1
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Bhuyan M, Sharma S, Dutta NB, Baishya G. tert-Butylhydroperoxide mediated radical cyanoalkylation/cyanoalkenylation of 2-anilino-1,4-naphthoquinones with vinylarenes/arylalkynes and azobis(alkylcarbonitrile)s. Org Biomol Chem 2023; 21:9255-9269. [PMID: 37969100 DOI: 10.1039/d3ob01528a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
A novel sustainable methodology based on one-pot cyanoalkylation/cyanoalkenylation of 2-anilino-1,4-naphthoquinones with vinylarenes/arylalkynes and azobis(alkylcarbonitrile)s involving a three-component radical cascade pathway has been achieved. Here, tert-butylhydroperoxide (TBHP) acts as an efficient oxidant, and it smoothly drives the reaction, producing the three-component products in very good to excellent yields. This cascade reaction eliminates the use of any base, additive, metal and hazardous cyanating agent. Additionally, this protocol exclusively delivers a stereospecific product in the case of arylalkynes. The involvement of radicals is evidenced through various radical trapping experiments.
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Affiliation(s)
- Mayurakhi Bhuyan
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh-201002, India
| | - Suraj Sharma
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh-201002, India
| | | | - Gakul Baishya
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh-201002, India
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2
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Sharma R, Chaudhary S. Regiodivergent Cu-Promoted, AcOH-Switchable Distal Versus Proximal Direct Cyanation of 1-Aryl-1 H-indazoles and 2-Aryl-2 H-indazoles via Aerobic Oxidative C-H Bond Activation. J Org Chem 2022; 87:16188-16203. [PMID: 36417354 DOI: 10.1021/acs.joc.2c01603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A copper-promoted regiodivergent, AcOH-switchable, distal and proximal direct cyanation of N-aryl-(1H/2H)-indazoles via aerobic oxidative C(sp2)-H bond activation has been developed. The inclusion or exclusion of AcOH as an additive is the foremost cause for the positional switch in the C-CN bond formation method that results in (C-2')-cyanated 2-aryl-2H-indazoles 3a-j, (C-2')-cyanated 1-aryl-1H-indazoles 4a-j [distal], or C-3 cyanated 2-aryl-2H-indazoles 5a-i [proximal] products in good to excellent yields and showed various functional group tolerance. The cyanide (CN-) ion surrogate was generated via the unification of dimethylformamide and ammonium iodide (NH4I). The utilization of molecular oxygen (aerobic oxidative strategy) as a clean and safe oxidant is liable for generous value addition. The further pertinence of the developed protocol has been demonstrated by transforming the synthesized cyanated product into numerous other functional groups, which will, undoubtedly, accomplish utilization in the synthetic area of biologically important compounds and medicinal chemistry.
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Affiliation(s)
- Richa Sharma
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India.,Laboratory of Bioactive Heterocycles and Catalysis, Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli (Transit Campus), Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow 226002, India
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3
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Wang Z, Hao J, Lv Y, Qu C, Yue H, Wei W. Additive‐Free Visible‐Light‐Initiated Three‐Component Cyanation and Azidation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Zhiwei Wang
- Qufu Normal University School of Chemistry and Chemical Engineering CHINA
| | - Jindong Hao
- Qufu Normal University School of Chemistry and Chemical Engineering CHINA
| | - Yufen Lv
- Qufu Normal University School of Chemistry and Chemical Engineering CHINA
| | - Chengming Qu
- Qufu Normal University School of Chemistry and Chemical Engineering CHINA
| | - Huilan Yue
- Qufu Normal University School of Chemistry and Chemical Engineering CHINA
| | - Wei Wei
- Qufu Normal University Chemistry Jingxuan west road 57 number 273165 Qufu CHINA
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4
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Chen R, Wang Y, Wang ZY, Ma X, Xu C, Wang KK, Sun A. Cobalt-catalyzed decarboxylative oxyalkylation of styrenes with α-cyanoacid: access to γ‑ketonitriles. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Bhuyan M, Sharma S, Baishya G. Metal-free three-component cyanoalkylation of quinoxalin-2(1H)-ones with vinylarenes and azobis(alkylcarbonitrile)s. Org Biomol Chem 2022; 20:1462-1474. [DOI: 10.1039/d1ob02143e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A K2S2O8-mediated C3 cyanoalkylation of quinoxalin-2(1H)-ones via a three-component radical cascade reaction with vinylarenes and azobis(alkylcarbonitrile)s has been achieved.
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Affiliation(s)
- Mayurakhi Bhuyan
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Suraj Sharma
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Gakul Baishya
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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6
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Gao Y, Fu Z, Wu D, Yin H, Chen F. Organocatalyzed Asymmetric Tandem Intramolecular oxa‐Michael Addition/Electrophilic Thiocyanation: Synthesis of Chiral
α‐
Thiocyanato Flavanones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yong Gao
- School of Chemistry & Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District Beijing 102488 P. R. China
| | - Zhenda Fu
- School of Chemistry & Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District Beijing 102488 P. R. China
| | - Di Wu
- School of Chemistry & Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District Beijing 102488 P. R. China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District Beijing 102488 P. R. China
| | - Fu‐Xue Chen
- School of Chemistry & Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District Beijing 102488 P. R. China
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7
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Lin J, Jia M, Ma S. Pd‐Catalyzed
2,
3‐Allenylation
of Oxindoles with 2,
3‐Allenylic
Carbonates. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jie Lin
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 China
| | - Minqiang Jia
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu Shanghai 200032 China
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8
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9
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Li C, Long P, Fu Z, Wu D, Chen F, Yin H. Thiocyanation/Cyclization of γ‐hydroxy Olefins to Access Thiocyanato‐Containing Oxygen Heterocyclic Compounds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100175] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chengcheng Li
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
| | - Pingliang Long
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
| | - Zhenda Fu
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
| | - Di Wu
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
| | - Fu‐Xue Chen
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
| | - Hongquan Yin
- School of Chemistry and Chemical Engineering Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology Beijing Institute of Technology (Liangxiang Campus) No. 8 Liangxiang East Road Fangshan District, Beijing 102488 P. R. China
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10
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Zhang W, Yang W, Zhao W. Lewis acid-promoted site-selective cyanation of phenols. Org Biomol Chem 2021; 18:4604-4609. [PMID: 32515758 DOI: 10.1039/d0ob00737d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An efficient Lewis acid-promoted site-selective electrophilic cyanation of 3-substituted and 3,4-disubstituted phenols has been developed. The cyanation reactions using MeSCN as the cyanating reagent proceeded efficiently to afford a wide range of 2-hydroxybenzonitriles with high efficiency and excellent regioselectivity. This protocol could provide a practical method for the synthesis and modification of biologically active molecules.
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Affiliation(s)
- Wu Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
| | - Wen Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
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11
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Wu D, Li C, Duan Y, Yin H, Chen FX. One-pot synthesis of 2-chloro-2-thio/selenocyanato ketones from β-keto acids. Org Chem Front 2021. [DOI: 10.1039/d1qo00405k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chlorothiocyanato difunctionalization reaction has been achieved, and a variety of α-chlorothio/selenocyanato difunctional ketones are synthesized through one-pot strategy from β-keto acids.
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Affiliation(s)
- Di Wu
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology (Liangxiang Campus)
- Beijing 102488
- China
| | - Chengcheng Li
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology (Liangxiang Campus)
- Beijing 102488
- China
| | - Yongjie Duan
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology (Liangxiang Campus)
- Beijing 102488
- China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology (Liangxiang Campus)
- Beijing 102488
- China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology (Liangxiang Campus)
- Beijing 102488
- China
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12
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Li J, Shi L, Zhang SP, Wang XY, Zhu X, Hao XQ, Song MP. Rh(III)-Catalyzed C-H Cyanation of 2 H-Indazole with N-Cyano- N-phenyl- p-toluenesulfonamide. J Org Chem 2020; 85:10835-10845. [PMID: 32692175 DOI: 10.1021/acs.joc.0c01386] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A Rh(III)-catalyzed direct cyanation of 2H-indazoles with N-cyano-N-phenyl-p-toluenesulfonamide has been realized via a chelation-assisted strategy. The methodology enables regioselective access to various ortho-cyanated phenylindazoles in good yields with a broad substrate scope and good functional group compatibility. The obtained cyanated indazoles could further be converted into other value-added chemicals. Importantly, the current protocol is featured with several characteristics, including a novel cyanating agent, good regioselectivity, and operational convenience.
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Affiliation(s)
- Jing Li
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Linlin Shi
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Shu-Ping Zhang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xu-Yan Wang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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13
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Affiliation(s)
- Wen-Biao Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, People’s Republic of China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai 200032, People’s Republic of China
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14
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Maity A, Roy A, Das MK, De S, Naskar M, Bisai A. Oxidative cyanation of 2-oxindoles: formal total synthesis of (±)-gliocladin C. Org Biomol Chem 2020; 18:1679-1684. [PMID: 32052001 DOI: 10.1039/c9ob02752a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient oxidative direct cyanations of 3-alkyl/aryl 2-oxindoles using Cyano-1,2-BenziodoXol-3(1H)-one (CBX) (2a) have been reported under 'transition metal-free' conditions to synthesize a wide variety of 3-cyano 3-alkyl/aryl 2-oxindoles sharing an all-carbon quaternary center under additive-free conditions. The application of this process is shown by the formal total synthesis of (±)-gliocladin C (11c) in a few steps.
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Affiliation(s)
- Arindam Maity
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Avishek Roy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Mrinal Kanti Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Subhadip De
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Malay Naskar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
| | - Alakesh Bisai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal - 462 066, Madhya Pradesh, India. and Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia - 741 246, West Bengal, India.
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15
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Chen X, Li Z. Catalyst‐free straightforward synthesis of 3‐cyano‐3‐arylamino‐2‐oxindoles through hydrocyanation with benzoyl cyanide. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiao Chen
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou China
| | - Zheng Li
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou China
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16
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Yavari I, Shaabanzadeh S, Sheikhi S. Electrochemical Synthesis of
β
‐Ketonitriles from Aryl Methyl Ketones. ChemistrySelect 2020. [DOI: 10.1002/slct.201903931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Issa Yavari
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Sina Shaabanzadeh
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Sara Sheikhi
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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17
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Wang J, Sun B, Zhang L, Xu T, Xie Y, Jin C. Transition-metal-free direct C-3 cyanation of quinoxalin-2(1H)-ones with ammonium thiocyanate as the “CN” source. Org Chem Front 2020. [DOI: 10.1039/c9qo01055f] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A practical protocol for TBHP-mediated oxidative C–H cyanation of quinoxalin-2(1H)-ones utilizing ammonium thiocyanate as the cyanide source has been developed under metal free conditions.
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Affiliation(s)
- Jiayang Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Liang Zhang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Tengwei Xu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Yuanyuan Xie
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Can Jin
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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18
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Wu D, Qiu J, Li C, Yuan L, Yin H, Chen FX. Lewis Acid-Catalyzed Asymmetric Selenocyanation of β-Ketoesters with N-Selenocyanatosaccharin. J Org Chem 2019; 85:934-941. [PMID: 31820979 DOI: 10.1021/acs.joc.9b02786] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first electrophilic asymmetric selenocyanation has been achieved in the presence of Ni(OTf)2 and (R,R)-DBFOX/Ph using N-selenocyanatosaccharin as the new selenocyanation reagent. Thus, a series of α-selenocyanato-β-keto esters were synthesized with high yields (up to 99%) and good ee values (up to 92% ee). The readily preparation of the reagent and high enantioselectivity make this methodology much practical for the synthesis of chiral selenocyanates.
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Affiliation(s)
- Di Wu
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
| | - Jiashen Qiu
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
| | - Chengqiu Li
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
| | - Lexia Yuan
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering , Beijing Institute of Technology (Liangxiang Campus) , No. 8 Liangxiang East Road Fangshan District , Beijing 102488 , China
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19
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Rao MK, Reddy KN, Sridhar B, Reddy BS. Ru(II)-catalyzed α-sulfonamidation of cyclic β-ketoesters with sulfonyl azides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Qiu J, Wu D, Yuan L, Long P, Yin H, Chen FX. Organocatalyzed Asymmetric α-Thiocyanation of Oxindoles: Synthesis of Chiral Tertiary 3-Thiocyanatoxindoles. J Org Chem 2019; 84:7917-7926. [DOI: 10.1021/acs.joc.9b00782] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jiashen Qiu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Di Wu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Lexia Yuan
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Pingliang Long
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
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21
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Abstract
The present review gives an overview over non-toxic cyanation agents and cyanide sources used in the synthesis of structurally diverse products containing the nitrile function. Nucleophilic as well as electrophilic agents/systems that transfer the entire CN-group were taken in consideration. Reactions in which a preexisting carbon functionality is transformed into a nitrile function by addition of nitrogen are however not covered here.
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Affiliation(s)
- Alexander M Nauth
- Institute of Organic Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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22
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Matsunami A, Takizawa K, Sugano S, Yano Y, Sato H, Takeuchi R. Synthesis of Chiral Homoallylic Nitriles by Iridium-Catalyzed Allylation of Cyanoacetates. J Org Chem 2018; 83:12239-12246. [DOI: 10.1021/acs.joc.8b01632] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Asuka Matsunami
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Kazuki Takizawa
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Shogo Sugano
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yusuke Yano
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Hiroaki Sato
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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23
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Nosova EV, Lipunova GN, Charushin VN, Chupakhin ON. Fluorine-containing indoles: Synthesis and biological activity. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.05.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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Karmaker PG, Qiu J, Wu D, Zhang S, Yin H, Chen FX. Improved organocatalytic electrophilic α-cyanation of β-keto amides with 1-cyanato-4-nitrobenzene. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Qiu J, Wu D, Karmaker PG, Yin H, Chen FX. Enantioselective Organocatalyzed Direct α-Thiocyanation of Cyclic β-Ketoesters by N-Thiocyanatophthalimide. Org Lett 2018; 20:1600-1603. [DOI: 10.1021/acs.orglett.8b00342] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiashen Qiu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian district, Beijing 100081, China
| | - Di Wu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian district, Beijing 100081, China
| | - Pran Gopal Karmaker
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian district, Beijing 100081, China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian district, Beijing 100081, China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian district, Beijing 100081, China
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26
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Wu D, Qiu J, Karmaker PG, Yin H, Chen FX. N-Thiocyanatosaccharin: A "Sweet" Electrophilic Thiocyanation Reagent and the Synthetic Applications. J Org Chem 2018; 83:1576-1583. [PMID: 29302964 DOI: 10.1021/acs.joc.7b02850] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
N-Thiocyanatosaccharin (R1) was readily prepared from the sweet additive Saccharin in two steps with a 71% overall yield. By applying this new reagent to diverse nucleophiles such as benzothiophenes, indoles, oxindoles, aromatic amines, phenols, β-keto carbonyl compounds, and aromatic ketones, a novel electrophilic thiocyanation reaction was achieved with high yields (up to 99%). The potential recycling of Saccharin, the wide scope of substrates, and the mild reaction conditions made this protocol much more practical.
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Affiliation(s)
- Di Wu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , No. 5 Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Jiashen Qiu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , No. 5 Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Pran Gopal Karmaker
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , No. 5 Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Hongquan Yin
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , No. 5 Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Fu-Xue Chen
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , No. 5 Zhongguancun Street, Haidian District, Beijing 100081, China
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27
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Zhu WM, Bao WH, Ying WW, Chen WT, Huang YL, Ge GP, Chen GP, Wei WT. TEMPO-Promoted C(sp3
)−H Hydroxylation of 2-Oxindoles at Room Temperature. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700660] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wen-Ming Zhu
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Wen-Hui Bao
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Wei-Wei Ying
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Wei-Ting Chen
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Yi-Ling Huang
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Guo-Ping Ge
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Gan-Ping Chen
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
| | - Wen-Ting Wei
- School of Materials Science and Chemical Engineering; Ningbo University; Ningbo 315211 China
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28
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Sun MX, Wang YF, Xu BH, Ma XQ, Zhang SJ. A metal-free direct C (sp3)–H cyanation reaction with cyanobenziodoxolones. Org Biomol Chem 2018; 16:1971-1975. [DOI: 10.1039/c8ob00173a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Metal-free direct C(sp3)–H cyanation reaction: cyanobenziodoxolones as cyanating reagents and oxidants.
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Affiliation(s)
- Ming-Xue Sun
- College of Chemistry and Chemical Engineering
- Henan University
- Henan Engineering Research Center of Resource & Energy Recovery from Waste
- Kaifeng 475004
- P.R. China
| | - Yao-Feng Wang
- CAS Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Bao-Hua Xu
- CAS Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Xin-Qi Ma
- College of Chemistry and Chemical Engineering
- Henan University
- Henan Engineering Research Center of Resource & Energy Recovery from Waste
- Kaifeng 475004
- P.R. China
| | - Suo-Jiang Zhang
- CAS Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
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29
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Donald JR, Taylor RJK, Petersen WF. Low-Temperature, Transition-Metal-Free Cross-Dehydrogenative Coupling Protocol for the Synthesis of 3,3-Disubstituted Oxindoles. J Org Chem 2017; 82:11288-11294. [PMID: 28926705 DOI: 10.1021/acs.joc.7b02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new low-temperature procedure for the synthesis of 3,3-disubstituted 2-oxindoles via cross-dehydrogenative coupling (CDC) is reported. The use of a strong, nonreversible base in these reactions has been found to effect a dramatic drop in reaction temperature (to room temperature) relative to the current state-of-the-art (>100 °C) procedure. When employing iodine as an "oxidant", new evidence suggests that this transformation may occur via a transiently stable iodinated intermediate rather than by direct single-electron oxidation.
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Affiliation(s)
- James R Donald
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Richard J K Taylor
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Wade F Petersen
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
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30
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Karmaker PG, Qiu J, Wu D, Reng M, Yang Z, Yin H, Chen FX. Enantioselective electrophilic cyanation of β-keto amides catalysed by a cinchona organocatalyst. Org Biomol Chem 2017; 15:7753-7757. [DOI: 10.1039/c7ob01782k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An operationally simple protocol for the enantioselective electrophilic α-cyanation of β-keto amides catalyzed by cinchona-derived catalysts has been demonstrated.
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Affiliation(s)
- Pran Gopal Karmaker
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Jiashen Qiu
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Di Wu
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Mengmeng Reng
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Zhuo Yang
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
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