds. Hence, in this review article, we focus on the application of these alternative sulfenylating reagents in organic transformations.
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Affiliation(s)
- Fatemeh Doraghi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Pegah Aledavoud
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Ghanbarlou
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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3
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Sonego JM, de Diego SI, Szajnman SH, Gallo-Rodriguez C, Rodriguez JB. Organoselenium Compounds: Chemistry and Applications in Organic Synthesis. Chemistry 2023; 29:e202300030. [PMID: 37378970 DOI: 10.1002/chem.202300030] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 06/18/2023] [Accepted: 06/28/2023] [Indexed: 06/29/2023]
Abstract
Selenium, originally described as a toxin, turns out to be a crucial trace element for life that appears as selenocysteine and its dimer, selenocystine. From the point of view of drug developments, selenium-containing drugs are isosteres of sulfur and oxygen with the advantage that the presence of the selenium atom confers antioxidant properties and high lipophilicity, which would increase cell membrane permeation leading to better oral bioavailability. In this article, we have focused on the relevant features of the selenium atom, above all, the corresponding synthetic approaches to access a variety of organoselenium molecules along with the proposed reaction mechanisms. The preparation and biological properties of selenosugars, including selenoglycosides, selenonucleosides, selenopeptides, and other selenium-containing compounds will be treated. We have attempted to condense the most important aspects and interesting examples of the chemistry of selenium into a single article.
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Affiliation(s)
- Juan M Sonego
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), C1428EHA, Buenos Aires, Argentina
| | - Sheila I de Diego
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), C1428EHA, Buenos Aires, Argentina
| | - Sergio H Szajnman
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), C1428EHA, Buenos Aires, Argentina
| | - Carola Gallo-Rodriguez
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EHA, Buenos Aires, Argentina
| | - Juan B Rodriguez
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), C1428EHA, Buenos Aires, Argentina
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4
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Li C, Xiang X, Zhang X, He ZL, Gu SX, Dong XQ. Iridium-Catalyzed Intramolecular Asymmetric Allylation of Vinyl Benzoxazinones for the Synthesis of Chiral 4 H-3,1-Benzoxazines via Kinetic Resolution. Org Lett 2023; 25:1172-1177. [PMID: 36779869 DOI: 10.1021/acs.orglett.3c00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Chiral benzoxazinones and 4H-3,1-benzoxazines as important motifs are widely found in abundant pharmaceuticals and biological molecules. We herein successfully developed the first kinetic resolution (KR) process of racemic benzoxazinones through Ir-catalyzed asymmetric intramolecular allylation, furnishing a wide range of chiral benzoxazinones and 4H-3,1-benzoxazines with excellent results via outstanding KR performances (with the s factor up to 170). This protocol exhibited broad substrate scope generality and good functional group tolerance, and the chiral 4H-3,1-benzoxazine products could be readily transformed to other useful optically active heterocycles.
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Affiliation(s)
- Chenzong Li
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xun Xiang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xianghe Zhang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Zhao-Lin He
- School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Shuang-Xi Gu
- School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
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5
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Aerial Oxygen-Driven Selenocyclization of O-Vinylanilides Mediated by Coupled Fe3+/Fe2+ and I2/I− Redox Cycles. Molecules 2022; 27:molecules27217386. [DOI: 10.3390/molecules27217386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
In the past decade, selenocyclization has been extensively exploited for the preparation of a wide range of selenylated heterocycles with versatile activities. Previously, selenium electrophile-based and FeCl3-promoted methods were employed for the synthesis of selenylated benzoxazines. However, these methods are limited by starting material availability and low atomic economy, respectively. Inspired by the recent catalytic selenocyclization approaches based on distinctive pathways, we rationally constructed an efficient and greener double-redox catalytic system for the access to diverse selenylated benzoxazines. The coupling of I2/I− and Fe3+/Fe2+ catalytic redox cycles enables aerial O2 to act as the driving force to promote the selenocyclization. Control and test redox experiments confirmed the roles of each component in the catalytic system, and a PhSeI-based pathway is proposed for the selenocyclization process.
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6
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Vaskevych AI, Savinchuk NO, Vaskevych RI, Rusanov EB, Vovk MV. Chalcogenation/pyrrolo(pyrido)annulation of 2-(3-butenyl)quinazolin-4(3H)-ones by arylsulfenyl(selenyl) chlorides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Wei YF, Gao WC, Chang HH, Jiang X. Recent advances in thiolation via sulfur electrophiles. Org Chem Front 2022. [DOI: 10.1039/d2qo01447e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This review systematically summarizes the recent developments for constructing sulfur compounds from sulfur electrophiles, and the mechanism mainly involved thirranium ions, sulfur ylides, C–S cross coupling and electrophilic substitution.
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Affiliation(s)
- Ya-Feng Wei
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Wen-Chao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hong-Hong Chang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xuefeng Jiang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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8
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Yang Y, Liu L, Li K, Zha Z, Sun Q, Wang Z. Iodine-mediated oxythiolation of o-vinylanilides with disulfides for the synthesis of benzoxazines. RSC Adv 2022; 12:7347-7351. [PMID: 35424675 PMCID: PMC8982212 DOI: 10.1039/d2ra01078j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 11/21/2022] Open
Abstract
An efficient iodine-mediated oxythiolation of o-vinylanilides with disulfides was developed. By virtue of this method, a series of thio-tethered benzoxazine derivatives were synthesized in good to excellent yields. The reaction features high yields, is metal-free, and has a wide substrate scope. An efficient iodine-mediated oxythiolation of o-vinylanilides with disulfides was developed. The reaction features high yields, is metal-free, and has a wide substrate scope.![]()
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Affiliation(s)
- Yu Yang
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, 230601, China
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Liyan Liu
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Kuiliang Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qi Sun
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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9
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Li J, Yang Q, Zhang Z, Zeng G, Liu T, Huang C. Highly Selective Synthesis of ( Z)- N-vinyl Ring N, O-Acetal Derivatives by Multi-component Continuous Flow. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Kesavan A, Anbarasan P. Catalytic enantioselective oxysulfenylation of o-vinylanilides. Chem Commun (Camb) 2021; 58:282-285. [PMID: 34878444 DOI: 10.1039/d1cc05835e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tf2NH-assisted BINAM-derived thiophosphoramide catalysis has been accomplished for the enantioselective oxysulfenylation of o-vinylanilides with N-(aryl/alkylthio)imides. The developed reaction offers access to diverse substituted aryl/alkylthio tethered 3,1-benzoxazines in excellent yields and enantiomeric ratios. Furthermore, synthetic applications of benzoxazines and aryl/alkylthio moieties and a transition state model for the observed enantioselectivity are also discussed.
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Affiliation(s)
- Arunachalam Kesavan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
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11
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Maiti D, Halder A, Sasidharan Pillai A, De Sarkar S. Synthesis of Polysubstituted Furans through Electrochemical Selenocyclization of Homopropargylic Alcohols. J Org Chem 2021; 86:16084-16094. [PMID: 34606280 DOI: 10.1021/acs.joc.1c01688] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The current method represents an electrochemically driven synthetic route to access polysubstituted selenofuran derivatives through the diselenide-promoted cyclization of homopropargyl alcohols. The tandem electro-oxidative transformation operates at ambient temperature and in the absence of an external oxidant. This mild and efficient methodology exhibits good functional group compatibility, providing a broad range of substrate scopes up to 84% isolated yield. Further conversion of the seleno-functionality afforded other valuable furan derivatives.
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Affiliation(s)
- Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Atreyee Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Aswathy Sasidharan Pillai
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
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12
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Sun L, Wang L, Alhumade H, Yi H, Cai H, Lei A. Electrochemical Radical Selenylation of Alkenes and Arenes via Se-Se Bond Activation. Org Lett 2021; 23:7724-7729. [PMID: 34581590 DOI: 10.1021/acs.orglett.1c02661] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel electrochemical radical selenylation of alkenes and activated arenes without external oxidants is reported. The diselenide was fully transformed into Se-centered radicals through electrochemical Se-Se bond activation. Three-component radical carbonselenation was successfully realized using styrenes to trap the RSe radical. Besides, the direct coupling of RSe radicals with activated arenes was further developed. Using this atom-economic protocol, diversity of unsymmetric aryl-aryl, aryl-alkyl, and alkyl-alkyl selenoethers was obtained regioselectively, which has potential application in biological chemistry.
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Affiliation(s)
- Li Sun
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
| | - Liwei Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia.,Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jdedah 21589, Saudi Arabia
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Hu Cai
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
| | - Aiwen Lei
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China.,Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,King Abdulaziz University, Jeddah 21589, Saudi Arabia
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13
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Ghorai J, Kesavan A, Anbarasan P. Cp*Co(III)-catalyzed C2-thiolation and C2,C3-dithiolation of substituted indoles with N-(arylthio)succinimide. Chem Commun (Camb) 2021; 57:10544-10547. [PMID: 34553717 DOI: 10.1039/d1cc03760a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A general and efficient Cp*CoIII-catalyzed C2-thiolation and C2,C3-dithiolation of indole derivatives has been achieved employing N-(aryl/alkylthio)succinimide as a thiolating reagent. This external oxidant-free method utilizes only catalytic amounts of additive and tolerates various functional groups to afford various thiolated products in good yields. Control experiments revealed the importance of the Cp*CoIII-catalyst for both C2- and C3-thiolation.
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Affiliation(s)
- Jayanta Ghorai
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
| | - Arunachalam Kesavan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
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14
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Halder A, Mahanty K, Maiti D, De Sarkar S. Highly Diastereoselective Synthesis of Dihydro-benzoimidazo-[1,3]-thiazines via Electro-oxidative Selenocyclization of Thioallyl Benzoimidazoles. Chem Asian J 2021; 16:3895-3899. [PMID: 34609085 DOI: 10.1002/asia.202101033] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/02/2021] [Indexed: 11/10/2022]
Abstract
The current methodology reveals a green and proficient electro-oxidative tandem selenocyclization of thioallyl benzoimidazoles manufacturing selenylated dihydro-benzoimidazo-thiazine derivatives. Both C-Se and C-N bond formation were achieved via this mild protocol which exhibits good functional group tolerability affording an extensive range of substrate scope up to 96% isolated yields. Complete control over the regioselective formation of the six-membered heterocycle and stereoselective construction of the contiguous stereocenters was established. The practical electrochemical method operates in an undivided cell at ambient temperature without using any metal and external chemical oxidant.
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Affiliation(s)
- Atreyee Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Kingshuk Mahanty
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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15
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Kesavan A, Anbarasan P. Vicinal Trifluoromethylthioamination of Alkenes with Trifluoromethanesulfenamides. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Arunachalam Kesavan
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
| | - Pazhamalai Anbarasan
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
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16
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Natarajan P, Priya, Chuskit D. Persulfate-activated charcoal mixture: an efficient oxidant for the synthesis of sulfonated benzo[ d][1,3]oxazines from N-(2-vinylphenyl)amides and thiols in aqueous solution. RSC Adv 2021; 11:15573-15580. [PMID: 35481158 PMCID: PMC9029395 DOI: 10.1039/d1ra02377b] [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: 03/25/2021] [Accepted: 04/20/2021] [Indexed: 11/21/2022] Open
Abstract
A series of 2,4-aryl-4-((arylsulfonyl)methyl)-4H-benzo[d][1,3]oxazines in good to excellent yields have directly been obtained from N-(2-vinylphenyl)amides and thiols by employing a mixture of K2S2O8-activated charcoal in aqueous acetonitrile solution at 50 °C. A plausible mechanism for the reaction is reported. It reveals that the reaction follows a radical pathway and the persulfate has been the oxygen source for formation of the sulfone group in the products. It is worth mentioning that this protocol utilizes an easily accessible K2S2O8-activated charcoal mixture and thiols, respectively, as an oxidant and sulfonylating precursors for the first time.
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Affiliation(s)
- Palani Natarajan
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh - 160014 India
| | - Priya
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh - 160014 India
| | - Deachen Chuskit
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh - 160014 India
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17
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Zhou J, Li W, Zheng H, Pei Y, Liu X, Cao H. Visible Light-Induced Cascade Cyclization of 3-Aminoindazoles, Ynals, and Chalcogens: Access to Chalcogen-Containing Pyrimido[1,2-b]-indazoles. Org Lett 2021; 23:2754-2759. [DOI: 10.1021/acs.orglett.1c00664] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Wen Li
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Huitao Zheng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Yongyan Pei
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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18
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Xie Q, Long HJ, Zhang QY, Tang P, Deng J. Enantioselective Syntheses of 4 H-3,1-Benzoxazines via Catalytic Asymmetric Chlorocyclization of o-Vinylanilides. J Org Chem 2020; 85:1882-1893. [PMID: 31880445 DOI: 10.1021/acs.joc.9b02395] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic asymmetric halocyclization of alkene is a powerful and straightforward strategy for the synthesis of chiral heterocyclic compounds. Herein, an effective approach to chiral benzoxazine derivatives through organocatalyzed chlorocyclization of o-vinylanilides was reported. This method provides facile access to a series of chiral benzoxazines in good to excellent yields (up to 99% yield) and with high-level enantiocontrol (up to 92% ee).
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Affiliation(s)
- Qinxia Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba , Chongqing 401331 , China
| | - Hai-Jiao Long
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba , Chongqing 401331 , China
| | - Qiong-Yin Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba , Chongqing 401331 , China
| | - Pei Tang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba , Chongqing 401331 , China.,Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy , Sichuan University , Chengdu 610041 , China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Centre, School of Pharmaceutical Sciences , Chongqing University , 55 Daxuecheng South Road , Shapingba , Chongqing 401331 , China
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19
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He TJ, Zhong WQ, Huang JM. The synthesis of sulfonated 4H-3,1-benzoxazines via an electro-chemical radical cascade cyclization. Chem Commun (Camb) 2020; 56:2735-2738. [DOI: 10.1039/c9cc09551a] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We achieved sulfonated 4H-3,1-benzoxazines under ambient conditions without any metals and external chemical oxidants via electrochemical radical cascade cyclizations.
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Affiliation(s)
- Tian-Jun He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Wei-Qiang Zhong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
| | - Jing-Mei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- China
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20
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Redox-neutral photocatalytic cyanomethylation/cyclization cascade of olefinic amides: Access to cyanomethylated benzoxazines. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Xu Q, Zheng B, Pan L, Liu Q, Li Y. Synthesis of α‐Substituted Succinimides from Glyoxal and Ketene
N
,
S
‐Acetals. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qi Xu
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
| | - Baihui Zheng
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
| | - Ling Pan
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
| | - Qun Liu
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
| | - Yifei Li
- Department of ChemistryNortheast Normal University Changchun 130024 P. R. China
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisNortheast Normal University Changchun 130024 P. R. China
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22
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Tian Y, Ge Y, Zheng L, Yan Q, Ren Y, Wang Z, Zhang K, Wang Z, Zhao J, Li Z. A Free Radical Cascade Difunctionalization of
o
‐Vinylanilides with Simple Ketones and Esters. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900591] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yunfei Tian
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Fuction-Oriented Porous MaterialsLuoyang Normal University Luoyang, Henan 471022 P. R. China
| | - Yaxin Ge
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Luping Zheng
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Fuction-Oriented Porous MaterialsLuoyang Normal University Luoyang, Henan 471022 P. R. China
| | - Qinqin Yan
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Yingming Ren
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Zhenguang Wang
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Kailin Zhang
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Zhiqiang Wang
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Fuction-Oriented Porous MaterialsLuoyang Normal University Luoyang, Henan 471022 P. R. China
| | - Jincan Zhao
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
| | - Zejiang Li
- College of Chemistry & Environmental Science Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education and Key Laboratory of Chemical Biology of Hebei ProvinceHebei University Baoding, Hebei 071002 P. R. China
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23
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Zhu M, Li R, You Q, Fu W, Guo W. Synthesis of SCF
3
‐Containing Benzoxazines and Oxazolines via a Photoredox‐Catalyzed Radical Trifluoromethylthiolation‐Cyclization of Olefinic Amides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900499] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mei Zhu
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal University 471934 Luoyang, Henan P. R. China
| | - Rongxia Li
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal University 471934 Luoyang, Henan P. R. China
| | - Qingqing You
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal University 471934 Luoyang, Henan P. R. China
| | - Weijun Fu
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal University 471934 Luoyang, Henan P. R. China
| | - Weisi Guo
- State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology 266042 Qingdao P. R. China
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24
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Chen J, Mei L, Wang H, Hu L, Sun X, Shi J, Li Q. Efficient Protocol for Synthesis of β-Hydroxy(alkoxy)selenides via Electrochemical Iodide-Catalyzed Oxyselenation of Styrene Derivatives with Dialkyl(aryl)diselenides. ChemistryOpen 2019; 8:1230-1234. [PMID: 31592067 PMCID: PMC6769433 DOI: 10.1002/open.201900246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/07/2019] [Indexed: 11/18/2022] Open
Abstract
An efficient protocol for the synthesis of β-hydroxy(alkoxy)selenides was developed through the electrochemical iodide-catalyzed oxyselenation of styrene derivatives with dialkyl(aryl)diselenides under mild reaction conditions. Mechanistic studies showed that the cation I+ is involved during the whole process, and accelerates the formation of seleniranium ion via substitution and addition reaction with dialkyl(aryl)diselenides and styrene derivatives. The corresponding products are formed in good to excellent yields. This electrochemical oxyselenation provides an efficient strategy for difunctionalization of alkenes.
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Affiliation(s)
- Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Lan Mei
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Haiying Wang
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Li Hu
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Xiaorui Sun
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Jianwei Shi
- Chongqing Key Laboratory of Inorganic Special Functional Materials,College of Chemistry and Chemical EngineeringYangtze Normal University, FulingChongqing408000P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng UniversityNo. 1, Hunan StreetLiaocheng, Shandong252059P. R. China
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25
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Sun S, Zhou C, Cheng J. Synthesis of 4-cyanoethylated benzoxazines by visible-light-promoted radical oxycyanomethylation of olefinic amides with bromoacetonitrile. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.017] [Citation(s) in RCA: 4] [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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26
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Gao WC, Shang YZ, Chang HH, Li X, Wei WL, Yu XZ, Zhou R. N-Alkynylthio Phthalimide: A Shelf-Stable Alkynylthio Transfer Reagent for the Synthesis of Alkynyl Thioethers. Org Lett 2019; 21:6021-6024. [PMID: 31329453 DOI: 10.1021/acs.orglett.9b02174] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new kind of electrophilic alkynylthiolating reagent, called N-alkynylthio phthalimide, is designed and synthesized herein. This electrophilic sulfenylating reagent can be easily prepared in three steps from commercially available phthalimide and corresponding silver acetylide. Furthermore, the N-alkynylthio phthalimides are demonstrated to be efficient alkynylthio transfer reagents that can react with various C-nucleophiles, including β-ketoesters, aryl boronic acids, and Grignard reagents to afford a diverse range of alkynyl thioethers under mild conditions.
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Affiliation(s)
- Wen-Chao Gao
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes , East China Normal University , Shanghai 200062 , P.R. China
| | - Yu-Zhu Shang
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Hong-Hong Chang
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Xing Li
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Wen-Long Wei
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Xin-Zhang Yu
- Taiyuan Institute of Technology , Taiyuan 030008 , P.R. China
| | - Rong Zhou
- Taiyuan University of Technology , Taiyuan 030024 , P.R. China
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27
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Cao W, Xu X, Ji S. Copper‐Catalyzed Sequential C(
sp
2
)/C(
sp
3
)−H Amination of 2‐Vinylanilines with
N
‐Fluorobenzenesulfonimide. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wen‐Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
| | - Xiao‐Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
| | - Shun‐Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University Suzhou 215123 People's Republic of China
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28
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Sun L, Yuan Y, Yao M, Wang H, Wang D, Gao M, Chen YH, Lei A. Electrochemical Aminoselenation and Oxyselenation of Styrenes with Hydrogen Evolution. Org Lett 2019; 21:1297-1300. [DOI: 10.1021/acs.orglett.8b03274] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Li Sun
- College of Chemistry, Nanchang University, Nanchang 330031, Jiangxi, P.R. China
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Yong Yuan
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Min Yao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Han Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Daoxin Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Meng Gao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Yi-Hung Chen
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P.R. China
| | - Aiwen Lei
- College of Chemistry, Nanchang University, Nanchang 330031, Jiangxi, P.R. China
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P.R. China
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29
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Wu J, Zong Y, Zhao C, Yan Q, Sun L, Li Y, Zhao J, Ge Y, Li Z. Silver or cerium-promoted free radical cascade difunctionalization of o-vinylanilides with sodium aryl- or alkylsulfinates. Org Biomol Chem 2019; 17:794-797. [DOI: 10.1039/c8ob02964d] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An efficient cascade oxysulfonylation of o-vinylanilides with sodium aryl- or alkylsulfinates was developed for the synthesis of sulfonated benzoxazines.
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Affiliation(s)
- Jilai Wu
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Yuanyuan Zong
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Chunxia Zhao
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Qinqin Yan
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Lixian Sun
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Yiming Li
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Jincan Zhao
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Yaxin Ge
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Zejiang Li
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education
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