1
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Wang M, Gao Y, Zhao XJ, Gao L, He Y. Electrochemical multicomponent [2+2+1] cascade cyclization of enaminones and primary amines towards the synthesis of 4-acylimidazoles. Chem Commun (Camb) 2024; 60:2677-2680. [PMID: 38352990 DOI: 10.1039/d3cc06196e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
An electrochemical multicomponent [2+2+1] cascade cyclization of enaminones and primary amines towards the synthesis of 4-acylimidazoles has been developed. In an undivided cell, enaminones and primary amines can smoothly participate in this reaction to provide a series of 1,2-disubstituted 4-acylimidazoles at room temperature. The reaction avoids the use of both transition-metal catalysts and oxidation reagents, which makes it more sustainable and renewable.
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Affiliation(s)
- Mingxu Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission, School of Ethnic Medicine, Yunnan Minzu University Kunming, 650500, China.
| | - Ying Gao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission, School of Ethnic Medicine, Yunnan Minzu University Kunming, 650500, China.
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission, School of Ethnic Medicine, Yunnan Minzu University Kunming, 650500, China.
| | - Lu Gao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission, School of Ethnic Medicine, Yunnan Minzu University Kunming, 650500, China.
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission, School of Ethnic Medicine, Yunnan Minzu University Kunming, 650500, China.
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2
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Zong ZM, Zhang L, Li GP, Wang W, Zhao XJ, He Y. Electrochemical-Induced C-N Bond Formation: A New Method to Synthesis ( Z)-Quinazolinone Oximes Using Primary Amines and Quinazolin-4(3 H)-one. Org Lett 2024; 26:1271-1276. [PMID: 38323795 DOI: 10.1021/acs.orglett.4c00107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
A novel and highly selective electrochemical method for the synthesis of diverse quinazolinone oximes via direct electrooxidation of primary amines/C(sp2)-H functionalization of oximes has been developed. The reaction is conducted in an undivided cell under constant current conditions and is oxidant-free, open-air, and eco-friendly. Notably, the protocol shows good functional group tolerance, providing versatile quinazolinone oximes in good yields. Moreover, the mechanism is investigated through control experiments and cyclic voltammogram (CV) experiments.
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Affiliation(s)
- Zhi-Min Zong
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Lizhu Zhang
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Gan-Peng Li
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Wei Wang
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
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3
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Wei B, Zhou Z, Qin J, Yan Z, Guo J, Lei S, Xie Y, Ouyang X, Song R. Electrochemical Oxidative C(sp 3)—H Sulfonylation of Xanthenes with Sodium Sulfinates. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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4
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Electrochemical C–H/N–H cross-coupling of 2-phenylindolizines with phenothiazines to synthesize novel N-aryl phenothiazine derivatives. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Wu X, Zhao XJ, Zhang L, Li G, He Y. Electrooxidative dehydrogenative coupling of 1,4-naphthoquinones with amines: Facile access to 2-amino-1,4-naphthoquinones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154208] [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]
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6
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He Y, Zeng L, Li M, Gu L, Zhang S, Li G. Electrochemical Oxidative C-C Bond Cleavage of Ketones for C-N Bond Formation: A Route to Amides. J Org Chem 2022; 87:12622-12631. [PMID: 36098549 DOI: 10.1021/acs.joc.2c01025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report an efficient electrochemical activation of the C-C bond of aryl ketones for the preparation of amides under catalyst- and external-oxidant-free conditions using aliphatic amines as the N source. Under environmentally benign electrolysis conditions, a series of amides were synthesized in good yield. Our control experiments revealed that electricity plays an important role in this transformation.
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Affiliation(s)
- Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Liang Zeng
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Ming Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Lijun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China.,Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Shengyong Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, Yunnan, China
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7
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [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)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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8
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Benchouaia R, Nandi S, Maurer C, Patureau FW. O 2-Mediated Dehydrogenative Phenoxazination of Phenols. J Org Chem 2022; 87:4926-4935. [PMID: 35276045 PMCID: PMC8981320 DOI: 10.1021/acs.joc.1c02827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Phenoxazines, in
particular N-arylated phenoxazines, represent
an increasingly important scaffold in the material sciences. Moreover,
the oxygen-gas-mediated dehydrogenative phenochalcogenazination concept
of phenols has been developed and exemplified for X = sulfur and recently
for X = selenium and tellurium. The smallest chalcogen, X = oxygen,
is herein exemplified with various functional groups under a likewise
trivial oxygen atmosphere.
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Affiliation(s)
- Rajaa Benchouaia
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Shiny Nandi
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Clemens Maurer
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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9
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Vemuri P, Cremer C, Patureau FW. Te(II)-Catalyzed Cross-Dehydrogenative Phenothiazination of Anilines. Org Lett 2022; 24:1626-1630. [PMID: 35192766 PMCID: PMC8902801 DOI: 10.1021/acs.orglett.2c00125] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Indexed: 12/11/2022]
Abstract
Oxidative clicklike reactions are useful for the late-stage functionalization of pharmaceuticals and organic materials. Hence, novel methodologies that enable such transformations are in high demand. Herein we describe a tellurium(II)-catalyzed cross-dehydrogenative phenothiazination (CDP) of aromatic amines. A key feature of this method is a cooperative effect between the phenotellurazine catalyst and the silver salt, which serves as a chemical oxidant for the reaction. This novel catalysis concept therefore enables a considerably broader scope compared with previous chemical oxidation methods.
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Affiliation(s)
- Pooja
Y. Vemuri
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Christopher Cremer
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Frederic W. Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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10
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Xia W, Zhou ZA, Lv J, Xiang SH, Wang YB, Tan B. Facile synthesis of N-aryl phenothiazines and phenoxazines via Brønsted acid catalyzed C-H amination of arenes. Chem Commun (Camb) 2022; 58:1613-1616. [PMID: 35019918 DOI: 10.1039/d1cc06730c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
N-Aryl phenothiazines and phenoxazines are of significant importance in various disciplines throughout academia and industry. The conventional synthetic strategy for the construction of these structures centers on the transition-metal-catalyzed cross-coupling of aryl halides with phenothiazines or phenoxazines. Here we present an organocatalytic approach to access N-naphthyl phenothiazine and phenoxazine scaffolds through a straightforward C-H amination of arenes as enabled by an azo group. This reaction features operational simplicity, adequate substrate generality and excellent functional group compatibility. Notably, the efficiency of the catalyst could be perfectly preserved after 5 catalytic cycles.
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Affiliation(s)
- Wang Xia
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Zi-An Zhou
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jie Lv
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China. .,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yong-Bin Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Bin Tan
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
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11
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Murray PD, Cox JH, Chiappini ND, Roos CB, McLoughlin EA, Hejna BG, Nguyen ST, Ripberger HH, Ganley JM, Tsui E, Shin NY, Koronkiewicz B, Qiu G, Knowles RR. Photochemical and Electrochemical Applications of Proton-Coupled Electron Transfer in Organic Synthesis. Chem Rev 2022; 122:2017-2291. [PMID: 34813277 PMCID: PMC8796287 DOI: 10.1021/acs.chemrev.1c00374] [Citation(s) in RCA: 163] [Impact Index Per Article: 81.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Indexed: 12/16/2022]
Abstract
We present here a review of the photochemical and electrochemical applications of multi-site proton-coupled electron transfer (MS-PCET) in organic synthesis. MS-PCETs are redox mechanisms in which both an electron and a proton are exchanged together, often in a concerted elementary step. As such, MS-PCET can function as a non-classical mechanism for homolytic bond activation, providing opportunities to generate synthetically useful free radical intermediates directly from a wide variety of common organic functional groups. We present an introduction to MS-PCET and a practitioner's guide to reaction design, with an emphasis on the unique energetic and selectivity features that are characteristic of this reaction class. We then present chapters on oxidative N-H, O-H, S-H, and C-H bond homolysis methods, for the generation of the corresponding neutral radical species. Then, chapters for reductive PCET activations involving carbonyl, imine, other X═Y π-systems, and heteroarenes, where neutral ketyl, α-amino, and heteroarene-derived radicals can be generated. Finally, we present chapters on the applications of MS-PCET in asymmetric catalysis and in materials and device applications. Within each chapter, we subdivide by the functional group undergoing homolysis, and thereafter by the type of transformation being promoted. Methods published prior to the end of December 2020 are presented.
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Affiliation(s)
- Philip
R. D. Murray
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - James H. Cox
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nicholas D. Chiappini
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Casey B. Roos
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | | | - Benjamin G. Hejna
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Suong T. Nguyen
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Hunter H. Ripberger
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Jacob M. Ganley
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Elaine Tsui
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nick Y. Shin
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Brian Koronkiewicz
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Guanqi Qiu
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
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12
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Bugaenko DI, Karchava AV, Yurovskaya MA. Transition metal-free cross-coupling reactions with the formation of carbon-heteroatom bonds. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Lu L, Shi R, Lei A. Single-electron transfer oxidation-induced C–H bond functionalization via photo-/electrochemistry. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2021.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Wei B, Qin JH, Yang YZ, Xie YX, Ouyang XH, Song RJ. Electrochemical radical C(sp3)–H arylation of xanthenes with electron-rich arenes. Org Chem Front 2022. [DOI: 10.1039/d1qo01714d] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An efficient electrochemical C(sp3)–H arylation of xanthenes using a carbon anode and platinum cathode as the electrodes is disclosed.
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Affiliation(s)
- Bin Wei
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yong-Zheng Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ye-Xiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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15
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Wang D, Wan Z, Zhang H, Alhumade H, Yi H, Lei A. Electrochemical Reductive Arylation of Nitroarenes with Arylboronic Acids. CHEMSUSCHEM 2021; 14:5399-5404. [PMID: 34581006 DOI: 10.1002/cssc.202101924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/26/2021] [Indexed: 06/13/2023]
Abstract
The synthesis of diarylamine is extremely important in organic chemistry. Herein, a novel electrochemical reductive arylation of nitroarenes with arylboronic acids was developed. A variety of diarylamines were synthesized without the need for transition-metal catalysts. The reaction could be scaled up efficiently in a flow cell and several derivatization reactions were carried out smoothly. Cyclic voltammetry experiments and mechanism studies showed that acetonitrile, formic acid, and triethyl phosphite all played a role in promoting this reductive arylation transformation.
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Affiliation(s)
- Dan 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, 430072, P. R. China
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, 430062, P. R. China
| | - Zhaohua Wan
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jdedah, 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, 430072, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
- King Abdulaziz University, Jdedah, 21589, Saudi Arabia
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16
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Chen S, Li YN, Xiang SH, Li S, Tan B. Electrochemical phenothiazination of naphthylamines and its application in photocatalysis. Chem Commun (Camb) 2021; 57:8512-8515. [PMID: 34351332 DOI: 10.1039/d1cc03276c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
N-Phenylphenothiazine as an inexpensive, highly reductive and oxygen tolerant organophotocatalyst has exhibited potential in various challenging photochemical transformations. Here we report a general and straightforward method to access structurally diverse N-phenylphenothiazine derivatives by means of a novel electrochemical tool. The introduction of a 2-naphthylamine moiety with an extended π-system and an amine group led to the variation of spectral characterization. Photochemical verification experiments demonstrated that the formed N-arylation products with good efficacy and chemo/site-control displayed competitive catalytic activity in challenging transformations.
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Affiliation(s)
- Song Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
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17
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Puthanveedu M, Khamraev V, Brieger L, Strohmann C, Antonchick AP. Electrochemical Dehydrogenative C(sp 2 )-H Amination. Chemistry 2021; 27:8008-8012. [PMID: 33931904 PMCID: PMC8251997 DOI: 10.1002/chem.202100960] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Indexed: 02/06/2023]
Abstract
A transition-metal-free direct electrolytic C-H amination involving an electrochemically generated nitrenium ion intermediate has been developed. The electrosynthesis takes place in the absence of any organoiodine catalysts and is enabled by an in situ generated electrolyte. A novel, efficient intramolecular and intermolecular C-H amination has been demonstrated using a simple reaction setup.
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Affiliation(s)
- Mahesh Puthanveedu
- Max-Planck-Institut für Molekulare PhysiologieAbteilung Chemische BiologieOtto-Hahn-Straße 1144227DortmundGermany
- Technische Universität DortmundFakultät für Chemie und Chemische BiologieChemische BiologieOtto-Hahn-Straße 4a44221DortmundGermany
| | - Vladislav Khamraev
- Technische Universität DortmundFakultät für Chemie und Chemische BiologieChemische BiologieOtto-Hahn-Straße 4a44221DortmundGermany
- North Caucasus Federal UniversityDepartment of Chemistry1a Pushkin St.355009StavropolRussian Federation
- Present address: D. I. Mendeleev University of Chemical Technology of Russia9 Miusskaya Square, 125047MoscowRussian Federation
| | - Lukas Brieger
- Technische Universität DortmundFakultät für Chemie und Chemische BiologieAnorganische ChemieOtto-Hahn-Straße 644227DortmundGermany
| | - Carsten Strohmann
- Technische Universität DortmundFakultät für Chemie und Chemische BiologieAnorganische ChemieOtto-Hahn-Straße 644227DortmundGermany
| | - Andrey P. Antonchick
- Max-Planck-Institut für Molekulare PhysiologieAbteilung Chemische BiologieOtto-Hahn-Straße 1144227DortmundGermany
- Technische Universität DortmundFakultät für Chemie und Chemische BiologieChemische BiologieOtto-Hahn-Straße 4a44221DortmundGermany
- Nottingham Trent UniversityCollege of Science and TechnologyDepartment of Chemistry and ForensicsClifton LaneNG11 8NSNottinghamUK
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18
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Cremer C, Eltester MA, Bourakhouadar H, Atodiresei IL, Patureau FW. Dehydrogenative C-H Phenochalcogenazination. Org Lett 2021; 23:3243-3247. [PMID: 33848168 PMCID: PMC8155573 DOI: 10.1021/acs.orglett.1c00573] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Heavy-atom-modified
chalcogen-fused triarylamine organic materials
are becoming increasingly important in the photochemical sciences.
In this context, the general and direct dehydrogenative C–H
phenochalcogenazination of phenols with the heavier chalcogens selenium
and tellurium is herein described. The latter dehydrogenative C–N
bond-forming processes operate under simple reaction conditions with
highly sustainable O2 serving as the terminal oxidant.
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Affiliation(s)
- Christopher Cremer
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - M Alexander Eltester
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Hicham Bourakhouadar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Iuliana L Atodiresei
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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19
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Luo Y, Su R, Yang H. Efficient copper(i)-catalyzed oxidative intermolecular 1,2-estersulfenylation of styrenes with peroxyesters and disulfides. Org Biomol Chem 2021; 18:5045-5049. [PMID: 32573616 DOI: 10.1039/d0ob00823k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A simple and practical method for the synthesis of thio-substituted esters through copper(i)-catalyzed intermolecular 1,2-estersulfenylation of styrenes with peroxyesters and disulfides was developed. In this transformation, two new C-S bond and C-O bond were constructed simultaneously under a copper catalyst system, and the transformation exhibits a broad substrate scope and good functional group compatibility. In addition, this method can also be applied to arylthiols. It should be noted that peroxyesters not only acted as nucleophilic reagents but also as oxidants.
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Affiliation(s)
- Yiting Luo
- School of Economics and Management, Changsha University of Science and Technology, Changsha 410114, China and School of Business, Hunan First Normal University, Changsha, 410205, China
| | - Rongkui Su
- School of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Hongming Yang
- School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China
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20
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Matsuzawa T, Hosoya T, Yoshida S. Transition-Metal-Free Synthesis of N-Arylphenothiazines through an N- and S-Arylation Sequence. Org Lett 2021; 23:2347-2352. [PMID: 33667111 DOI: 10.1021/acs.orglett.1c00515] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An efficient synthetic method of N-arylphenothiazines from o-sulfanylanilines under transition-metal-free conditions is disclosed. An N- and S-arylation sequence of o-sulfanylanilines enabled us to synthesize a wide variety of N-arylphenothiazines. In particular, one-pot synthesis of N-arylphenothiazines was accomplished from easily available modules through preparation of o-sulfanylanilines by thioamination of aryne intermediates and following N- and S-arylation sequence.
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Affiliation(s)
- Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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21
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Cremer C, Goswami M, Rank CK, Bruin B, Patureau FW. Tellur(II)/Tellur(III)‐katalysierte dehydrierende C‐N‐Bindungsbildung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Christopher Cremer
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | | | - Christian K. Rank
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Bas Bruin
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam Niederlande
| | - Frederic W. Patureau
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
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22
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Cremer C, Goswami M, Rank CK, de Bruin B, Patureau FW. Tellurium(II)/Tellurium(III)-Catalyzed Cross-Dehydrogenative C-N Bond Formation. Angew Chem Int Ed Engl 2021; 60:6451-6456. [PMID: 33320996 PMCID: PMC7986434 DOI: 10.1002/anie.202015248] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/11/2020] [Indexed: 01/03/2023]
Abstract
The TeII /TeIII -catalyzed dehydrogenative C-H phenothiazination of challenging phenols featuring electron-withdrawing substituents under mild aerobic conditions and with high yields is described. These unexpected TeII /TeIII radical catalytic properties were characterized by cyclic voltammetry, EPR spectroscopy, kinetic experiments, and DFT calculations.
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Affiliation(s)
- Christopher Cremer
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | | | - Christian K. Rank
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Bas de Bruin
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Frederic W. Patureau
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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23
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Yuan X, Cui Y, Zhang X, Qin L, Sun Q, Duan X, Chen L, Li G, Qiu J, Guo K. Electrochemical Tri‐ and Difluoromethylation‐Triggered Cyclization Accompanied by the Oxidative Cleavage of Indole Derivatives. Chemistry 2021; 27:6522-6528. [DOI: 10.1002/chem.202005368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/25/2021] [Indexed: 01/02/2023]
Affiliation(s)
- Xin Yuan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Yu‐Sheng Cui
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Xin‐Peng Zhang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Long‐Zhou Qin
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Qi Sun
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Xiu Duan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Lin Chen
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Guigen Li
- Institute of Chemistry & Biomedical Science Nanjing University No.163, Xianlin Avenue, Qixia District Nanjing 210093 P. R. China
- Department of Chemistry and Biochemistry Texas Tech University Lubbock TX 79409-1061 USA
| | - Jiang‐Kai Qiu
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu Rd S Nanjing 211816 P. R. China
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24
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Wang D, Wan Z, Zhang H, Lei A. Electrochemical Oxidative Functionalization of Arylalkynes: Access to α,α‐Dibromo Aryl Ketones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001105] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Wang
- The Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 People's Republic of China
| | - Zhaohua Wan
- The Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 People's Republic of China
| | - Heng Zhang
- The Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 People's Republic of China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 People's Republic of China
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25
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Luo X, Li W, Lu H, Deng G, Yang Y, Yang C, Liang Y. Palladium-catalyzed cascade synthesis of spirocyclic oxindoles via regioselective C2-H arylation and C8-H alkylation of naphthalene ring. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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26
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Ni Y, Wan X, Zuo H, Bashir MA, Liu Y, Yu H, Liao RZ, Wu G, Zhong F. Iron-catalyzed cross-dehydrogenative C–H amidation of benzofurans and benzothiophenes with anilines. Org Chem Front 2021. [DOI: 10.1039/d0qo01651a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient iron-catalyzed radical cross-dehydrogenative aromatic C–H amidation provides a straightforward access to structurally diverse diarylamine derivatives incorporating benzofuran/benzothiophene motifs.
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Affiliation(s)
- Yang Ni
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Xiang Wan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Honghua Zuo
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Muhammad Adnan Bashir
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Yu Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Huaibin Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Guojiao Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Fangrui Zhong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
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27
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Bub CL, Thönnißen V, Patureau FW. Benzophenothiazine and Its Cr(III)-Catalyzed Cross Dehydrogenative Couplings. Org Lett 2020; 22:9196-9198. [PMID: 33196197 PMCID: PMC8046291 DOI: 10.1021/acs.orglett.0c03354] [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] [Indexed: 11/28/2022]
Abstract
In stark contrast to phenothiazines and their prevalence for cross-dehydrogenative amination reactions, benzophenothiazine has a pronounced preference for cross-dehydrogenative C-C bond-forming reactions. Moreover, the substrate is very versatile, leading to several new classes of C-C bond-forming reactions and many new oxidative coupling product architectures, including unprecedented indole fused paddlewheel-like structures.
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Affiliation(s)
- Christina L Bub
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Vinzenz Thönnißen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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28
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Wang ZQ, Yu JX, Bai SQ, Liu B, Wang CY, Li JH. Oxidative Dehydrogenation of Hydrazobenzenes toward Azo Compounds Catalyzed by tert-Butyl Nitrite in EtOH. ACS OMEGA 2020; 5:28856-28862. [PMID: 33195938 PMCID: PMC7659151 DOI: 10.1021/acsomega.0c04348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 10/07/2020] [Indexed: 05/02/2023]
Abstract
We describe a tert-butyl nitrite-catalyzed oxidative dehydrogenation of hydrazobenzenes for producing azobenzenes. This method proceeds at ambient temperature and under an atmospheric environment by employing eco-friendly EtOH as the medium, representing a mild, general route to the synthesis of various symmetrical and nonsymmetrical azobenzenes in excellent yields with broad functional group tolerance.
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Affiliation(s)
- Zhi-Qiang Wang
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jiang-Xi Yu
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Shan-Qin Bai
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Bang Liu
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Cheng-Yong Wang
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jin-Heng Li
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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29
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An Q, He C, Fan X, Hou C, Zhao J, Liu Y, Liu H, Ma J, Sun Z, Chu W. Synthesis of Benzazoles through Electrochemical Oxidative Cyclization Reactions. ChemElectroChem 2020. [DOI: 10.1002/celc.202000931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Qi An
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Chaoyin He
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Xiaodong Fan
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Chuanfu Hou
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Jian Zhao
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Yue Liu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Hao Liu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Junjie Ma
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Zhizhong Sun
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Wenyi Chu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
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30
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Liang Y, Lv G, Ouyang X, Song R, Li J. Recent Developments in the Polychloroalkylation by Use of Simple Alkyl Chlorides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000824] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yun‐Yan Liang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Gui‐Fen Lv
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Xuan‐Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Ren‐Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 People's Republic of China
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31
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Lv S, Han X, Wang JY, Zhou M, Wu Y, Ma L, Niu L, Gao W, Zhou J, Hu W, Cui Y, Chen J. Tunable Electrochemical C-N versus N-N Bond Formation of Nitrogen-Centered Radicals Enabled by Dehydrogenative Dearomatization: Biological Applications. Angew Chem Int Ed Engl 2020; 59:11583-11590. [PMID: 32203637 DOI: 10.1002/anie.202001510] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/08/2020] [Indexed: 12/27/2022]
Abstract
Herein, an environmentally friendly electrochemical approach is reported that takes advantage of the captodative effect and delocalization effect to generate nitrogen-centered radicals (NCRs). By changing the reaction parameters of the electrode material and feedstock solubility, dearomatization enabled a selective dehydrogenative C-N versus N-N bond formation reaction. Hence, pyrido[1,2-a]benzimidazole and tetraarylhydrazine frameworks were prepared through a sustainable transition-metal- and exogenous oxidant-free strategy with broad generality. Bioactivity assays demonstrated that pyrido[1,2-a]benzimidazoles displayed antimicrobial activity and cytotoxicity against human cancer cells. Compound 21 exhibited good photochemical properties with a large Stokes shift (approximately 130 nm) and was successfully applied to subcellular imaging. A preliminary mechanism investigation and density functional theory (DFT) calculations revealed the possible reaction pathway.
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Affiliation(s)
- Shide Lv
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Xiaoxin Han
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jian-Yong Wang
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Mingyang Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yanwei Wu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Li Ma
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Liwei Niu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Wei Gao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jianhua Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Wei Hu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yuezhi Cui
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
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32
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He WB, Gao LQ, Chen XJ, Wu ZL, Huang Y, Cao Z, Xu XH, He WM. Visible-light-initiated malic acid-promoted cascade coupling/cyclization of aromatic amines and KSCN to 2-aminobenzothiazoles without photocatalyst. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.02.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Zhao P, Wang K, Yue Y, Chao J, Ye Y, Tang Q, Liu J. Copper‐Catalyzed Aerobic Oxidative Amination of Indole Derivatives
via
Single‐Electron Transfer. ChemCatChem 2020. [DOI: 10.1002/cctc.202000284] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peizheng Zhao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Junli Chao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Yaqing Ye
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Qinghu Tang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
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34
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Yuan Y, Zheng Y, Xu B, Liao J, Bu F, Wang S, Hu JG, Lei A. Mn-Catalyzed Electrochemical Radical Cascade Cyclization toward the Synthesis of Benzo[4,5]imidazo[2,1-a]isoquinolin-6(5H)-one Derivatives. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01324] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yong Yuan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
| | - Yongfu Zheng
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Bizhen Xu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jiapeng Liao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Faxiang Bu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
| | - Jian-Guo Hu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China
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35
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Lv S, Han X, Wang J, Zhou M, Wu Y, Ma L, Niu L, Gao W, Zhou J, Hu W, Cui Y, Chen J. Tunable Electrochemical C−N versus N−N Bond Formation of Nitrogen‐Centered Radicals Enabled by Dehydrogenative Dearomatization: Biological Applications. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Shide Lv
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Xiaoxin Han
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jian‐Yong Wang
- School of Light Industry and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Mingyang Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Yanwei Wu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Li Ma
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Liwei Niu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Wei Gao
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jianhua Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Wei Hu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Yuezhi Cui
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
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36
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Yang Z, Zhang J, Hu L, Li A, Li L, Liu K, Yang T, Zhou C. Electrochemical HI-mediated Intermolecular C–N Bond Formation to Synthesize Imidazoles from Aryl Ketones and Benzylamines. J Org Chem 2020; 85:5952-5958. [DOI: 10.1021/acs.joc.0c00316] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zan Yang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jiaqi Zhang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Liping Hu
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - An Li
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Lijun Li
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Kun Liu
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Tao Yang
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Congshan Zhou
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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37
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Yue X, He X, Wu Y, Hu M, Wu S, Xie Y, Li J. Metal‐Free Oxidative Decarboxylative Heteroannulation of Alkynyl Carboxylic Acids with Sulfinates and
tert
‐Butyl Nitrite toward 2,2‐Disulfonyl‐2
H
‐Azirines. ChemCatChem 2020. [DOI: 10.1002/cctc.201902400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xin Yue
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Xingyi He
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Yan‐Chen Wu
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Ming Hu
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Shuang Wu
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Ye‐Xiang Xie
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
| | - Jin‐Heng Li
- State Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P.R. China
- Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 P.R. China
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38
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Yang Y, Zhang D, Vessally E. Direct Amination of Aromatic C-H Bonds with Free Amines. Top Curr Chem (Cham) 2020; 378:37. [PMID: 32236795 DOI: 10.1007/s41061-020-0300-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 03/07/2020] [Indexed: 02/01/2023]
Abstract
Aromatic amines belong to a highly important class of organic compounds which are found in various natural products, functional materials, and pharmaceutical agents. Their prevalence has sparked continuing interest in the development of highly efficient and environmentally benign synthetic strategies for the construction of these compounds. Cross-dehydrogenative coupling reactions between two unmodified C(X)-H bonds have recently emerged as a versatile and powerful strategy for the fabrication of new C(X)-C(X) bonds. In this context, several procedures have been reported for the synthesis of aromatic amines through the direct amination of aromatic C-H bonds with free amines. This review highlights recent advances and progress in this appealing research arena, with special emphasis on the mechanistic features of the reactions.
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Affiliation(s)
- Yafeng Yang
- School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Dangquan Zhang
- School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University, Tehran, Iran
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39
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Sigmund LM, Ebner F, Jöst C, Spengler J, Gönnheimer N, Hartmann D, Greb L. An Air-Stable, Neutral Phenothiazinyl Radical with Substantial Radical Stabilization Energy. Chemistry 2020; 26:3152-3156. [PMID: 31944465 PMCID: PMC7079145 DOI: 10.1002/chem.201905238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Indexed: 01/12/2023]
Abstract
The vital effect of radical states on the pharmacological activity of phenothiazine-based drugs has long been speculated. Whereas cationic radicals of N-substituted phenothiazines show high stability, the respective neutral radicals of N-unsubstituted phenothiazines have never been isolated. Herein, the 1,9-diamino-3,7-di-tert-butyl-N1 ,N9 -bis(2,6-diisopropylphenyl)-10H-phenothiazin-10-yl radical (SQH2 . ) is described as the first air-stable, neutral phenothiazinyl free radical. The crystalline dark-blue species is characterized by means of EPR and UV/Vis/near-IR spectroscopy, as well as cyclic voltammetry, spectro-electrochemical analysis, single-crystal XRD, and computational studies. The SQH2 . radical stands out from other aminyl radicals by an impressive radical stabilization energy and its parent amine has one of the weakest N-H bond dissociation energies ever determined. In addition to serving as open-shell reference in medicinal chemistry, its tridentate binding pocket or hydrogen-bond-donor ability might enable manifold uses as a redox-active ligand or proton-coupled electron-transfer reagent.
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Affiliation(s)
- Lukas M. Sigmund
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Fabian Ebner
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Christoph Jöst
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Jonas Spengler
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Nils Gönnheimer
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Deborah Hartmann
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Lutz Greb
- Anorganisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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40
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Mayer L, May L, Müller TJJ. The interplay of conformations and electronic properties in N-aryl phenothiazines. Org Chem Front 2020. [DOI: 10.1039/d0qo00182a] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Extra and intra conformations govern electronic properties of N-aryl phenothiazines as shown by combined experimental and computational structure–property relationships.
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Affiliation(s)
- Laura Mayer
- Heinrich-Heine-Universität Düsseldorf
- Institut für Organische Chemie und Makromolekulare Chemie
- D-40225 Düsseldorf
- Germany
| | - Lars May
- Heinrich-Heine-Universität Düsseldorf
- Institut für Organische Chemie und Makromolekulare Chemie
- D-40225 Düsseldorf
- Germany
| | - Thomas J. J. Müller
- Heinrich-Heine-Universität Düsseldorf
- Institut für Organische Chemie und Makromolekulare Chemie
- D-40225 Düsseldorf
- Germany
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41
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Jiang SS, Xiao YT, Wu YC, Luo SZ, Song RJ, Li JH. Manganese(iii)-promoted tandem phosphinoylation/cyclization of 2-arylindoles/2-arylbenzimidazoles with disubstituted phosphine oxides. Org Biomol Chem 2020; 18:4843-4847. [PMID: 32608447 DOI: 10.1039/d0ob00877j] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A simple and practical method for the synthesis of phosphoryl-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and benzimidazo[2,1-a]isoquinolin-6(5H)-ones through manganese(iii)-promoted tandem phosphinoylation/cyclization of 2-arylindoles or 2-arylbenzimidazoles with disubstituted phosphine oxides was developed. In this transformation, new C-P bond and C-C bond were constructed simultaneously under silver-free conditions, exhibiting a broad substrate scope. It was noted that not only diarylphosphine oxides but also dialkyl and arylalkyl-phosphine oxides were compatible with the conditions.
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Affiliation(s)
- Shuai-Shuai Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yu-Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shu-Zheng Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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42
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Li W, Zhang C, Lu H, Wang Y, Deng G, Liang Y, Yang Y. Pd-Catalyzed one-pot synthesis of vinylsilanes via a three-component tandem reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00601g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A palladium-catalyzed three-component tandem reaction for stereoselective assembly of various tri- or tetrasubstituted vinylsilanes is established.
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Affiliation(s)
- Wenguang Li
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Chao Zhang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Haiyan Lu
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Yajun Wang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research
- Ministry of Education
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- College of Chemistry and Chemical Engineering
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43
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Yang YZ, Wu YC, Song RJ, Li JH. Electrochemical dehydrogenative cross-coupling of xanthenes with ketones. Chem Commun (Camb) 2020; 56:7585-7588. [DOI: 10.1039/d0cc02580a] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An oxidant-free electrochemical dehydrogenative cross-coupling of xanthenes and ketones for the preparation of functionalized 9-alkyl-9H-xanthenes was developed.
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Affiliation(s)
- Yong-Zheng Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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44
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Wu YC, Song RJ, Li JH. Recent advances in photoelectrochemical cells (PECs) for organic synthesis. Org Chem Front 2020. [DOI: 10.1039/d0qo00486c] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The application of PECs in organic synthesis reactions and their reaction mechanisms are highlighted.
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Affiliation(s)
- Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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45
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Cao AZ, Xiao YT, Wu YC, Song RJ, Xie YX, Li JH. Copper-catalyzed C–H [3 + 2] annulation of N-substituted anilines with α-carbonyl alkyl bromides via C(sp3)–Br/C(sp2)–H functionalization. Org Biomol Chem 2020; 18:2170-2174. [DOI: 10.1039/d0ob00399a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A copper-catalyzed C–H [3 + 2] annulation of N-substituted anilines with α-carbonyl alkyl bromides for the synthesis of 3,3′-disubstituted oxindoles is developed.
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Affiliation(s)
- An-Zhu Cao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yu-Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ye-Xiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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46
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Yuan Y, Lei A. Electrochemical Oxidative Cross-Coupling with Hydrogen Evolution Reactions. Acc Chem Res 2019; 52:3309-3324. [PMID: 31774271 DOI: 10.1021/acs.accounts.9b00512] [Citation(s) in RCA: 380] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oxidative cross-coupling has proved to be one of the most straightforward strategies for forming carbon-carbon and carbon-heteroatom bonds from easily available precursors. Over the past two decades, tremendous efforts have been devoted in this field and significant advances have been achieved. However, in order to remove the surplus electrons from substrates for chemical bonds formation, stoichiometric oxidants are usually needed. Along with the development of modern sustainable chemistry, considerable efforts have been devoted to perform the oxidative cross-coupling reactions under external-oxidant-free conditions. Electrochemical synthesis is a powerful and environmentally benign approach, which can not only achieve the oxidative cross-couplings under external-oxidant-free conditions, but also release valuable hydrogen gas during the chemical bond formation. Recently, the electrochemical oxidative cross-coupling with hydrogen evolution reactions has been significantly explored. This Account presents our recent efforts toward the development of electrochemical oxidative cross-coupling with hydrogen evolution reactions. (1) We explored the oxidative cross-coupling of thiols/thiophenols with arenes, heteroarenes, and alkenes for C-S bond formation. (2) Using the strategy of electrochemical oxidative C-H/N-H cross-coupling with hydrogen evolution, we successfully realized the C-H amination of phenols, anilines, imidazopyridines, and even ethers. (3) Employing halide salts as the green halogenating reagents, we developed a clean C-H halogenation protocol under electrochemical oxidation conditions. To address the limitation that this reaction had to carry out in aqueous solvent, we also developed an alternative method that uses CBr4, CHBr3, CH2Br2, CCl3Br, and CCl4 as halogenating reagents and the mixture of acetonitrile and methanol as cosolvent. (4) We also developed an approach for constructing C-O bonds in a well-developed electrochemical oxidative cross-coupling with hydrogen evolution manner. (5) Under mild external-oxidant-free electrochemical conditions, we realized the C(sp2)-H and C(sp3)-H phosphonylation with modest to high yields. (6) We successfully achieved the S-H/S-H cross-coupling with hydrogen evolution under electrochemical oxidation conditions. By anodic oxidation instead of chemical oxidants, the overoxidation of thiols and thiophenols was well avoided. (7) The methods for constructing structurally diverse heterocyclic compounds were also developed via the electrochemical oxidative annulations. (8) We have also applied the electrochemical oxidative cross-coupling with hydrogen evolution strategy to the alkenes difunctionalization for constructing multiple bonds in one step, such as C-S/C-O bonds, C-S/C-N bonds, C-Se/C-O bonds, and C-Se/C-N bonds. We hope our studies will stimulate the research interest of chemists and pave the way for the discovery of more electrochemical oxidative cross-coupling with hydrogen evolution reactions.
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Affiliation(s)
- Yong Yuan
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People’s Republic of China
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
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47
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Vemuri PY, Wang Y, Patureau FW. Para-Selective Dehydrogenative Phenothiazination of Hydroquinolines and Indolines. Org Lett 2019; 21:9856-9859. [PMID: 31793299 DOI: 10.1021/acs.orglett.9b03729] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nitrogen-containing heterocyclic systems, such as hydroquinolines, indolines, and phenothiazines, are prevalent in pharmaceuticals, natural products, and organic materials. It is therefore important to develop novel reaction strategies that give access to such biologically relevant scaffolds. This report demonstrates a novel robust, para-selective C-N bond formation between phenothiazines and quinolines or indolines under extremely mild and user-friendly conditions. Furthermore, we bring forward a surprising discovery arising from the homocoupling of indolines through an unprecedented C5-H functionalization.
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Affiliation(s)
- Pooja Y Vemuri
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , 52074 Aachen , Germany
| | - Yongchao Wang
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , 52074 Aachen , Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , 52074 Aachen , Germany
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48
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Lu F, Li J, Wang T, Li Z, Jiang M, Hu X, Pei H, Yuan F, Lu L, Lei A. Electrochemical Oxidative C−H Sulfonylation of Anilines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900447] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fangling Lu
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Jun Li
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Tao Wang
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Zhen Li
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Minbao Jiang
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Xingxing Hu
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Hongqiao Pei
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Feng Yuan
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
| | - Lijun Lu
- College of Chemistry and Molecular Sciences The Institute for Advanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
| | - Aiwen Lei
- College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang 330022, Jiangxi P. R. China
- College of Chemistry and Molecular Sciences The Institute for Advanced Studies (IAS)Wuhan University Wuhan, Hubei 430072 P. R. China
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Jiang M, Yuan Y, Wang T, Xiong Y, Li J, Guo H, Lei A. Exogenous-oxidant- and catalyst-free electrochemical deoxygenative C2 sulfonylation of quinoline N-oxides. Chem Commun (Camb) 2019; 55:13852-13855. [DOI: 10.1039/c9cc07777d] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
By employing quinoline N-oxides as the starting materials, the electrochemical C–H sulfonylation of electron-deficient quinolines was indirectly achieved at room temperature.
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Affiliation(s)
- Minbao Jiang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yong Yuan
- College of Chemistry and Molecular Sciences
- The Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Tao Wang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yunkui Xiong
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jun Li
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Huijiao Guo
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis
- Jiangxi Province's Key Laboratory of Chemical Biology
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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