1
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Xia FP, Wu YM, Hu FZ, Zhang XH, Zhang XG. Tandem Sulfonylative Annulation/Halogenation of 1,7-Enynes with Sodium Sulfinate and TBAX for the Assembly of 4-Methylenechromanes. J Org Chem 2024; 89:2351-2363. [PMID: 38301039 DOI: 10.1021/acs.joc.3c02367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
An effective and stereoselective synthesis of halogenated (E)-4-methylenechromanes with a sulfonyl group was developed via the copper-catalyzed sulfonylative annulation/halogenation of 1,7-enynes, in which sodium sulfinates were used as the sulfonyl reagents and tetrabutylammonium halide provided the halogen sources. The formed alkenyl C-X bonds were valuable and can efficiently undergo the subsequent hydrolysis, alkenylation, alkynylation, arylation, alkylthiolation, and alkoxylation to furnish a series of highly functionalized 4-methylenechromanes.
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Affiliation(s)
- Feng-Ping Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yi-Ming Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Feng-Zhi Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiao-Hong Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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2
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Zhang CC, Wu HL, Yu XC, Wang LT, Zhou Y, Sun YB, Wei WT. Photoinduced Copper-Catalyzed Aminoalkylation of Amino-Pendant Olefins. Org Lett 2023; 25:5862-5868. [PMID: 37534703 DOI: 10.1021/acs.orglett.3c02119] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
The combination of photo and copper catalysts has emerged as a novel paradigm in organic catalysis, which provides access to the acceleration of chemical synthesis. Herein, we describe an aminoalkylation of amino-dependent olefins with maleimides through a cooperative photo/copper catalytic system. In this report, the strategy allows the generation of a broad complex of functionalized nitrogenous molecules including oxazolidinones, 2-pyrrolidones, imidazolidinones, thiazolidinones, pyridines, and piperidines in the absence of an external photosensitizer and base. The approach is achieved through a photoinduced Cu(I)/Cu(II)/Cu(III) complex species of nitrogen nucleophiles, intermolecular radical addition, and hydrogen atom transfer (HAT) processes. The plausible mechanism is investigated by a series of control experiments and theoretical tests, including radical scavenging experiments, deuterium labeling experiments, ultraviolet-visible absorption, and cyclic voltammetry (CV) tests.
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Affiliation(s)
- Can-Can Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Hong-Li Wu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Xuan-Chi Yu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Ling-Tao Wang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Yu Zhou
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Yong-Bin Sun
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Wen-Ting Wei
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou, Zhejiang 310024, P. R. China
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3
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Tang B, Liu Y, Lian Y, Liu H. Radical annulation using a radical reagent as a two-carbon unit. Org Biomol Chem 2022; 20:9272-9281. [PMID: 36383141 DOI: 10.1039/d2ob01833k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Radical annulation has emerged as one of the most efficient and straightforward methods for synthesizing cyclic/polycyclic compounds as the core structures can be constructed through a single procedure comprising multiple bond-forming steps. Particularly, radical annulation using a radical reagent as a cyclization partner and two-carbon unit greatly expands the diversity of cyclic skeletons and the functionality of radical reagents. We herein have highlighted the representative processes reported in the past decade for radical annulation using a radical reagent as a two-carbon unit, including [2 + 2 + 2], [3 + 2], [4 + 2], and [5 + 2] modes, with an emphasis on their reaction mechanisms. These studies not only pave the way toward annulation but also provide insight into the exploration of a new reaction mode for radical chemistry.
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Affiliation(s)
- Boxiao Tang
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Yilin Liu
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Yan Lian
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
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4
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Cui J, Tong Y, Li Y. Synthesis of Trifluoromethylated γ-Lactams through Radical Cascades of N-Cyano Alkenes with CF 3SO 2Na. J Org Chem 2022; 87:16090-16098. [PMID: 36370090 DOI: 10.1021/acs.joc.2c01775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
We report herein a facile strategy to synthesize trifluoromethylated γ-lactams through trifluoromethylcarbonylation of N-cyano alkenes using readily available CF3SO2Na as the CF3 radical source. A range of trifluoromethyl-containing γ-lactams was obtained in good yields. This transition-metal-free protocol is demonstrated with mild conditions, broad substrate scope, good functional group tolerance, convenient reagents, and an easy-to-handle operating system.
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Affiliation(s)
- Jianchao Cui
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ye Tong
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yi Li
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
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5
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Sivanantham M, Jennifer G A, Varathan E, Ramasamy M, Senadi GC. Iodo-sulphonylation of 1,6-enynones: a metal-free strategy to synthesize N-substituted succinimides. Org Biomol Chem 2022; 20:7942-7948. [PMID: 36178240 DOI: 10.1039/d2ob01277d] [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 iodine-mediated radical cyclization of 1,6-enynones with sulphonyl hydrazides using tert-butyl hydroperoxide (TBHP) as the oxidant has been developed for the synthesis of iodo-sulphonylated-succinimide derivatives. The notable advantages of the developed method are metal-free conditions, broad functional group tolerance, column chromatography-free purification, high stereoselectivity (E isomer), shorter reaction times, and the cascade construction of three new bonds (C-S, C-I, and C-C). The synthetic application of the iodo-functionality has been extended to the Heck coupling reaction with acrylonitrile and to the Suzuki coupling reaction with benzene boronic acid.
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Affiliation(s)
- Mathiyazhagan Sivanantham
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Abigail Jennifer G
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Elumalai Varathan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Mohankumar Ramasamy
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India. .,Interdisciplinary Institute of Indian System of Medicine, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Gopal Chandru Senadi
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
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6
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Ma R, Yang H, Ye L, Yang Q, Shi Z, Zhao Z, Li X. Stereoselective Synthesis of Chiral Hydrophenanthridines via a One-Pot Stepwise Aza-Michael/Michael/Michael Process. Org Lett 2022; 24:4798-4803. [PMID: 35758631 DOI: 10.1021/acs.orglett.2c01866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A one-pot, two-step aza-Michael/Michael/Michael process was developed to diastereospecifically construct C6a,C10a-cis-hydrophenanthridines in a highly enantioselective manner (83-99% ee). The tricyclic products were provided in 50-99% isolated yields, sequentially promoted by bifunctional squaramide and diamine in a one-pot operation. This doubly annulative protocol indicated that the complicated polycyclic structures could be easily constructed via full employment of the available reaction sites of readily prepared precursors.
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Affiliation(s)
- Ruiying Ma
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Hongzhou Yang
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Qiang Yang
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Zhichuan Shi
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Zhigang Zhao
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Xuefeng Li
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
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7
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Zheng X, Shen Q, Yin C, Li L, Zhong T, Yu C. Photoinduced Three‐Component Difluoroamidosulfonylation/Bicyclization: Regioselectivity Synthesis of Seven‐Membered Dibenzosultams. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiangyun Zheng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Qitao Shen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanliu Yin
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Lianghao Li
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Tianshuo Zhong
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanming Yu
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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8
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Wang SC, Liu PY, Chen YX, Shen ZJ, Hao WJ, Tu SJ, Jiang B. Copper/silver co-mediated three-component bicyclization for accessing indeno[1,2- c]azepine-3,6-diones. Chem Commun (Camb) 2021; 57:7966-7969. [PMID: 34286745 DOI: 10.1039/d1cc02973h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new copper/silver-co-mediated three-component bicyclization of benzene-linked 1,6-enynes with ICF2CO2Et with TMSN3 was reported, and used to produce a wide range of hitherto unreported difluorinated tetrahydroindeno[1,2-c]azepine-3,6-diones with moderate to good yields. The mechanistic pathway consists of radical-induced 1,6-addition-cyclization, oxidative addition, reductive elimination, nitrene insertion and N-O cleavage, resulting in continuous multiple bond-forming events including C-C and C-N bonds to build up a 6/5/7 tricyclic framework.
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Affiliation(s)
- Shi-Chao Wang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Peng-Yu Liu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Yi-Xin Chen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Zheng-Jia Shen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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9
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Cai T, Zhang Z, Li P, Sun T, Chen X, Ni Y, Chen J, Xu H, Xu Y, Wu C, Shen R, Gao Y. Radical Cascade Bicyclization/Aromatization of 1,7‐Enynes with 1,3‐Dicarbonyl Compounds towards 2,3‐Dihydro‐1
H
‐cyclopenta[
a
]naphthalenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tao Cai
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Zhebing Zhang
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Peiqin Li
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Tao Sun
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Xinyu Chen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Yuqi Ni
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Jianhui Chen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Huiting Xu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Yanfei Xu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Chunlei Wu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Runpu Shen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Yuzhen Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 People's Republic of China
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10
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Dong M, Wang D, Tong X. PhI(OAc) 2-Mediated Dihalogenative Cyclization of 1,6-Enyne with Lithium Halide. Org Lett 2021; 23:3588-3592. [PMID: 33899488 DOI: 10.1021/acs.orglett.1c00987] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dihalogenative cyclization of 1,6-enyne with the assistance of PhI(OAc)2 and lithium halide is presented. A plausible radical mechanism is proposed, which consists of addition of halogen radical to alkene, 5-exo-dig radical cyclization of enyne and halogenation via radical coupling. The alkenyl- and alkyl-halide groups in the resulted pyrrolidine products have been demonstrated to be facile handles for further transformations.
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Affiliation(s)
- Ming Dong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Danfeng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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11
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Wei WT, Li Q, Zhang MZ, He WM. N-Radical enabled cyclization of 1,n-enynes. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63702-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Gu Y, Dai L, Zhang J, Lu X, Liu X, Wang C, Zhang J, Rong L. Silver-Catalyzed Radical Cascade Sulfonation/Cycloaddition for the Construction of Multifunctional Succimides Containing Separable Z/ E-Isomers. J Org Chem 2021; 86:2173-2183. [PMID: 33475351 DOI: 10.1021/acs.joc.0c02275] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A silver-catalyzed cascade cycloaddition of aza-1,6-enynes, affording multifunctional succimide frameworks initiated by the arylsulfonyl radical addition, has been developed. This process shows mild reaction conditions, excellent structural selectivity, and broad functional group tolerance. In addition, the Z/E-isomers can be easily separated, which provides an efficient method for obtaining pure Z/E-configuration products.
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Affiliation(s)
- Yan Gu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Lei Dai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Jinghang Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xinchi Lu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xiaoqin Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Jinpeng Zhang
- College of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu 221006, People's Republic of China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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13
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Pimparkar S, Koodan A, Maiti S, Ahmed NS, Mostafa MMM, Maiti D. C–CN bond formation: an overview of diverse strategies. Chem Commun (Camb) 2021; 57:2210-2232. [DOI: 10.1039/d0cc07783f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Aim for cyanation: a comprehensive overview on various approaches on C–CN bond formation in arenes/heteroarenes by activated halides/pseudohalide, directed, non-directed, electro-catalyzed, photoredox-catalyzed, and radical approaches.
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Affiliation(s)
| | | | | | - Nesreen S. Ahmed
- Department of Therapeutic Chemistry
- National Research Centre
- Cairo-12622
- Egypt
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14
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Maurya JP, Ramasastry SSV. Divergent Michael/Aldol Cascades Under Semi-Aqueous Conditions: Synthesis of Cyclopenta- and Cycloheptannulated (Hetero)arenes. J Org Chem 2021; 86:525-537. [PMID: 33395742 DOI: 10.1021/acs.joc.0c02195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of 3-acetoxyindanones and (hetero)arene-fused dihydrotropones was achieved via divergent annulation cascades. Under mild aqueous and basic conditions, α-substituted enone-aldehydes and 1,3-carbonyls undergo a Michael/aldol/hemiketalization/retro-aldol cascade for the formation of 3-acetoxyindanones possessing two contiguous stereogenic centers, one of which is an all-carbon quaternary center. On the other hand, the same enone-aldehydes generate new classes of fused-dihydrotropones upon reaction with 2,4-dioxobutanoates under merely the same reaction conditions via a Michael/aldol/lactonization/decarboxylation cascade.
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Affiliation(s)
- Jay Prakash Maurya
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - S S V Ramasastry
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
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15
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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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16
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Zhou Y, Zhao P, Yu XX, Geng X, Wang C, Huang C, Yang H, Zhao ZY, Wu AX. Radical Tandem Bicyclization Triggered by the α-Position of α,β-Unsaturated Ketones Bearing Nonterminal 1,6-Enynes: Synthesis of the 5 H-Benzo[ a]fluoren-5-one Skeleton. Org Lett 2020; 22:8359-8364. [PMID: 33040530 DOI: 10.1021/acs.orglett.0c02990] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for the synthesis of 5H-benzo[a]fluoren-5-one from inactive nonterminal 1,6-alkynes through a free radical tandem bicyclization process has been established. This process achieved a continuous cyclization triggered rarely by the α-position of α,β-unsaturated ketones. The reaction constructed three C-C bonds in one step with the readily accessible substrates and excellent substrate compatibility.
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Affiliation(s)
- You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Hai Yang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Zhi-Yong Zhao
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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17
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Liu HY, Lu Y, Li Y, Li JH. Photocatalytic Decarboxylative [2 + 2 + m] Cyclization of 1,7-Enynes Mediated by Tricyclohexylphosphine and Potassium Iodide. Org Lett 2020; 22:8819-8823. [DOI: 10.1021/acs.orglett.0c03182] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hui-Yuan Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Yuan Lu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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18
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Wang MY, Zhu XQ, Zhang XL, Guo RL, Jia Q, Wang YQ. Synthesis of trifluoromethylthioesters from aldehydes via a visible light-promoted radical process. Org Biomol Chem 2020; 18:5918-5926. [PMID: 32691819 DOI: 10.1039/d0ob01160f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report herein an efficient, economical, and scalable trifluoromethylthiolation of aldehydes to generate trifluoromethylthioesters via a visible light-promoted radical process. The transformation features cheap reagents, simple operation, a broad substrate scope, and especially no metal involved in the reaction. Trifluoromethylthiolations of several complex aldehyde-containing bioactive compounds have been realized; thus the approach has the potential to be an important tool for the late-stage functionalization of advanced synthetic intermediates and bioactive molecules, and should have many applications in medicinal chemistry.
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Affiliation(s)
- Meng-Yue Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
| | - Xue-Qing Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
| | - Xing-Long Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
| | - Rui-Li Guo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
| | - Qiong Jia
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, People's Republic of China.
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19
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Tian T, Wang X, Lv L, Li Z. Iron-Catalyzed [2+2+2] Annulation of Aliphatic Bridged 1,n
-Enynes with Aldehydes for the Synthesis of Fused Pyrans. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000653] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Tian Tian
- Department of Chemistry; Renmin University of China; 100872 Beijing P.R. China
| | - Xin Wang
- Department of Chemistry; Renmin University of China; 100872 Beijing P.R. China
| | - Leiyang Lv
- Department of Chemistry; Renmin University of China; 100872 Beijing P.R. China
| | - Zhiping Li
- Department of Chemistry; Renmin University of China; 100872 Beijing P.R. China
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20
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Zou L, Wang L, Sun L, Xie X, Li P. Photo-driven haloazidation cyclization of 1,5-enynes having cyano groups with TMSN3 and NIS/NCS/NBS under metal-free conditions. Chem Commun (Camb) 2020; 56:7933-7936. [DOI: 10.1039/d0cc02471f] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light-driven three-component haloazidation cyclization of 1,5-enynes having cyano groups with TMSN3 and N-iodo(bromo/chloro)succinimide (NIS/NCS/NBS) under metal-free conditions was developed.
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Affiliation(s)
- Long Zou
- Advanced Research Institute and Department of Chemistry
- Taizhou University
- Taizhou
- Zhejiang
- P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry
- Taizhou University
- Taizhou
- Zhejiang
- P. R. China
| | - Li Sun
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Xiaofei Xie
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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21
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Li Y, Pan GA, Luo MJ, Li JH. Radical-mediated oxidative annulations of 1,n-enynes involving C–H functionalization. Chem Commun (Camb) 2020; 56:6907-6924. [DOI: 10.1039/d0cc02335c] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent progress in oxidative annulations of 1,n-enynes involving C–H functionalization is summarized.
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Affiliation(s)
- Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Gao-Ang Pan
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Mu-Jia Luo
- 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
| | - 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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22
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Guo RL, Zhu XQ, Zhang XL, Wang YQ. Synthesis of difluoromethylselenoesters from aldehydes via a radical process. Chem Commun (Camb) 2020; 56:8976-8979. [DOI: 10.1039/d0cc02912b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Difluoromethylselenoester compounds are reported for the first time. They can be efficiently synthesized from aldehydes and BnSeCF2H under mild conditions.
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Affiliation(s)
- Rui-Li Guo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science
- Northwest University
- Xi’an 710069
- People's Republic of China
| | - Xue-Qing Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science
- Northwest University
- Xi’an 710069
- People's Republic of China
| | - Xing-Long Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science
- Northwest University
- Xi’an 710069
- People's Republic of China
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science
- Northwest University
- Xi’an 710069
- People's Republic of China
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23
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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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24
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Kang QQ, Liu Y, Huang XJ, Li Q, Wei WT. Selective Cyanoalkylation and [2+2+2] Annulation of 1,6-Enynes with Azobis(alkylcarbonitriles) under Mild Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901483] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Qing-Qing Kang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Yi Liu
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Xun-Jie Huang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials; School of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng P. R. China
| | - Wen-Ting Wei
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
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25
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Zhang Y, Chen C, Zhao J, Liu G. Rhodium‐Catalyzed Cascade Radical Cyclization of 1,6‐Enynes with Br−CX
3
: Access to Bromine‐Containing Trihalomethylated Pyrrolidines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900644] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yingying Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry College of ChemistryTianjin Normal University Tianjin 300387 P. R. China
| | - Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry College of ChemistryTianjin Normal University Tianjin 300387 P. R. China
| | - Jinghui Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry College of ChemistryTianjin Normal University Tianjin 300387 P. R. China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry College of ChemistryTianjin Normal University Tianjin 300387 P. R. China
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26
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Xu CH, Li Y, Li JH, Xiang JN, Deng W. Recent advances in radical-mediated [2+2+m] annulation of 1,n-enynes. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9615-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Qin J, Yu J, Li J, An D. Sulfur Incorporation Using Disulfanes as the Sulfur Atom Source Enabled Metal‐Free Heteroannulation of 1,7‐Enynes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900621] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jing‐Hao Qin
- State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 People's Republic of China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Jiang‐Xi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 People's Republic of China
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials, University of Hunan Province Hengyang Normal University Hengyang 421008 People's Republic of China
- 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
- State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 People's Republic of China
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials, University of Hunan Province Hengyang Normal University Hengyang 421008 People's Republic of China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 People's Republic of China
| | - De‐Lie An
- State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 People's Republic of China
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28
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Jiao MJ, Liu D, Hu XQ, Xu PF. Photocatalytic decarboxylative [2 + 2 + 1] annulation of 1,6-enynes with N-hydroxyphthalimide esters for the synthesis of indene-containing polycyclic compounds. Org Chem Front 2019. [DOI: 10.1039/c9qo01166h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient photoredox-mediated [2 + 2 + 1] annulation of 1,6-enynes with N-hydroxyphthalimide esters was reported for the synthesis of spiro and non-spiro indene-containing polycyclic frameworks.
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Affiliation(s)
- Meng-Jie Jiao
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Dan Liu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Xiu-Qin Hu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
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29
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Liu B, Cheng J, Li Y, Li JH. Oxidative tandem annulation of 1-(2-ethynylaryl)prop-2-en-1-ones catalyzed by cooperative iodine and TBHP. Chem Commun (Camb) 2019; 55:667-670. [DOI: 10.1039/c8cc09271k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-free I2-catalyzed tandem annulation of 1,6-enynes to access 1H-cyclopropa-[b]naphthalene-2,7-diones using TBHP is presented.
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Affiliation(s)
- Bang Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- China
| | - Yang Li
- 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
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30
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Yu JX, Niu S, Hu M, Xiang JN, Li JH. Metal-free oxidative [2+2+1] heteroannulation of 1,7-enynes with thiocyanates toward thieno[3,4-c]quinolin-4(5H)-ones. Chem Commun (Camb) 2019; 55:6727-6730. [PMID: 31119230 DOI: 10.1039/c9cc02242b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A new metal-free oxidative [2+2+1] heteroannulation of 1,7-enynes with thiocyanates for producing thieno[3,4-c]quinolin-4(5H)-ones is presented. This reaction employs benzoylperoxide (BPO) as the oxidant and sodium thiocyanate as the sulfur source to enable the formation of three chemical bonds, two C-S bonds and one C-C bond, in a single reaction, and represents a new, practical access to S-heterocycles with the avoidance of the use of metal catalysts and excess bases.
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Affiliation(s)
- Jiang-Xi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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31
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Qin XY, He L, Li J, Hao WJ, Tu SJ, Jiang B. Regioselective synthesis of polycyclic sulfones via radical-induced three-component bicyclization cascades. Chem Commun (Camb) 2019; 55:3227-3230. [DOI: 10.1039/c9cc00324j] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
New radical-triggered three-component bicyclization cascades of 2-alkynylaryldiazonium tetrafluoroborates with a sulfur dioxide surrogate DABCO·(SO2)2 and internal alkynes have been reported for the first time, leading to 49 examples of polycyclic sulfones with moderate to good yields.
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Affiliation(s)
- Xiao-Yan Qin
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Long He
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Jing Li
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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32
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Yu J, Sheng HX, Wang SW, Xu ZH, Tang S, Chen SL. Copper-catalyzed radical cascades of para-quinone methides with AIBN and H2O via α-cyanoalkylation by C–C bond cleavage: new access to benzofuran-2(3H)-ones. Chem Commun (Camb) 2019; 55:4578-4581. [DOI: 10.1039/c9cc00294d] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An elusive and efficient entry to cyano-containing benzofuran-2(3H)-ones.
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Affiliation(s)
- Jian Yu
- Hunan Engineering Laboratory of Analysis and Drugs Development of Ethenomedicine in Wuling Mountain
- Jishou University
- Jishou 416000
- China
| | - Hui-Xiang Sheng
- Hunan Engineering Laboratory of Analysis and Drugs Development of Ethenomedicine in Wuling Mountain
- Jishou University
- Jishou 416000
- China
| | - Shuo-Wen Wang
- Hunan Engineering Laboratory of Analysis and Drugs Development of Ethenomedicine in Wuling Mountain
- Jishou University
- Jishou 416000
- China
| | - Zhen-Hua Xu
- Hunan Engineering Laboratory of Analysis and Drugs Development of Ethenomedicine in Wuling Mountain
- Jishou University
- Jishou 416000
- China
| | - Shi Tang
- Hunan Engineering Laboratory of Analysis and Drugs Development of Ethenomedicine in Wuling Mountain
- Jishou University
- Jishou 416000
- China
| | - Shi-Lu Chen
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
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33
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Xia XF, He W, Zhang GW, Wang D. Iron-catalyzed reductive cyclization reaction of 1,6-enynes for the synthesis of 3-acylbenzofurans and thiophenes. Org Chem Front 2019. [DOI: 10.1039/c8qo01190g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of 3-acylbenzofurans and thiophenes via iron(ii)-catalyzed reductive cyclization of 1,6-enynes has been developed.
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Affiliation(s)
- Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi
| | - Wei He
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi
| | - Guo-Wei Zhang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi
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34
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Ouyang XH, Tan FL, Song RJ, Deng W, Li JH. Palladium-Catalyzed Oxidative [2 + 2 + 1] Annulation of 1,7-Diynes with H2O: Entry to Furo[3,4-c]quinolin-4(5H)-ones. Org Lett 2018; 20:6765-6768. [DOI: 10.1021/acs.orglett.8b02883] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Fang-Lin Tan
- 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
| | - Wei Deng
- 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 Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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35
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Huang MH, Hao WJ, Jiang B. Recent Advances in Radical-Enabled Bicyclization and Annulation/1,n
-Bifunctionalization Reactions. Chem Asian J 2018; 13:2958-2977. [DOI: 10.1002/asia.201801119] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Min-Hua Huang
- School of Chemistry & Materials Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 P. R. China
- Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 210009, Jiangsu P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 P. R. China
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36
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Li Y, Chang Y, Li Y, Cao C, Yang J, Wang B, Liang D. Iron-Catalyzed exo
-Selective Synthesis of Cyanoalkyl Indolines via Cyanoisopropylarylation of Unactivated Alkenes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800296] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yanni Li
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Yu Chang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Yufen Li
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Cheng Cao
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Jinshuang Yang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Baoling Wang
- Yunnan Engineering Technology Research Center for Plastic Films; Kunming 650214 People's Republic of China
| | - Deqiang Liang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
- Yunnan Engineering Technology Research Center for Plastic Films; Kunming 650214 People's Republic of China
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37
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Zhu XT, Zhang TS, Zhao Q, Cai PJ, Hao WJ, Tu SJ, Jiang B. Sulfinate-Salt-Mediated Radical Relay Cyclization of Cyclic Ethers with 2-Alkynylbenzonitriles toward 3-Alkylated 1-Indenones. Chem Asian J 2018. [DOI: 10.1002/asia.201800211] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao-Tong Zhu
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
- Department of Chemistry; Xuzhou Medical University; Xuzhou 221004 P. R. China
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Tian-Shu Zhang
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
| | - Qi Zhao
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Pei-Jun Cai
- School of Chemical Engineering & Technology; China University of Mining and Technology; Xuzhou 221116 P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 P. R. China
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38
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Guo SH, Wang MY, Pan GF, Zhu XQ, Gao YR, Wang YQ. Synthesis of Monofluoromethylthioesters from Aldehydes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800136] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shi-Huan Guo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
| | - Meng-Yue Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
| | - Gao-Fei Pan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
| | - Xue-Qing Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
| | - Ya-Ru Gao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 People's Republic of China
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39
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Zhang C, Pi J, Chen S, Liu P, Sun P. Construction of a 4H-pyrido[4,3,2-gh]phenanthridin-5(6H)-one skeleton via a catalyst-free radical cascade addition/cyclization using azo compounds as radical sources. Org Chem Front 2018. [DOI: 10.1039/c7qo00926g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new radical addition/cyano insertion/homolytic aromatic substitution cascade reaction initiated by the thermal homolysis of azo compounds under catalyst-free conditions produced polycyclic phenanthridine derivatives.
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Affiliation(s)
- Chen Zhang
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Junxia Pi
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Shu Chen
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Ping Liu
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Peipei Sun
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
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40
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Xia X, Yu J, Wang D. Copper/Iron‐Cocatalyzed Cascade Perfluoroalkylation/Cyclization of 1,6‐Enynes with Iodoperfluoroalkanes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701258] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao‐Feng Xia
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Jipan Yu
- Laboratory of Nuclear Energy Chemistry Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi Jiangsu 214122 People's Republic of China
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41
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Li L, Chen H, Mei M, Zhou L. Visible-light promoted γ-cyanoalkyl radical generation: three-component cyanopropylation/etherification of unactivated alkenes. Chem Commun (Camb) 2017; 53:11544-11547. [DOI: 10.1039/c7cc07347j] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A photoredox approach to generate distal cyano-substituted alkyl radicals through C–C bond cleavage of cyclobutanone oximes was developed.
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Affiliation(s)
- Linyong Li
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Haoguo Chen
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Mingjing Mei
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Lei Zhou
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
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42
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Xuan J, Studer A. Radical cascade cyclization of 1,n-enynes and diynes for the synthesis of carbocycles and heterocycles. Chem Soc Rev 2017; 46:4329-4346. [DOI: 10.1039/c6cs00912c] [Citation(s) in RCA: 261] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review highlights recent advances in radical cascade cyclization of 1,n-enynes and diynes for the construction of carbo- and heterocycles.
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Affiliation(s)
- Jun Xuan
- Department of Chemistry
- Anhui University
- Hefei
- People's Republic of China
| | - Armido Studer
- Institute of Organic Chemistry
- Westfälische Wilhems-University
- 48149 Münster
- Germany
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43
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Lv L, Lu S, Chen Y, Li Z. Diastereoselective building up polycyclic tetrahydrofurans via tandem annulation of 1,n-enynes with aliphatic acids. Org Chem Front 2017. [DOI: 10.1039/c7qo00527j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A silver-catalyzed tandem annulation of aniline-linked 1,7-enynes with aliphatic acids has been reported. These synergistic tandem annulations allowed for the straightforward and efficient synthesis of various highly diastereoselective polycyclic tetrahydrofurans.
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Affiliation(s)
- Leiyang Lv
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
- The State Key Laboratory of Applied Organic Chemistry
| | - Shenglin Lu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Yuanjin Chen
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Zhiping Li
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
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44
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Liu Y, Song RJ, Li JH. Palladium-catalyzed dearomatizative [2 + 2 + 1] carboannulation of 1,7-enynes with aryl diazonium salts and H2O: facile synthesis of spirocyclohexadienone-fused cyclopenta[c]quinolin-4(5H)-ones. Chem Commun (Camb) 2017; 53:8600-8603. [DOI: 10.1039/c7cc02830j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The first 1,7-enyne dearomatizative [2 + 2 + 1] carboannulation using aryl diazonium salts as the one-carbon units is described.
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Affiliation(s)
- Yu Liu
- 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
| | - 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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Zhu XT, Zhao Q, Liu F, Wang AF, Cai PJ, Hao WJ, Tu SJ, Jiang B. Silver-mediated radical 5-exo-dig cyclization of 2-alkynylbenzonitriles: synthesis of phosphinylated 1-indenones. Chem Commun (Camb) 2017; 53:6828-6831. [DOI: 10.1039/c7cc01666b] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new silver-mediated 5-exo-dig cyclization of 2-alkynylbenzonitriles with disubstituted phosphine oxide and H2O has been developed.
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Affiliation(s)
- Xiao-Tong Zhu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
- School of Chemical Engineering & Technology
| | - Qi Zhao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Feng Liu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ai-Fang Wang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Pei-Jun Cai
- School of Chemical Engineering & Technology
- China University of Mining and Technology
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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