1
|
Capurro P, Ricciardiello V, Lova P, Lambruschini C, Protti S, Basso A. Visible-Light-Driven Solventylation Strategy for Olefin Functionalization. ACS OMEGA 2022; 7:48564-48571. [PMID: 36591128 PMCID: PMC9798500 DOI: 10.1021/acsomega.2c07172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Amphiphilic aryl radicals generated upon visible light irradiation of arylazo sulfones have been exploited in the development of a solventylation strategy via hydrogen atom transfer (HAT). The present protocol succeeded in the versatile functionalization of various olefins with carbon-centered radicals deriving from acetone, acetonitrile, chloroform, methylene chloride, nitromethane, methyl acetate, and methyl formate under metal- and photocatalyst-free conditions. The direct addition of the aryl radicals onto the olefin substrates was suppressed under high dilution conditions.
Collapse
Affiliation(s)
- Pietro Capurro
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Valentina Ricciardiello
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Paola Lova
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Chiara Lambruschini
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Stefano Protti
- PhotoGreenLab,
Dipartimento di Chimica, Università
di Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Andrea Basso
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| |
Collapse
|
2
|
Yang X, Xia Y, Tong J, Ouyang L, Lai Y, Luo R, Liao J. Photoinduced radical cascade cyclization of acetylenic acid esters with oxime esters to access cyanalkylated coumarins. Org Biomol Chem 2022; 20:5239-5244. [PMID: 35723258 DOI: 10.1039/d2ob00612j] [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
A photoinduced radical cascade cyclization of acetylenic acid esters with oxime esters is described, providing cyanalkylated coumarins in superior yields under mild conditions. Radical capture and luminescence quenching experiments showed that this transformation was accomplished via a radical addition/5-exo spirocyclization/1,2-ester migration process.
Collapse
Affiliation(s)
- Xiao Yang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China.
| | - Yanping Xia
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China.
| | - Jinghui Tong
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China.
| | - Lu Ouyang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China.
| | - Yinlong Lai
- College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, China
| | - Renshi Luo
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China. .,College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, China
| | - Jianhua Liao
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China. .,College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, China
| |
Collapse
|
3
|
Li JZ, Mei L, Yu XC, Wang LT, Cai XE, Li T, Wei WT. C-centered radical-initiated cyclization by directed C(sp 3)–H oxidative functionalization. Org Chem Front 2022. [DOI: 10.1039/d2qo01128j] [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
C(sp3)–H functionalization is attracting constant attention. This review emphasizes C-centered radicals initiated cyclization strategies by directed C(sp3)–H oxidative functionalization since 2012.
Collapse
Affiliation(s)
- Jiao-Zhe Li
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Lan Mei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xuan-Chi Yu
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ling-Tao Wang
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xue-Er Cai
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan, 473061, China
| | - Wen-Ting Wei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| |
Collapse
|
4
|
Zhou Q, Xiong FT, Chen P, Xiong BQ, Tang KW, Liu Y. The visible-light-induced acylation/cyclization of alkynoates with acyl oximes for the construction of 3-acylcoumarins. Org Biomol Chem 2021; 19:9012-9020. [PMID: 34610069 DOI: 10.1039/d1ob01568k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A nitrogen-centered radical-mediated carbon-carbon bond cleavage strategy is described to synthesize functionalized 3-acylcoumarins. The strategy is enabled by the visible-light-induced acylation/cyclization of alkynoates with various acyl oxime compounds in acetonitrile. The difunctionalization of carbon-carbon triple bonds precedes the generation of iminyl radicals, which is followed by the formation of acyl radicals. The acyl radicals then attack the carbon-carbon triple bonds, followed by 5-exo-trig cyclization and 1,2-ester migration. This strategy has wide substrate adaptability and good substituent tolerance.
Collapse
Affiliation(s)
- Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Fang-Ting Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| |
Collapse
|
5
|
Li JZ, Zhang WK, Ge GP, Zheng H, Wei WT. Recent progress in the radical α-C(sp 3)-H functionalization of ketones. Org Biomol Chem 2021; 19:7333-7347. [PMID: 34612358 DOI: 10.1039/d1ob01408k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The direct use structurally simple ketones as α-ketone radical sources for α-C(sp3)-H functionalization is a sustainable and powerful approach for constructing complex and multifunctional chemical scaffolds with diverse applications. The reactions of α-ketone radicals with alkenes, alkynes, enynes, imides, and imidazo[1,2-a]pyridines have broadened the structural diversity and complexity of ketones. Through chosen illustrative examples, we outline the recent progress in the development of methods that enable the radical α-C(sp3)-H functionalization of ketones, with an emphasis on radical initiation systems and possible mechanisms of the transformations. The application of these strategies is illustrated by the synthesis of several biologically active molecules and drug molecules. Further subdivision is based on substrate type and reaction type.
Collapse
Affiliation(s)
- Jiao-Zhe Li
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | | | | | | | | |
Collapse
|
6
|
Zhang M, Shen L, Dong S, Li B, Meng F, Si W, Yang W. DTBP‐Mediated Cascade Spirocyclization and Dearomatization of Biaryl Ynones: Facile Access to Spiro[5.5]trienones through C(sp
3
)−H Bond Functionalization. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100656] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ming‐Ming Zhang
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Liu‐Yu Shen
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Sa Dong
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Bing Li
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Fei Meng
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Wei‐Jie Si
- College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 P. R. China
| | - Wen‐Chao Yang
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University Yangzhou 225009 P. R. China
| |
Collapse
|
7
|
Yao H, Zhong X, Wang B, Lin S, Liu L, Yan Z. Manganese-catalyzed dehydrogenative Csp 3-Csp 2 coupling of imidazo[1,2- a]pyridines with methyl ketones. Org Biomol Chem 2021; 19:3479-3483. [PMID: 33899882 DOI: 10.1039/d1ob00169h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A Mn(ii)-catalyzed efficient C-H alkylation of imidazoheterocycles with methyl ketones has been developed via dehydrogenative C(sp3)-C(sp2) coupling which can serve as a novel approach toward hydrocarboxylated imidazolopyridines. The merit of this strategy is illustrated by excellent functional group tolerance and the use of cheap and readily available starting materials.
Collapse
Affiliation(s)
- Hua Yao
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Xiaoyang Zhong
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Bingqing Wang
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Sen Lin
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Lichi Liu
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Zhaohua Yan
- College of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| |
Collapse
|
8
|
Hu YZ, Ye ZP, Xia PJ, Song D, Li XJ, Liu ZL, Liu F, Chen K, Xiang HY, Yang H. Visible-Light-Driven, Photocatalyst-Free Cascade to Access 3-Cyanoalkyl Coumarins from ortho-Hydroxycinnamic Esters. J Org Chem 2021; 86:4245-4253. [PMID: 33606932 DOI: 10.1021/acs.joc.1c00024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A visible-light-driven, photocatalyst-free route starting from easily accessed ortho-hydroxycinnamic esters and O-perfluoropyridin-4-yl oximes has been successfully developed to rapidly assemble a wide range of 3-cyanoalkyl coumarins. This process does not require addition of external photocatalysts, exhibiting beneficial features including mild reaction conditions, synthetic simplicity, and excellent substrate compatibility. Extensive mechanistic investigations revealed that the in situ generated phenolate anions served as photosensitizers to drive this photoinduced transformation.
Collapse
Affiliation(s)
- Yuan-Zhuo Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Peng-Ju Xia
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Dan Song
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xu-Jie Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Lin Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| |
Collapse
|
9
|
Zhou X, Peng Z, Wang PG, Liu Q, Jia T. Atom Transfer Radical Addition to Styrenes with Thiosulfonates Enabled by Synergetic Copper/Photoredox Catalysis. Org Lett 2021; 23:1054-1059. [PMID: 33428413 DOI: 10.1021/acs.orglett.0c04254] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A synergetic copper/photoredox catalyzed ATRA of styrenes and thiosulfonates is developed. Besides aryl ethylenes, the challenging α-substituted styrenes were employed to construct the benzylic quaternary carbon centers. Owing to the mild conditions as well as the high level of substrate compability, this ATRA could be applied to derivatize bioactive natural products in late stage, and to install fluorophores across alkenes. The mechanistic studies reveal sulfonyl radicals as the key intermediate in the transformation.
Collapse
Affiliation(s)
- Xin Zhou
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shanxi 710069, P. R. China.,Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Shenzhen, Guangdong 518055, P. R. China
| | - Zhiyuan Peng
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Shenzhen, Guangdong 518055, P. R. China
| | - Peng George Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Qingchao Liu
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shanxi 710069, P. R. China
| | - Tiezheng Jia
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Shenzhen, Guangdong 518055, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071, Tianjin, China
| |
Collapse
|
10
|
Ahmad MS, Ahmad A. Cu-catalyzed cyanomethylation of imines and α,β-alkenes with acetonitrile and its derivatives. RSC Adv 2021; 11:5427-5431. [PMID: 35423113 PMCID: PMC8694676 DOI: 10.1039/d0ra10693c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/19/2021] [Indexed: 12/29/2022] Open
Abstract
We describe copper-catalyzed cyanomethylation of imines and α,β-alkenes with a methylnitrile source and provide an efficient route to synthesize arylacrylonitriles and β,γ-unsaturated nitriles. This method tolerates aliphatic and aromatic alkenes substituted with a variety of functional groups such as F, Cl, Br, Me, OMe, tert-Bu, NO2, NH2 and CO2H with good to excellent yields (69-98%). These systems consist of inexpensive, simple copper catalyst and acetonitrile with its derivatives (α-bromo/α-iodo-acetonitrile) and are highly applicable in the industrial production of acrylonitriles.
Collapse
Affiliation(s)
| | - Atique Ahmad
- Department of Physical Sciences, Air University, Islamabad Campus Pakistan
| |
Collapse
|
11
|
Chen P, Chen Z, Xiong BQ, Liang Y, Tang KW, Xie J, Liu Y. Visible-light-mediated cascade cyanoalkylsulfonylation/cyclization of alkynoates leading to coumarins via SO2 insertion. Org Biomol Chem 2021; 19:3181-3190. [DOI: 10.1039/d1ob00142f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A visible-light-mediated cascade cyanoalkylsulfonylation/cyclization of alkynoates with cycloketone oxime compounds for the preparation of 3-cyanoalkylsulfonylcoumarins via SO2 insertion is reported.
Collapse
Affiliation(s)
- Pu Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Yun Liang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- Hunan Normal University
- Changsha
- China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
| |
Collapse
|
12
|
Cai T, Shen F, Ni Y, Xu H, Shen R, Gao Y. Cascade Radical Annulation of 2-Alkynylthio(seleno)anisoles with Acetone or Acetonitrile: Synthesis of 3-Acetomethyl- or Cyanomethyl-Substituted Benzothio(seleno)phenes. J Org Chem 2021; 86:1002-1011. [PMID: 33284023 DOI: 10.1021/acs.joc.0c02444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient method for the direct preparation of 3-aceto(cyano)methyl-substituted benzothio(seleno)phenes has been achieved through C(sp3)-H bond activation of easily available acetone or acetonitrile and cascade radical cyclization reaction. In this cascade radical cyclization reaction, C(sp2)-C(sp3) and C(sp2)-S bonds, as well as benzenethio(seleno)phene skeletons, can be built along with the cleavage of the C(sp3)-S bond, demonstrating the high step-economics and efficiency of this approach.
Collapse
Affiliation(s)
- Tao Cai
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Fangqi Shen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yuqi Ni
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Huiting Xu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Runpu Shen
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, 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, China
| |
Collapse
|
13
|
Eşsiz S. A computational study for the reaction mechanism of metal-free cyanomethylation of aryl alkynoates with acetonitrile. RSC Adv 2021; 11:18246-18251. [PMID: 35480900 PMCID: PMC9033414 DOI: 10.1039/d1ra01649k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/12/2021] [Indexed: 12/04/2022] Open
Abstract
A computational study of metal-free cyanomethylation and cyclization of aryl alkynoates with acetonitrile is carried out employing density functional theory and high-level coupled-cluster methods, such as coupled-cluster singles and doubles with perturbative triples [CCSD(T)]. Our results indicate that the reaction of aryl alkynoates with acetonitrile in the presence of tert-butyl peroxybenzoate (TBPB) under metal-free conditions tends to proceed through cyanomethylation, spirocyclization and ester migration of the kinetically favoured coumarin derivatives. 1,2-Ester migration in the spiro-radical intermediate 10 does not proceed via the formation of the carboxyl radical 11 suggested by Sun and co-workers. Our results also demonstrate that the t-butoxy radical is substantially responsible the formation of the cyanomethyl radical by the abstraction of a hydrogen atom from acetonitrile. A computational study of metal-free cyanomethylation and cyclization of aryl alkynoates with acetonitrile is carried out employing density functional theory and high-level coupled-cluster methods, such as [CCSD(T)].![]()
Collapse
Affiliation(s)
- Selçuk Eşsiz
- Department of Chemistry
- Faculty of Science
- Atatürk University
- Erzurum 25240
- Turkey
| |
Collapse
|
14
|
Rao M, Wei Z, Yuan Y, Cheng J. Copper‐Catalyzed C−H Difluoroalkylation of Coumarins with Fluoroalkyl Bromides. ChemCatChem 2020. [DOI: 10.1002/cctc.202001025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Min Rao
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian Province 350116 P. R. China
- Department of Chemistry and Environmental Sciences Shangrao Normal University 85 Zhimin Road Shangrao Jiangxi Province 334001 P. R. China
| | - Zhenwei Wei
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian Province 350116 P. R. China
| | - Yaofeng Yuan
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian Province 350116 P. R. China
| | - Jiajia Cheng
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian Province 350116 P. R. China
| |
Collapse
|
15
|
Zheng X, Zhong T, Zhang L, Chen J, Chen Z, Jiang X, Yu C. Radical-Triggered Cyclization of Methylthio-Substituted Alkynones: Synthesis of Diverse 3-Alkylthiochromones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000663] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | - Lei Zhang
- University of Technology; Hangzhou P.R.China
| | - Junyu Chen
- University of Technology; Hangzhou P.R.China
| | - Zhiwei Chen
- University of Technology; Hangzhou P.R.China
| | | | | |
Collapse
|
16
|
Affiliation(s)
- Moriah Locklear
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
| | - Patrick H. Dussault
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
| |
Collapse
|
17
|
Khan I, Zaib S, Ibrar A. New frontiers in the transition-metal-free synthesis of heterocycles from alkynoates: an overview and current status. Org Chem Front 2020. [DOI: 10.1039/d0qo00698j] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the successful utilization of transition-metal-free approaches for the modular assembly of various heterocycles from alkynoates.
Collapse
Affiliation(s)
- Imtiaz Khan
- Department of Chemistry
- School of Natural Sciences
- The University of Manchester
- Manchester M13 9PL
- UK
| | - Sumera Zaib
- Department of Biochemistry
- Faculty of Life Sciences
- University of Central Punjab
- Lahore-54590
- Pakistan
| | - Aliya Ibrar
- Department of Chemistry
- Faculty of Natural Sciences
- The University of Haripur
- Haripur, KPK-22620
- Pakistan
| |
Collapse
|
18
|
Ahmad MS, Pulidindi IN, Li C. Recent advances in C–CN and C–H bond activation of green nitrile (MeCN) for organo-complexation, cyanation and cyanomethylation. NEW J CHEM 2020. [DOI: 10.1039/d0nj01996h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of green and inexpensive organic nitrile (MeCN) as a cyano and cyano-methyl source for organo-complexation, cyanation, and cyanomethylation is reviewed.
Collapse
Affiliation(s)
| | - Indra Neel Pulidindi
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Chuanlong Li
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- China
| |
Collapse
|
19
|
Sahoo H, Ramakrishna I, Mandal A, Baidya M. Atom Transfer Oxidative Radical Cascade of Aryl Alkynoates towards 1,1-Dichalcogenide Olefins. Chem Asian J 2019; 14:4549-4552. [PMID: 31264795 DOI: 10.1002/asia.201900820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/01/2019] [Indexed: 11/11/2022]
Abstract
An oxidative trifunctionalization of aryl alkynoates has been devised via the chalcogenide radical triggered intramolecular 1,4-aryl migration/decarboxylation cascade to prepare 1,1-dichalcogenide tetrasubstituted alkenes in high yields (up to 98 %). This operationally simple reaction proceeds under metal-free conditions, can be executed on gram scale, and highlights formal 1,1-difunctionalization of alkynes. Synthetic potential of this protocol was demonstrated through a twofold cascade rearrangement to access highly conjugated tetra-selenylated alkenes along with a cross-dehydrogenative annulation to prepare fluorene derivative.
Collapse
Affiliation(s)
- Harekrishna Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| |
Collapse
|
20
|
Barata-Vallejo S, Postigo A. Photocatalytic Difluoromethylation Reactions of Aromatic Compounds and Aliphatic Multiple C-C Bonds. Molecules 2019; 24:E4483. [PMID: 31817797 PMCID: PMC6943576 DOI: 10.3390/molecules24244483] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 02/05/2023] Open
Abstract
Among the realm of visible light photocatalytic transformations, late-stage difluoromethylation reactions (introduction of difluoromethyl groups in the last stages of synthetic protocols) have played relevant roles as the CF2X group substitutions exert positive impacts on the physical properties of organic compounds including solubility, metabolic stability, and lipophilicity, which are tenets of considerable importance in pharmaceutical, agrochemical, and materials science. Visible-light-photocatalyzed difluoromethylation reactions are shown to be accomplished on (hetero)aromatic and carbon-carbon unsaturated aliphatic substrates under mild and environmentally benign conditions.
Collapse
Affiliation(s)
| | - Al Postigo
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Orgánica, Junín 954, Buenos Aires CP1113, Argentina;
| |
Collapse
|
21
|
Yadav D, Ansari MA, Kumar M, Singh MS. Metal‐ and Catalyst‐Free One‐Pot Cascade Coupling of α‐Enolic Dithioesters with in situ Generated 4‐Chloro‐3‐formylcoumarin: Access to Thioxothiopyrano[3,2‐
c
]chromen‐5(2
H
)‐ones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901180] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Dhananjay Yadav
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Monish A. Ansari
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Mitilesh Kumar
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science Banaras Hindu University Varanasi 221005 India
| |
Collapse
|
22
|
Xiao Y, Liu ZQ. Free Radical Addition of Nitrile, Ketone, and Ester to Alkyne and the Selectivity Discussion. Org Lett 2019; 21:8810-8813. [PMID: 31633360 DOI: 10.1021/acs.orglett.9b03444] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A general and practical atom transfer radical addition (ATRA) of simple nitriles, ketones, and esters to alkynes was developed. It can allow an efficient access to a wide range of β,γ-unsaturated nitriles, ketones, and esters. The unique chemoselectivity in this system is also discussed.
Collapse
Affiliation(s)
- Yingxia Xiao
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China
| | - Zhong-Quan Liu
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of Pharmacy , Nanjing University of Chinese Medicine , Nanjing 210023 , China
| |
Collapse
|
23
|
|
24
|
Synthesis of cyanoalkyl indolines through cyanoalkylarylation of N-allyl anilines with alkyl nitriles under metal-free and neutral conditions. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
25
|
|
26
|
Kumar Verma P, Vishwakarma RA, Sawant SD. Reaction Medium as the Installing Reservoir for Key Functionalities in the Molecules. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Praveen Kumar Verma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Ram A. Vishwakarma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Sanghapal D. Sawant
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| |
Collapse
|
27
|
Wang X, Zhao X, Li X, Huo B, Dong Y, Liang D, Ma Y. Brønsted acid-catalyzed radical C H functionalization of acetone with N-allyl anilines to give 3-(3-oxobutyl)indolines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
28
|
Anselmo M, Basso A, Protti S, Ravelli D. Photoredox-Catalyzed Generation of Acetonyl Radical in Flow: Theoretical Investigation and Synthetic Applications. ACS Catal 2019. [DOI: 10.1021/acscatal.8b03875] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Manuel Anselmo
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16100 Genova, Italy
| | - Andrea Basso
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16100 Genova, Italy
| | - Stefano Protti
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Davide Ravelli
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| |
Collapse
|
29
|
Zhang J, Song C, Sheng L, Liu P, Sun P. Annulation of 1-(2-Aminoaryl)pyrroles, Ethers with Elemental Sulfur To Give 1,3,6-Benzothiadiazepine Derivatives through Double C–S Bond Formation and C–O Cleavage of Ethers. J Org Chem 2019; 84:2191-2199. [DOI: 10.1021/acs.joc.8b03187] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Zhang
- School 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, China
| | - Chuwen Song
- School 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, China
| | - Linfeng Sheng
- School 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, China
| | - Ping Liu
- School 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, China
| | - Peipei Sun
- School 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, China
| |
Collapse
|
30
|
Kong H, Li Q, Yin Y, Huang M, Kim JK, Zhu Y, Li Y, Wu Y. An efficient light on–off one-pot method for the synthesis of 3-styryl coumarins from aryl alkynoates. Org Biomol Chem 2019; 17:4621-4628. [DOI: 10.1039/c9ob00421a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient one-pot stepwise method to synthesize 3-styryl-4-arylcoumarins from simple alkynoates is demonstrated.
Collapse
Affiliation(s)
- Hongjun Kong
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Qingrui Li
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Yunnian Yin
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Mengmeng Huang
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Jung Keun Kim
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Yu Zhu
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Yabo Li
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Yangjie Wu
- College of Chemistry and Molecular Engineering
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| |
Collapse
|
31
|
Hou H, Xu Y, Yang H, Yan C, Shi Y, Zhu S. Regioselective radical arylation: silver-mediated synthesis of 3-phosphorylated coumarins, quinolin-2(1H)-one and benzophosphole oxides. Org Biomol Chem 2019; 17:8175-8184. [DOI: 10.1039/c9ob01585j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A silver-mediated domino radical addition/cyclization reaction of diaryl- or dialkyl-phosphine oxides with propynoic acid derivatives delivering 3-phosphorylated coumarins, quinolin-2(1H)-one and benzophosphole oxides is presented.
Collapse
Affiliation(s)
- Hong Hou
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Yue Xu
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Haibo Yang
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| |
Collapse
|
32
|
Feng CT, Wei HJ, Li J, Peng Y, Xu K. Synthesis of Cyanide-Functionalized Imidazo[1,5-a]quinolines via Copper-Mediated Aerobic Three-Component Cyclizations. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801060] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cheng-Tao Feng
- School of Chemical Engineering; Anhui University of Science and Technology, Huainan; Anhui 232001 People's Republic of China
| | - Hong-Juan Wei
- School of Chemical Engineering; Anhui University of Science and Technology, Huainan; Anhui 232001 People's Republic of China
| | - Jing Li
- School of Chemical Engineering; Anhui University of Science and Technology, Huainan; Anhui 232001 People's Republic of China
| | - Ya Peng
- School of Chemical Engineering; Anhui University of Science and Technology, Huainan; Anhui 232001 People's Republic of China
| | - Kun Xu
- Engineering Technology Research Center of Henan Province for Solar Catalysis; College of Chemistry and Pharmaceutical Engineering; Nanyang Normal University; Nanyang 473061 People's Republic of China
| |
Collapse
|
33
|
Zhang R, Jin S, Liu Q, Lin S, Yan Z. Transition Metal-Free Cross-Dehydrogenative Coupling Reaction of Coumarins with Acetonitrile or Acetone. J Org Chem 2018; 83:13030-13035. [DOI: 10.1021/acs.joc.8b01508] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rongxing Zhang
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road, Nanchang 330031, P. R. China
| | - Shengzhou Jin
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road, Nanchang 330031, P. R. China
| | - Qian Liu
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road, Nanchang 330031, P. R. China
| | - Sen Lin
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road, Nanchang 330031, P. R. China
| | - Zhaohua Yan
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road, Nanchang 330031, P. R. China
| |
Collapse
|
34
|
Zhu XT, Lu QL, Wang X, Zhang TS, Hao WJ, Tu SJ, Jiang B. Substrate-Controlled Generation of 3-Sulfonylated 1-Indenones and 3-Arylated (Z)-Indenes via Cu-Catalyzed Radical Cyclization Cascades of o-Alkynylbenzonitriles. J Org Chem 2018; 83:9890-9901. [DOI: 10.1021/acs.joc.8b01343] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao-Tong Zhu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People’s Republic of China
| | - Qiu-Li Lu
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People’s Republic of China
| | - Xiang Wang
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, People’s Republic of China
| | - Tian-Shu Zhang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Bo Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| |
Collapse
|
35
|
Visible-light photoredox catalyzed cyclization of aryl alkynoates for the synthesis of trifluoromethylated coumarins. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.06.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
36
|
Zhang J, Cheng S, Cai Z, Liu P, Sun P. Radical Addition Cascade Cyclization of 1,6-Enynes with DMSO To Access Methylsulfonylated and Carbonylated Benzofurans under Transition-Metal-Free Conditions. J Org Chem 2018; 83:9344-9352. [DOI: 10.1021/acs.joc.8b01265] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jie Zhang
- School 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, China
| | - Shijing Cheng
- School 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, China
| | - Zhiqiang Cai
- School 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, China
| | - Ping Liu
- School 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, China
| | - Peipei Sun
- School 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, China
| |
Collapse
|
37
|
He Y, Wang Y, Gao J, Zeng L, Li S, Wang W, Zheng X, Zhang S, Gu L, Li G. Catalytic, metal-free alkylheteroarylation of alkenes via distal heteroaryl ipso-migration. Chem Commun (Camb) 2018; 54:7499-7502. [PMID: 29923554 DOI: 10.1039/c8cc03911a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A new direct alkylheteroarylation of alkenes with simple alkylnitriles via distal heteroaryl ipso-migration has been accomplished under metal-free conditions, in which inexpensive alkylnitriles served as radical precursors, which together with ease of operation makes this process a very practical protocol.
Collapse
Affiliation(s)
- Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Yaqi Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Jun Gao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Liang Zeng
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Shusheng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Wei Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Xiaohui Zheng
- College of Life Science, Northwest University, Xi'an, Shanxi Province 710069, P. R. China
| | - Shengyong Zhang
- School of Pharmacy, Fourth Military Medical University, Xi'an, Shanxi Province 710032, P. R. China
| | - Lijun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan Province 650500, P. R. China.
| |
Collapse
|
38
|
Chen L, Wu L, Duan W, Wang T, Li L, Zhang K, Zhu J, Peng Z, Xiong F. Photoredox-Catalyzed Cascade Radical Cyclization of Ester Arylpropiolates with CF3SO2Cl To Construct 3-Trifluoromethyl Coumarin Derivatives. J Org Chem 2018; 83:8607-8614. [DOI: 10.1021/acs.joc.8b00581] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
39
|
Sahoo H, Singh S, Baidya M. Radical Cascade Reaction of Aryl Alkynoates at Room Temperature: Synthesis of Fully Substituted α,β-Unsaturated Acids with Chalcogen Functionality. Org Lett 2018; 20:3678-3681. [DOI: 10.1021/acs.orglett.8b01474] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Harekrishna Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Saibal Singh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| |
Collapse
|
40
|
Liu Y, Wang QL, Zhou CS, Xiong BQ, Zhang PL, Kang SJ, Yang CA, Tang KW. Visible-light-mediated cascade difunctionalization/cyclization of alkynoates with acyl chlorides for synthesis of 3-acylcoumarins. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
41
|
Ni S, Zhou J, Mei H, Han J. Radical reactions of aryl alkynoates in organic synthesis: Recent advances. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
42
|
Sasaki T, Moriyama K, Togo H. One-pot preparation of 4-aryl-3-bromocoumarins from 4-aryl-2-propynoic acids with diaryliodonium salts, TBAB, and Na 2S 2O 8. Beilstein J Org Chem 2018; 14:345-353. [PMID: 29507639 PMCID: PMC5815302 DOI: 10.3762/bjoc.14.22] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 02/01/2023] Open
Abstract
Various 4-aryl-3-bromocoumarins were smoothly obtained in moderate yields in one pot by treating 3-aryl-2-propynoic acids with diaryliodonium triflates and K2CO3 in the presence of CuCl, followed by the reaction with tetrabutylammonium bromide (TBAB) and Na2S2O8. The obtained 3-bromo-4-phenylcoumarin was transformed into 4-phenylcoumarin derivatives bearing C-H, C-S, C-N, and C-C bonds at 3-position.
Collapse
Affiliation(s)
- Teppei Sasaki
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan.,Molecular Chirality Research Center, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| |
Collapse
|
43
|
Kawaai K, Yamaguchi T, Yamaguchi E, Endo S, Tada N, Ikari A, Itoh A. Photoinduced Generation of Acyl Radicals from Simple Aldehydes, Access to 3-Acyl-4-arylcoumarin Derivatives, and Evaluation of Their Antiandrogenic Activities. J Org Chem 2018; 83:1988-1996. [DOI: 10.1021/acs.joc.7b02933] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Kazuki Kawaai
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Tomoaki Yamaguchi
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Satoshi Endo
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akira Ikari
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| |
Collapse
|
44
|
Deng Q, Xu Y, Liu P, Tan L, Sun P. Photoredox-catalyzed cascade addition/cyclization of N-propargyl aromatic amines: access to 3-difluoroacetylated or 3-fluoroacetylated quinolines. Org Chem Front 2018. [DOI: 10.1039/c7qo00714k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
3-Difluoroacetylated quinolines and 3-fluoroacetylated quinolines were synthesized via a visible-light-induced cascade addition/cyclization of N-propargyl aromatic amines catalyzed by fac-Ir(ppy)3 under mild conditions.
Collapse
Affiliation(s)
- Qinfei Deng
- 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
| | - Yan Xu
- 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
| | - Liping Tan
- 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
| |
Collapse
|
45
|
Zhang W, Yang C, Pan YL, Li X, Cheng JP. Synthesis of 3-cyanomethylated coumarins by a visible-light-mediated direct cyanomethylation of aryl alkynoates. Org Biomol Chem 2018; 16:5788-5792. [DOI: 10.1039/c8ob01513a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A visible-light-promoted, mild, and direct cyanomethylation of aryl alkynoates has been developed.
Collapse
Affiliation(s)
- Wei Zhang
- State Key Laboratory of Elemento-organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
- China
| | - Chen Yang
- State Key Laboratory of Elemento-organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
- China
| | - Yu-Liang Pan
- State Key Laboratory of Elemento-organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
- China
| | - Xin Li
- State Key Laboratory of Elemento-organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
- China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
- China
| |
Collapse
|
46
|
Wang Q, Yang C, Jiang C. Visible-light-promoted radical acylation/cyclization of alkynoates with aldehydes for the synthesis of 3-acylcoumarins. Org Biomol Chem 2018; 16:8196-8204. [DOI: 10.1039/c8ob02232a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A new, efficient, and atom-economic visible-light-promoted radical acylation/cyclization of alkynoates with aldehydes was developed for the synthesis of 3-acylcoumarins.
Collapse
Affiliation(s)
- Qiumei Wang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Chao Yang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Chao Jiang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| |
Collapse
|
47
|
Huang MH, Hao WJ, Li G, Tu SJ, Jiang B. Recent advances in radical transformations of internal alkynes. Chem Commun (Camb) 2018; 54:10791-10811. [DOI: 10.1039/c8cc04618b] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review highlights the recent progress in the radical transformation of internal alkynes and focuses on the reaction mechanisms by carbon/heteroatom-centered triggered additions, and offers a comprehensive overview on the existing procedures and employed methodologies.
Collapse
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
| | - 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
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences
- Nanjing University
- Nanjing 210093
- P. R. China
- Department of Chemistry and Biochemistry
| | - Shu-Jiang Tu
- 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
| |
Collapse
|
48
|
Chu XQ, Ge D, Shen ZL, Loh TP. Recent Advances in Radical-Initiated C(sp3)–H Bond Oxidative Functionalization of Alkyl Nitriles. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03334] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xue-Qiang Chu
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Danhua Ge
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Zhi-Liang Shen
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Teck-Peng Loh
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| |
Collapse
|
49
|
Zhang X, Liu Z, Gao Y, Li F, Tian Y, Li C, Jia X, Li J. Selective Oxidative Coupling Reaction of Isocyanides Using Peroxide as Switchable Alkylating and Alkoxylating Reagent. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700953] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xinglu Zhang
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Zhiqiang Liu
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Yu Gao
- Department of Pharmacy; China Pharmaceutical University; Nanjing 211198 People's Republic of China
| | - Feng Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Yaming Tian
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Chunju Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Xueshun Jia
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Jian Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| |
Collapse
|
50
|
Yu Y, Cai Z, Yuan W, Liu P, Sun P. Radical Addition/Insertion/Cyclization Cascade Reaction To Assemble Phenanthridines from N-Arylacrylamide Using Cyano as a Bridge under Photoredox Catalysis. J Org Chem 2017; 82:8148-8156. [DOI: 10.1021/acs.joc.7b01447] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yulan Yu
- School 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, China
| | - Zhiqiang Cai
- School 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, China
| | - Weiwen Yuan
- School 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, China
| | - Ping Liu
- School 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, China
| | - Peipei Sun
- School 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, China
| |
Collapse
|