1
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Chai H, Wang X, Ma X, Zhen X, Qin Y, Qi L, Xu Z, Li F, Zhu W. Light-Activated BF 3·Et 2O-Promoted Generation of Singlet Oxygen and Cascade Reaction of Unsaturated Amides. Org Lett 2024; 26:1775-1779. [PMID: 38408019 DOI: 10.1021/acs.orglett.3c04172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Herein, BF3·Et2O-promoted O-insertion/spirocyclization/fluorination/ring-expansion of unsaturated amides to synthesis of spiro[benzo[b]-[1,4]dioxepine-3,5'-oxazole] skeletons in the presence of natural light and O2 (3Σg-) was reported. Air was the oxygen source of the 1O2-generation and O-insertion reaction under metal-free and mild conditions. BF3·Et2O played multiple roles, such as Lewis acid, activating reagent, and fluorine source in the reported cascade. A mechanism involving 1O2 generation/activation of double bond/O-insertion/spirocyclization/fluorination/ring expansion was supposed.
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Affiliation(s)
- Hongli Chai
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Xueqing Wang
- Department of Pharmacy, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Xingyu Ma
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Xiang Zhen
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Yuji Qin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Liang Qi
- Department of Pharmacy, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zhaoqing Xu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Fuchong Li
- Lanzhou Chemical Research Center of PetroChina, Lanzhou, 730000, China
| | - Weiwei Zhu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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2
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Chen XH, Lhazom T, Cui HL. NH 4OAc/DMSO-Promoted Benzylation of Pyrrolo[2,1- a]isoquinolines. J Org Chem 2023; 88:13598-13609. [PMID: 37728513 DOI: 10.1021/acs.joc.3c01302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Benzylation of pyrrolo[2,1-a]isoquinoline derivatives has been realized with various phenols by the use of ammonium acetate as a promoter (20 examples, up to 84% yield). DMSO served as the source of methylene and solvent. The employment of iron chloride as a catalyst can also afford the desired benzylated products in moderate to good yields (11 examples, up to a 74% yield).
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Affiliation(s)
- Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P. R. China
| | - Tsesong Lhazom
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P. R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P. R. China
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3
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Li WZ, Zhang W, Chen XH, Wang ZD, Cui HL. Modification of Pyrrolo[2,1- a]isoquinolines and Polysubstituted Pyrroles via Methylenation with Acetyl Chloride and Dimethylsulfoxide. J Org Chem 2022; 87:11491-11502. [PMID: 35951357 DOI: 10.1021/acs.joc.2c01090] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A convenient synthesis of methylene-bridged pyrrolo[2,1-a]isoquinolines has been developed. Treatment of pyrroloisoquinolines with acetyl chloride and dimethylsulfoxide (DMSO) at ambient temperature afforded bispyrroloisoquinolylmethanes in 17-85% yields. This reaction system can also be expanded to the synthesis of bispyrrolylmethanes (34-94% yields). Easy chemical transformation of methylene-bridged pyrroloisoquinoline provided an unsymmetric acid and amide possessing a privileged framework.
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Affiliation(s)
- Wan-Zhen Li
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan District, Chongqing 402160, P. R. China
| | - Wei Zhang
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan District, Chongqing 402160, P. R. China
| | - Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan District, Chongqing 402160, P. R. China
| | - Zhao-Dong Wang
- College of Chemistry and Environmental Engineering, Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing 402160, P. R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan District, Chongqing 402160, P. R. China
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4
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Recent Advances of Green Catalytic System I2/DMSO in C–C and C–Heteroatom Bonds Formation. Catalysts 2022. [DOI: 10.3390/catal12080821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Developing a green, practical and efficient method for the formation of C–C and C–Heteroatom bonds is an important topic in modern organic synthetic chemistry. In recent years, the I2/DMSO catalytic system has attracted wide attention because of its green, high efficiency, atomic economy, low cost, mild reaction conditions and it is environment-friendly, which is more in line with the requirements of sustainable chemistry. Heteroatom-containing compounds have shown lots of important applications in pharmaceutical synthesis, agrochemicals, material chemistry and organic dyes. At present, the I2/DMSO catalytic system has been successfully applied to the synthesis of various heteroatom-containing compounds. The C–C and C–Heteroatom bonds have been formed efficiently, which has been proved to be a green and mild catalytic system. In this review, the research achievements of the I2/DMSO catalytic system in the formation of C–C and C–Heteroatom bonds from 2015 to date are described, and the research area is prospected. This review attempts to reveal the general law of iodine catalysis and lay a foundation for the design of new reactions.
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5
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Chen XH, Cui HL. Modification of Pyrrolo[2,1‐a]isoquinolines via Iron‐Catalyzed Aminomethylenation with Amines and Dimethyl Sulfoxide. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200807] [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)
- Xiao-Hui Chen
- Chongqing University of Arts and Sciences Laboratory of Asymmetric Synthesis CHINA
| | - Hai-Lei Cui
- Chongqing University of Arts and Sciences Laboratory of Asymmetric Synthesis 319 Honghe Ave, Yongchuan, Chongqing 402160 Chongqing CHINA
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6
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Li JQ, Chen XH, Cui HL. Modification of Pyrrolo[2,1- a]isoquinolines and Pyrrolo[1,2- a]quinolines with Ammonium Acetate and Dimethyl Sulfoxide via Methylthiomethylation. J Org Chem 2022; 87:2421-2434. [PMID: 35138091 DOI: 10.1021/acs.joc.1c02322] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An efficient methylthiomethylation of pyrroloisoquinolines and pyrroloquinolines has been reached by the use of ammonium acetate and dimethyl sulfoxide. Methylthiomethylated heterocycles can be obtained in moderate to good yields in most cases, while trace amounts to good yields of methylene-bridged products can be observed. Choice of DMSO activator and its amount have a great influence on the chemoselectivity of this process. It is worth noting that this process can also be scalable. Another feature of this process is that the product can be transformed to sulfone and sulfoxide easily.
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Affiliation(s)
- Jia-Qin Li
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
| | - Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China.,Tonichem Pharmaceutical Technology Co., Ltd, Huizhou 516008, P.R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
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7
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Chen XH, Xiao X, Li JQ, Li WZ, Cui HL. Modification of pyrrolo[2,1-a]isoquinolines via dicarbonylation with dimethyl sulfoxide and arylacyl bromides affording 1,2-dicarbonylated pyrrolo[2,1-a]isoquinolines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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8
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Deka B, Rastogi GK, Deb ML, Baruah PK. Ten Years of Glory in the α-Functionalizations of Acetophenones: Progress Through Kornblum Oxidation and C-H Functionalization. Top Curr Chem (Cham) 2021; 380:1. [PMID: 34746982 DOI: 10.1007/s41061-021-00356-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022]
Abstract
This review article focuses on the α-functionalization of acetophenones involving Kornblum oxidation and C-H functionalizations. Although various other strategies, such as classical approaches, enamine approaches and umpolung strategy are also known for this functionalization, here we discuss mainly the Kornblum oxidation approach and C-H functionalization strategy as they have advantages over the others. In Kornblum oxidation, the reaction uses iodine and dimethylsulfoxide and proceeds through the formation of arylglyoxal as the key intermediate. In C-H functionalization, the reaction requires metal, or metal-free catalyst, and generates radical intermediate in most cases. α-Functionalization of acetophenones is very important because of their huge applications in the synthesis of various natural products and pharmaceuticals and, therefore, a number of research articles have been published in this area. However, no review articles are available so far. In this article, we present a succinct discussion of various important and novel reactions, along with their mechanisms, published since 2012 to date. We believe that this first review article in this field will give readers one-stop information on this topic and encourage further intriguing work in this area.
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Affiliation(s)
- Bhaskar Deka
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Gaurav K Rastogi
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Mohit L Deb
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Pranjal K Baruah
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India.
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9
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Zhao W, Zhang C, Zhong P, Zhou W, Zhang C, Cui DM. Diversity-oriented synthesis of imidazo[1,2- a][1,3,5]triazine derivatives from 2-amine-[1,3,5]triazines with ketones. Chem Commun (Camb) 2021; 57:10715-10718. [PMID: 34581713 DOI: 10.1039/d1cc04294g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An I2-mediated annulation of 2-amino[1,3,5]triazines and ketones for the synthesis of imidazo[1,2-a][1,3,5]triazines is presented. Electron rich, or electron poor acetophenone and heterocycle ketones, as well as propiophenone, are functionalized with 2-amino-[1,3,5]triazines. Another class of imidazo[1,2-a][1,3,5]triazines tethered with an additional 1,2-dicarbonyl motif through the combination of annulation and C-H functionalization were obtained instead by changing the reaction conditions. The new methods are practically straightforward and applicable on a gram scale.
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Affiliation(s)
- Wanqiu Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Cheng Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Pengzhen Zhong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Wei Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Chen Zhang
- School of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dong-Mei Cui
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
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11
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Zhang X, Miao X, Jiang H, Ge F, Sun J, Zhang R, Ouyang Q, Fan W, Zhu Y, Sun Y. Iodine‐Promoted Synthesis of Dipyrazolo/Diuracil‐Fused Pyridines and
o
‐Amino Diheteroaryl ketones via Oxidative Domino Annulation of 2/4‐Methylazaarenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100839] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xin‐Ke Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Xiao‐Yu Miao
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Hui‐Ru Jiang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Fei Ge
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Jia‐Chen Sun
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Rui‐Ying Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Qin Ouyang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Wei‐Yu Fan
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yan‐Ping Zhu
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yuan‐Yuan Sun
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
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12
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Moghaddam FM, Jarahiyan A, Pourjavadi A. A Regioselective Approach to Synthesize Indolyl Diketone Derivatives via Magnetic Polymeric Copper-Catalyst. Catal Letters 2021. [DOI: 10.1007/s10562-021-03697-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Zhuang S, Tang Y, He C, Chen X, Xue W, Wu Y, Wu A. Copper‐catalyzed Reaction of Anthranils with Methyl Ketones: Site‐Selective C5‐Dicarbonylation of Anthranils. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001334] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Shi‐Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Yong‐Xing Tang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Cai He
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Xiang‐Long Chen
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - Wei‐Jian Xue
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 People's Republic of China
| | - Yan‐Dong Wu
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
| | - An‐Xin Wu
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 People's Republic of China
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14
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Liu C, Chen D, Fu Y, Wang F, Luo J, Huang S. Sulfoxide Reduction/C(sp 3)-S Metathesis Cascade in Ionic Liquid. Org Lett 2020; 22:5701-5705. [PMID: 32614190 DOI: 10.1021/acs.orglett.0c02089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A sulfoxide reduction/C-S bond metathesis cascade between sulfoxides and alkyl bromides has been developed to access high-value sulfides without the use of any catalysts or bases. In this cascade, classical Kornblum oxidation is employed to reduce sulfoxides with alkyl bromides in ionic liquid. This protocol features high functional tolerance, mild conditions, promising scalability, and sustainable solvents.
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Affiliation(s)
- Chenjing Liu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Yuanyuan Fu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
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15
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Liu S, Zhao F, Chen X, Deng G, Huang H. Aerobic Oxidative Functionalization of Indoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000285] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Saiwen Liu
- College of Materials and Chemical Engineering Hunan City University Yiyang 413000 Hunan People's Republic of China
| | - Feng Zhao
- Key Laboratory for Antibody-based Drug and Intelligent Delivery System of Hunan Province Key Laboratory of Dong Medicine of Hunan Province School of Pharmaceutical Sciences Hunan University of Medicine Huaihua 418000 People's Republic of China
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Xing Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education College of Chemistry Xiangtan University Xiangtan 411105 People's Republic of China
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16
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Xu Q, Li B, Ma Y, Sun F, Gao Y, Ye N. K 2S 2O 8-HFIP synergistically promoted para-selective sp 3 C-H bond diarylation of glycine esters. Org Biomol Chem 2020; 18:666-670. [PMID: 31894805 DOI: 10.1039/c9ob02489a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free K2S2O8-HFIP synergistically promoted double Friedel-Crafts alkylation between a glycine derivative and N-substituted aniline was developed to efficiently synthesize diarylmethane derivatives with high para-selectivity. The reaction proceeded smoothly in the absence of any metal and ligand, and exhibited a good tolerance of functional groups.
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Affiliation(s)
- Qingfeng Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Bang Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Yujie Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Fei Sun
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Yanan Gao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Na Ye
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
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17
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Wang F, Zhang X, He Y, Fan X. Synthesis of β-Dicarbonylated Tetrahydropiperidines via Direct Oxidative Cross-Coupling between Different C(sp3)–H Bonds. J Org Chem 2019; 85:2220-2230. [DOI: 10.1021/acs.joc.9b02924] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fang Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, 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 Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, 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 Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yan He
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, 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 Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, 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 Engineering, School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
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18
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Rastogi GK, Deka B, Deb ML, Baruah PK. Diastereoselective sp3-C-H Functionalization of Arylmethyl Ketones and Transformation of E
- to Z
-Products Through Photocatalysis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Gaurav K. Rastogi
- Department of Applied Sciences, GUIST; Gauhati University; -781014 Guwahati Assam India
- Department of Applied Organic Chemistry; CSIR-NEIST; -785006 Jorhat Assam India
| | - Bhaskar Deka
- Department of Applied Sciences, GUIST; Gauhati University; -781014 Guwahati Assam India
| | - Mohit L. Deb
- Department of Applied Sciences, GUIST; Gauhati University; -781014 Guwahati Assam India
| | - Pranjal K. Baruah
- Department of Applied Sciences, GUIST; Gauhati University; -781014 Guwahati Assam India
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19
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Guo T, Fu XH, Zhang M, Li YL, Ma YC. Catalyst-free direct cross-dehydrogenative coupling of imidazoheterocycles with glyoxal hydrates: an efficient approach to 1,2-diketones. Org Biomol Chem 2019; 17:3150-3158. [PMID: 30838358 DOI: 10.1039/c9ob00095j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient and convenient methodology for catalyst-free cross-dehydrogenative coupling of imidazoheterocycles with glyoxal hydrates in good yields was developed. This methodology exhibits a broad substrate scope and excellent functional group tolerance and offers a straightforward means to produce different heterocycles such as imidazoheterocyclic quinoxaline, imidazoheterocyclic hydantoin and imidazoheterocyclic α-keto ketamine under relatively mild conditions. Biological evaluation showed that the most potent compound 3m possesses significant in vitro antiproliferative activities against human-derived lung cancer cell lines with an IC50 value of 14.8 μM.
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Affiliation(s)
- Tao Guo
- College of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
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20
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Zhang Y, Yang M, Jia C, Ji M. Iodine-Promoted Domino Oxidative Cyclization for the One-Pot Synthesis of Novel Fused Four-Ring Quinoxaline Fluorophores by sp 3 C-H Functionalization. Chemistry 2019; 25:13709-13713. [PMID: 31498477 DOI: 10.1002/chem.201903688] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/05/2019] [Indexed: 02/02/2023]
Abstract
A method for the synthesis of novel fused four-ring quinoxaline skeleton has been described by an I2 promoted sp3 C-H functionalization between 1,2,3,3-tetramethyl-3H-indolium iodides and 1,2-diamines. This transformation proceeds smoothly under metal- and peroxide-free conditions through a sequential iodination, oxidation, annulation and rearrangement. Moreover, 8,9-dichloro-5,12,12-trimethyl-2-(trifluoromethyl)-5,12-dihydroquinolino[2,3-b]quinoxaline showed good photophysical properties and was used in live cell imaging, indicating the potential value of this skeleton as a fluorophore in probes.
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Affiliation(s)
- Yong Zhang
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Min Yang
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Chengli Jia
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Min Ji
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
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21
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Nandwana N, Patel OPS, Srivathsa MR, Kumar A. Dual Role of Glyoxal in Metal-Free Dicarbonylation Reaction: Synthesis of Symmetrical and Unsymmetrical Dicarbonyl Imidazoheterocycles. ACS OMEGA 2019; 4:10140-10150. [PMID: 31460106 PMCID: PMC6648449 DOI: 10.1021/acsomega.9b00716] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/22/2019] [Indexed: 05/28/2023]
Abstract
A practical and efficient method has been developed for the dicarbonylation of imidazoheterocycles using glyoxals as dicarbonyl precursors under metal-free conditions in acetic acid. A series of symmetrical and unsymmetrical dicarbonyl imidazoheterocycles was synthesized in good yields. Aryl and alkyl glyoxals also demonstrated excellent reactivity under similar reaction conditions and delivered corresponding dicarbonyl imidazoheterocycles in high yields. It is believed that the glyoxal plays a dual role both as a dicarbonyl source and as an oxidant in this transformation. A probable mechanistic pathway has been proposed based on control experiments and electrospray ionization high-resolution mass spectrometry analysis.
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22
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Hua J, Xu J, Xu J, Zhou B, Zhang D, Yang Z, Fang Z, Guo K. Oxidative Thioesterification of Alkenes Mediated by 1,3-Dibromo-5,5-dimethylhydantoin and DMSO for the Synthesis of α-Ketothioesters. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900585] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jiawei Hua
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Jiaqi Xu
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Jia Xu
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Bochao Zhou
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Dong Zhang
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Zhao Yang
- Department; College of Engineering; China Pharmaceutical University; 24 Tongjiaxiang 210003 Nanjing China
| | - Zheng Fang
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
| | - Kai Guo
- Department: College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
- Department; State Key Laboratory of Materials-Oriented Chemical, Engineering; Nanjing Tech University; 30 Puzhu Rd S. 211816 Nanjing China
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23
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Cu(I)/Fe(III) promoted dicarbonylation of aminopyrazole via oxidative C H coupling with methyl ketones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Pan D, Chu J, Gao X, Wang C, Meng Q, Chi H, Dong Y, Duan C, Zhang Z. Regioselective N-1 and C-2 diacylation of 3-substituted indoles with arylglyoxal hydrates for the synthesis of indolyl diketones. Org Biomol Chem 2019; 16:6998-7003. [PMID: 30229781 DOI: 10.1039/c8ob01776j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A highly regioselective N-1 and C-2 diacylation of 3-substituted indoles with arylglyoxal hydrates to afford N-1 and C-2 indolyl diketones in moderate to good yields is described. Notably, the control of regioselectivity is achieved by small changes in the Cu catalyst, additive and solvent. Importantly, the intermediates for N-1 and C-2 diacylation were detected and two plausible pathways were also proposed.
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Affiliation(s)
- Dalong Pan
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, University of Science and Technology Liaoning, Anshan 114051, P. R. China.
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25
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Zhao F, Li P, Liu X, Jia X, Wang J, Liu H. Recent Advances in the Addition of Amide/Sulfonamide Bonds to Alkynes. Molecules 2019; 24:E164. [PMID: 30621120 PMCID: PMC6337386 DOI: 10.3390/molecules24010164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/27/2018] [Accepted: 12/27/2018] [Indexed: 11/30/2022] Open
Abstract
The addition of amide/sulfonamide bonds to alkynes is not only one of the most important strategies for the direct functionalization of carbon⁻carbon triple bonds, but also a powerful tool for the downstream transformations of amides/sulfonamides. The present review provides a comprehensive summary of amide/sulfonamide bond addition to alkynes, including direct and metal-free aminoacylation, based-promoted aminoacylation, transition-metal-catalyzed aminoacylation, organocatalytic aminoacylation and transition-metal-catalyzed aminosulfonylation of alkynes up to December 2018. The reaction conditions, regio- and stereoselectivities, and mechanisms are discussed and summarized in detail.
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Affiliation(s)
- Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Pinyi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Xiaoyan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Jiang Wang
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China.
| | - Hong Liu
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China.
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26
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Guo S, Fang Z, Zhou B, Hua J, Dai Z, Yang Z, Liu C, He W, Guo K. Cu/Pd-Catalyzed chemoselective synthesis of C-3 dicarbonyl indoles and bis(indolyl)alkanes from aldehydes and indoles. Org Chem Front 2019. [DOI: 10.1039/c8qo01206g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu/Pd-catalyzed chemoselective synthesis of C-3 dicarbonyl indoles and bis(indolyl)alkanes from aldehydes and indoles has been achieved, which has good substrate universality and high efficacy on large-scale.
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Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Bochao Zhou
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing 210003
- PR China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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27
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Yu Y, Su Z, Cao H. Strategies for Synthesis of Imidazo[1,2-a
]pyridine Derivatives: Carbene Transformations or C−H Functionalizations. CHEM REC 2018; 19:2105-2118. [DOI: 10.1002/tcr.201800168] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/22/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Yue Yu
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
| | - Zhengquan Su
- School of Public Health; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
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28
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Hu B, Zhou P, Zhang Q, Wang Y, Zhao S, Lu L, Yan S, Yu F. Metal-Free Oxidative Thioesterification of Methyl Ketones with Thiols/Disulfides for the Synthesis of α-Ketothioesters. J Org Chem 2018; 83:14978-14986. [PMID: 30468069 DOI: 10.1021/acs.joc.8b02235] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A direct Csp3-H bond oxidative thioesterification of methyl ketones with aromatic thiols/disulfides promoted by TBAI/K2S2O8 has been developed. The reaction provides successfully a simple and efficient method for the synthesis of functionalized α-ketothioesters of aromatic thiols. This practical methodology exhibits readily available starting materials, large-scale applicability, synthetic application, and broad functional group tolerance. A possible mechanism for the transformation is proposed.
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Affiliation(s)
- Biao Hu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Pan Zhou
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Qiaohe Zhang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Yanqin Wang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Siyun Zhao
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Lingling Lu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Shengjiao Yan
- School of Chemical Science and Technology , Yunnan University , Kunming 650091 , People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
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29
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Zhou J, Li J, Li Y, Wu C, He G, Yang Q, Zhou Y, Liu H. Direct Synthesis of 3-Acylindoles through Rhodium(III)-Catalyzed Annulation of N-Phenylamidines with α-Cl Ketones. Org Lett 2018; 20:7645-7649. [DOI: 10.1021/acs.orglett.8b03383] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianhui Zhou
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Jian Li
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Yazhou Li
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Chenglin Wu
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Guoxue He
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Qiaolan Yang
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Yu Zhou
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Hong Liu
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
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30
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TBAI/K
2
S
2
O
8
‐Promoted Multicomponent Domino Reaction of Aryl Methyl Ketones, Enaminones, and Indoles: A Facile Access to Multisubstituted 3‐Indolyl‐pyrroles. ChemistrySelect 2018. [DOI: 10.1002/slct.201803317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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31
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Chalotra N, Ahmed A, Rizvi MA, Hussain Z, Ahmed QN, Shah BA. Photoredox Generated Vinyl Radicals: Synthesis of Bisindoles and β-Carbolines. J Org Chem 2018; 83:14443-14456. [DOI: 10.1021/acs.joc.8b02193] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Neha Chalotra
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Ajaz Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | | | - Zakir Hussain
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
| | - Qazi Naveed Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Bhahwal Ali Shah
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
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32
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Ambethkar S, Kalaiselvi M, Ramamoorthy J, Padmini V. I 2-Catalyzed Oxidative Cross-Coupling Reaction of Methyl Ketones and 2-(2-Aminophenyl) Benzimidazole: Facile Access to Benzimidazo[1,2- c]quinazoline. ACS OMEGA 2018; 3:5021-5028. [PMID: 31458715 PMCID: PMC6641929 DOI: 10.1021/acsomega.8b00067] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/23/2018] [Indexed: 05/25/2023]
Abstract
A general and efficient iodine-catalyzed metal-free oxidative cross-coupling reaction of methyl ketones with 2-(1H-benzo[d]imidazol-2-yl)aniline has been established. This is a new synthetic strategy for the synthesis of benzimidazo[1,2-c]quinazoline derivatives involving C(sp3)-H oxidation, condensation, and cyclization processes.
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33
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Shaik SP, Sultana F, Ravikumar A, Sunkari S, Alarifi A, Kamal A. Regioselective oxidative cross-coupling of benzo[d]imidazo[2,1-b]thiazoles with styrenes: a novel route to C3-dicarbonylation. Org Biomol Chem 2018; 15:7696-7704. [PMID: 28872171 DOI: 10.1039/c7ob01778b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel I2 promoted, highly efficient metal-free and peroxide-free greener domino protocol for the C3-dicarbonylation of benzo[d]imidazo[2,1-b]thiazoles (IBTs) with styrenes has been developed via oxidative cleavage of the C(sp2)-H bond, followed by C3-nucleophilic attack of IBT and oxidation. Interestingly, under these conditions 2-(benzo[d]imidazo[2,1-b]thiazol-2-yl)aniline gave the benzo[4',5']thiazolo[2',3':2,3]imidazo[4,5-c]quinoline derivative via oxidative cleavage of the C(sp2)-H bond, followed by Pictet-Spengler cyclization and aromatization. This method offers the advantages of broad substrate scope, ecofriendly feature and high atom economy apart from higher yields.
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Affiliation(s)
- Siddiq Pasha Shaik
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.
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34
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Deb ML, Saikia BS, Rastogi GK, Baruah PK. Oxidative Coupling of Naphthols to Ketones: An Approach to 1,2-Diketones. ChemistrySelect 2018. [DOI: 10.1002/slct.201702831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences; GUIST; Gauhati University; Guwahati-781014, Assam India
| | - B-Shriya Saikia
- Department of Applied Sciences; GUIST; Gauhati University; Guwahati-781014, Assam India
| | - Gaurav K. Rastogi
- Department of Applied Sciences; GUIST; Gauhati University; Guwahati-781014, Assam India
- Applied Organic Chemistry; CSIR-NEIST; Jorhat-785006 Assam
| | - Pranjal K. Baruah
- Department of Applied Sciences; GUIST; Gauhati University; Guwahati-781014, Assam India
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35
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Gao Q, Liu Z, Wang Y, Wu X, Zhang J, Wu A. I2
-Triggered Reductive Generation of N-Centered Iminyl Radicals: An Isatin-to-Quinoline Strategy for the Introduction of Primary Amides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701610] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qinghe Gao
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Zhaomin Liu
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Yakun Wang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
| | - Jixia Zhang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
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36
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Kumar Y, Jaiswal Y, Kumar A. Two-Step One-Pot Synthesis of Unsymmetrical (Hetero)Aryl 1,2-Diketones by Addition-Oxygenation of Potassium Aryltrifluoroborates to (Hetero)Arylacetonitriles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701625] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yogesh Kumar
- Department of Chemistry; Indian Institute of Technology Patna; 801103 Bihta Bihar India
| | - Yogesh Jaiswal
- Department of Chemistry; Indian Institute of Technology Patna; 801103 Bihta Bihar India
| | - Amit Kumar
- Department of Chemistry; Indian Institute of Technology Patna; 801103 Bihta Bihar India
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37
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Gao Q, He S, Wu X, Zhang J, Bai S, Wu Y, Wu A. Selective access to dipyrazolo-fused pyridines via formal [3 + 2 + 1] heteroannulation of methyl ketones with pyrazol-5-amines. Org Chem Front 2018. [DOI: 10.1039/c7qo00941k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A fascinating new form of the Hantzsch reaction with methyl ketones and pyrazol-5-amines for the selective synthesis of dipyrazolo-fused pyridines has been discovered.
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Affiliation(s)
- Qinghe Gao
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
- Key Laboratory of Pesticide & Chemical Biology
| | - Shuang He
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Suping Bai
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Yandong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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38
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Zheng B, Silverman SM, Steinhardt SE, Kolotuchin S, Iyer V, Fan J, Skliar D, McLeod DD, Bultman M, Tripp JC, Murugesan S, La Cruz TE, Sweeney JT, Eastgate MD, Conlon DA. Preparation of the HIV Attachment Inhibitor BMS-663068. Part 6. Friedel–Crafts Acylation/Hydrolysis and Amidation. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bin Zheng
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Steven M. Silverman
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Sarah E. Steinhardt
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Sergei Kolotuchin
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Vidya Iyer
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Junying Fan
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Dimitri Skliar
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Douglas D. McLeod
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Michael Bultman
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Jonathan C. Tripp
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Saravanababu Murugesan
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Thomas E. La Cruz
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Jason T. Sweeney
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - Martin D. Eastgate
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
| | - David A. Conlon
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey, 08903-0191, United States
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39
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Guo S, Dai Z, Hua J, Jiang W, Yang Z, Fang Z, Guo K. Cu-Catalyzed Synthesis of C-3 Dicarbonyl Indoles via Aerobic Oxidative Coupling of Acetophenones with Indoles. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Wenjin Jiang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhao Yang
- College of Engineering; China Pharmaceutical University; 24 Tongjiaxiang Nanjing 210003 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
- State Key Laboratory of Materials-Oriented Chemical Engineering; 30 Puzhu Rd S. Nanjing 211816 China
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40
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Guo S, Zhai J, Fan X. An I 2-mediated cascade reaction of 2'-bromoacetophenones with benzohydrazides/benzamides leading to quinazolino[3,2-b]cinnoline or tryptanthrin derivatives. Org Biomol Chem 2017; 15:1521-1529. [PMID: 28116380 DOI: 10.1039/c6ob02699k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and facile protocol for the synthesis of quinazolinone-fused tetracyclic compounds through an iodine-mediated one-pot cascade reaction of 2'-bromoacetophenones with 2-aminobenzohydrazides or 2-aminobenzamides is reported. With 2-aminobenzohydrazides as the substrates, the reaction gave 5H-quinazolino[3,2-b]cinnoline-7,13-diones in moderate to good yields under metal-catalyst-free conditions. With 2-aminobenzamides as the substrates and CuBr as the catalyst, on the other hand, it afforded tryptanthrin derivatives with good efficiency. Mechanistically, the formation of the tetracyclic systems is initiated by iodination and oxidation of 2'-bromoacetophenones followed by a cascade procedure consisting of cyclocondensation, aromatization and intramolecular cyclization of the in situ formed 2-bromoarylglyoxals with 2-aminobenzohydrazides or 2-aminobenzamides, respectively.
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Affiliation(s)
- Shenghai Guo
- 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 Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jianhui Zhai
- 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 Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Xuesen Fan
- 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 Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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41
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Kumar M, Sharma S, Thakur K, Nayal OS, Bhatt V, Thakur MS, Kumar N, Singh B, Sharma U. Montmorillonite-K10-Catalyzed Microwave-Assisted Direct Amidation of Unactivated Carboxylic Acids with Amines: Maintaining Chiral Integrity of Substrates. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600590] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manoranjan Kumar
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Sushila Sharma
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Krishana Thakur
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
| | - Onkar S. Nayal
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Vinod Bhatt
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Maheshwar S. Thakur
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Neeraj Kumar
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
| | - Bikram Singh
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division; CSIR-Institute of Himalayan Bioresource Technology, Palampur; Himachal Pradesh- 176 061 India
- Academy of Scientific and Innovative Research, AnusandhanBhawan, 2 Rafi Marg; New Delhi- 110001 India
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42
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Wang C, Zhang Z, Liu K, Yan J, Zhang T, Lu G, Meng Q, Chi H, Duan C. Copper-catalyzed synthesis of indolyl diketones via C–H oxidation/diacylation of indoles with arylglyoxal hydrates. Org Biomol Chem 2017; 15:6185-6193. [DOI: 10.1039/c7ob01255a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Copper-catalyzed synthesis of indolyl diketonesviaC–H oxidation/diacylation of indoles with arylglyoxal hydrates is described.
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Affiliation(s)
- Cuiping Wang
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Zhiqiang Zhang
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Kui Liu
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Jingbo Yan
- AmberMolTech LLC
- Beijing 100081
- P. R. China
| | - Tiexin Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Gonghao Lu
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Qingtao Meng
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Haijun Chi
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
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43
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Samanta S, Mondal S, Santra S, Kibriya G, Hajra A. FeCl 3-Catalyzed Cross-Dehydrogenative Coupling between Imidazoheterocycles and Oxoaldehydes. J Org Chem 2016; 81:10088-10093. [PMID: 27696879 DOI: 10.1021/acs.joc.6b02091] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An Fe(III)-catalyzed efficient dicarbonylation of imidazoheterocycles has been developed through cross-dehydrogenative coupling between imidazoheterocycles and oxoaldehydes under ambient air in high yields. The present protocol is also applicable to indolizines. Imidazopyridine produced bisimidazopyridine with arylaldehyde. Experimental results suggest that the reactions proceed through the nonradical pathway.
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Affiliation(s)
- Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University) , Santiniketan 731235, India
| | - Susmita Mondal
- Department of Chemistry, Visva-Bharati (A Central University) , Santiniketan 731235, India
| | - Sougata Santra
- Department of Organic & Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University , 19 Mira Str., Yekaterinburg, 620002, Russian Federation
| | - Golam Kibriya
- Department of Chemistry, Visva-Bharati (A Central University) , Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University) , Santiniketan 731235, India
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44
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Lv Z, Wang B, Hu Z, Zhou Y, Yu W, Chang J. Synthesis of Quinazolines from N,N′-Disubstituted Amidines via I2/KI-Mediated Oxidative C–C Bond Formation. J Org Chem 2016; 81:9924-9930. [DOI: 10.1021/acs.joc.6b02100] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhigang Lv
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Bingnan Wang
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Zhiyuan Hu
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Yiming Zhou
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Wenquan Yu
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Junbiao Chang
- College
of Chemistry and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
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45
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46
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Wu X, Zhang J, Liu S, Gao Q, Wu A. An Efficient Synthesis of Polysubstituted Pyridines
via
CH Oxidation and CS Cleavage of Dimethyl Sulfoxide. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500683] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
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47
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Yan J, He G, Yan F, Zhang J, Zhang G. The dicarbonylation of indoles via Friedel–Crafts reaction with dicarbonyl nitrile generated in situ and retro-cyanohydrination. RSC Adv 2016. [DOI: 10.1039/c6ra04016k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reaction of indole and β-carbonyl nitrile to generate dicarbonyl indoles has been developed. This process involves α-oxonation of the β-carbonyl nitrile, Friedel–Crafts reaction with indoles and retro-cyanohydrination form dicarbonyl indoles.
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Affiliation(s)
- Jianwei Yan
- 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 Engineering
- Henan Normal University
| | - Guangjie He
- Department of Forensic Medicine
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Fulin Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Jixia Zhang
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Guisheng Zhang
- 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 Engineering
- Henan Normal University
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48
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Guo S, Dai Z, Yang Z, Zhu N, Wan L, Li X, Liu C, Fang Z, Guo K. Metal-free oxidative esterification of acetophenones with alcohols: a facile one-pot approach to α-ketoesters. RSC Adv 2016. [DOI: 10.1039/c6ra19485k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel oxidative esterification method for the synthesis of α-ketoesters has been developed, which is a facile one-pot approach to α-ketoesters from acetophenones with alcohols, especially under metal-free conditions with broad substrate scope.
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Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Li Wan
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Xin Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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49
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Wu YD, Geng X, Gao Q, Zhang J, Wu X, Wu AX. Iodine-promoted sequential dual oxidative Csp3–H amination/Csp3–H iodination reactions: efficient synthesis of 1-iodoimidazo[1,5-a]pyridines. Org Chem Front 2016. [DOI: 10.1039/c6qo00313c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine-promoted sequential dual oxidative Csp3–H amination of aryl methyl ketones and Csp3–H iodination of pyridin-2-ylmethanamines have been realized for the first time. This simple and efficient approach constructed 1-iodoimidazo[1,5-a]pyridines in moderate to good yields.
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Affiliation(s)
- Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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50
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Lei S, Chen G, Mai Y, Chen L, Cai H, Tan J, Cao H. Regioselective Copper-Catalyzed Oxidative Cross-Coupling of Imidazo[1,2-a]pyridines with Methyl Ketones: An Efficient Route for Synthesis of 1,2-Diketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500803] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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