1
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Lin SN, Deng Y, Zhong H, Mao LL, Ji CB, Zhu XH, Zhang X, Yang BM. Visible Light-Induced Radical Cascade Difluoromethylation/Cyclization of Unactivated Alkenes: Access to CF 2H-Substituted Polycyclic Imidazoles. ACS OMEGA 2024; 9:28129-28143. [PMID: 38973879 PMCID: PMC11223139 DOI: 10.1021/acsomega.4c01177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 07/09/2024]
Abstract
An efficient and mild protocol for the visible light-induced radical cascade difluoromethylation/cyclization of imidazoles with unactivated alkenes using easily accessible and bench-stable difluoromethyltriphenylphosphonium bromide as the precursor of the -CF2H group has been developed to afford CF2H-substituted polycyclic imidazoles in moderate to good yields. This strategy, along with the construction of Csp3-CF2H/C-C bonds, is distinguished by mild conditions, no requirement of additives, simple operation, and wide substrate scope. In addition, the mechanistic experiments have indicated that the difluoromethyl radical pathway is essential for the methodology.
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Affiliation(s)
- Sheng-Nan Lin
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Yuanyuan Deng
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Hanxun Zhong
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Liu-Liang Mao
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Cong-Bin Ji
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Xian-Hong Zhu
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Xiaolan Zhang
- College
of Chemistry and Environment Science, Shangrao
Normal University, Shangrao 334001, China
| | - Bin-Miao Yang
- Joint
School of National University of Singapore and Tianjin University, Fuzhou 350207, China
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2
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Ren X, Zhang T, Wang B, Jin W, Xia Y, Wu S, Liu C, Zhang Y. Visible-Light-Driven Bifunctional Photocatalytic Radical-Cascade Selenocyanation/Cyclization of Acrylamides with KSeCN. J Org Chem 2024; 89:5783-5796. [PMID: 38591967 DOI: 10.1021/acs.joc.4c00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
A visible-light-induced radical-cascade selenocyanation/cyclization of N-alkyl-N-methacryloyl benzamides, 2-aryl-N-acryloyl indoles, and N-methacryloyl-2-phenylbenzimidazoles with potassium isoselenocyanate (KSeCN) was developed. The reactions were carried out with inexpensive KSeCN as a selenocyanation reagent, potassium persulfate as an oxidant, 2,4,6-triphenylpyrylium tetrafluoroborate as a bifunctional catalyst for phase-transfer catalysis, and photocatalysis. A library of selenocyanate-containing isoquinoline-1,3(2H,4H)-diones, indolo[2,1-a]isoquinoline-6(5H)-ones, and benzimidazo[2,1-a]isoquinolin-6(5H)-ones were achieved in moderate to excellent yields at room temperature under visible-light and ambient conditions. Importantly, the present protocol features mild reaction conditions, large-scale synthesis, simple manipulation, product derivatization, good functional group, and heterocycle tolerance.
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Affiliation(s)
- Xinxin Ren
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Tao Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Bin Wang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Yu Xia
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Shaofeng Wu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Chenjiang Liu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Yonghong Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
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3
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Wu HL, Zhang WK, Zhang CC, Wang LT, Yang WH, Tian WC, Ge GP, Xie LY, Yi R, Wei WT. Chemodivergent Tandem Radical Cyclization of Alkene-Substituted Quinazolinones: Rapid Access to Mono- and Di-Alkylated Ring-Fused Quinazolinones. Chemistry 2023; 29:e202301390. [PMID: 37280159 DOI: 10.1002/chem.202301390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/08/2023]
Abstract
Chemodivergent tandem radical cyclization offers exciting possibilities for the synthesis of structurally diverse cyclic compounds. Herein, we revealed a chemodivergent tandem cyclization of alkene-substituted quinazolinones under metal- and base-free conditions, this transformation is initiated by alkyl radicals produced from oxidant-induced α-C(sp3 )-H functionalization of alkyl nitriles or esters. The reaction resulted in the selective synthesis of a series of mono- and di-alkylated ring-fused quinazolinones by modulating the loading of oxidant, reaction temperature, and reaction time. Mechanistic investigations show that the mono-alkylated ring-fused quinazolinones is constructed by the key process of 1,2-hydrogen shift, whereas the di-alkylated ring-fused quinazolinones is mainly achieved through crucial steps of resonance and proton transfer. This protocol is the first example of remote second alkylation on the aromatic ring via α-C(sp3 )-H functionalization and difunctionalization achieved by association of two unsaturated bonds in radical cyclization.
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Affiliation(s)
- Hong-Li Wu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Wei-Kang Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Can-Can Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ling-Tao Wang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Wen-Hui Yang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Wen-Chan Tian
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Guo-Ping Ge
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Long-Yong Xie
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan, 425100, China
| | - Rongnan Yi
- Criminal Technology Department, Hunan Police Academy, Changsha, Hunan, 410138, China
| | - Wen-Ting Wei
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
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4
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Wang S, Li S, Liu L, Ying J, Wu XF. Palladium-Catalyzed Carbonylative Synthesis of Amide-Containing Indolo[2,1- a]isoquinolines from Alkene-Tethered Indoles and Nitroarenes. Org Lett 2023; 25:821-825. [PMID: 36717216 DOI: 10.1021/acs.orglett.2c04363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In this new procedure, amide-containing indolo[2,1-a]isoquinoline scaffolds were prepared by palladium-catalyzed carbonylative cyclization of alkene-tethered indoles with nitroarenes. By using Mo(CO)6 as the CO source and reductant and nitroarenes as the nitrogen source, this reaction produced various amide-containing indolo[2,1-a]isoquinoline derivatives in good yields in general. Furthermore, the late-stage modifications of bioactive molecules using this protocol were demonstrated as well.
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Affiliation(s)
- Siqi Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shuwei Li
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Liangcai Liu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jun Ying
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.,Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straβe 29a, 18059 Rostock, Germany
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5
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Yu WQ, Xiong BQ, Zhong LJ, Liu Y. Visible-light-promoted radical cascade alkylation/cyclization: access to alkylated indolo/benzoimidazo[2,1- a]isoquinolin-6(5 H)-ones. Org Biomol Chem 2022; 20:9659-9671. [PMID: 36416184 DOI: 10.1039/d2ob01732f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new protocol is herein described for the direct generation of alkylated indolo/benzoimidazo[2,1-a]isoquinolin-6(5H)-one derivatives by using Hantzsch esters as alkylation radical precursors using a photoredox/K2S2O8 system. This oxidative alkylation of active alkenes involves a radical cascade cyclization process and a sequence of Hantzsch ester single electron oxidation, C-C bond cleavage, alkylation, arylation and oxidative deprotonation.
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Affiliation(s)
- Wen-Qin Yu
- 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.
| | - Long-Jin Zhong
- 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.
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6
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Palladium-catalyzed carbonylative cyclization of alkene-tethered indoles with phenols or arylboronic acids: construction of carbonyl-containing indolo[2,1-a]isoquinoline derivatives. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Upreti GC, Singh T, Ranjan S, Gupta RK, Singh A. Visible-Light-Mediated Three-Component Cascade Sulfonylative Annulation. ACS OMEGA 2022; 7:29728-29733. [PMID: 36061680 PMCID: PMC9434776 DOI: 10.1021/acsomega.2c02302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Visible-light-promoted cascade radical cyclization for the synthesis of sulfonylated benzimidazo/indolo[2,1-a]iso-quinolin-6(5H)-ones has been reported. The reaction provides transition-metal-free and expeditious access to sulfonylated polyaromatics. The use of sodium metabisulfite as a SO2 surrogate and the rapid generation of molecular complexity using a three-component photochemical protocol are the salient features of this reaction manifold.
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Affiliation(s)
- Ganesh Chandra Upreti
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Tavinder Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Sudhir Ranjan
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Raju Kumar Gupta
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Anand Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
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8
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Wang X, Meng J, Zhao D, Tang S, Sun K. Synthesis and applications of thiosulfonates and selenosulfonates as free-radical reagents. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Zhang Z, Cao X, Song X, Wang G, Shi B, Li X, Ma N, Liu L, Zhang G. Metal-free nucleophilic 7,8-dearomatization of quinolines: Spiroannulation of aminoquinoline protected amino acids. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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pan Y, Xu J, Zhang H, Hao R, Shen Z, Huang W. The Synthesis of 5,6‐dihydrobenzo[4,5]imidazo[2,1‐a]isoquinoline Derivatives via Metal‐free Radical Cascade Pathway. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Alizadeh A, Bagherinejad A, Kayanian J. 1,3‐Dimethylbarbituric Acid Promoted Metal‐Free Cascade Annulation for Straightforward Access to Benzimidazole‐Fused Heterocycles. ChemistrySelect 2022. [DOI: 10.1002/slct.202200762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Akram Bagherinejad
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Jasmine Kayanian
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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12
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Li J, Mei L, Cai X, Zhang C, Cao T, Huang X, Liu Y, Wei W. Transition‐Metal‐Free Radical Cyclization of 2‐Arylbenzoimidazoles with Unactivated Alkanes
via
C(
sp
3
)−H Functionalizations in Aqueous Media. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiao‐Zhe Li
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Lan Mei
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Xue‐Er Cai
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Can‐Can Zhang
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Ting‐Ting Cao
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Xun‐Jie Huang
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
| | - Yi‐Lin Liu
- College of Chemistry and Materials Engineering Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material Huaihua University Huaihua Hunan 418008 People's Republic of China
| | - Wen‐Ting Wei
- Institute of Drug Discovery Technology Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang 315211 People's Republic of China
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13
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Guo Y, Huang PF, Liu Y, He BH. Visible-light-induced acylation/cyclization of active alkenes: facile access to acylated isoquinolinones. Org Biomol Chem 2022; 20:3767-3778. [PMID: 35438126 DOI: 10.1039/d2ob00528j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrogen heterocycles, especially polycyclic compounds, are significant skeletons in valuable molecules. Herein, we developed an efficient and practical visible-light-induced acylation/cyclization of active alkenes with acyl oxime derivatives for constructing acylated indolo/benzimidazo-[2,1,a]isoquinolin-6(5H) ones. This reaction was compatible with various functional groups and a series of fused indole/imidazole skeletons were prepared in up to 95% yield at room temperature.
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Affiliation(s)
- Yang Guo
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Peng-Fei Huang
- 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.
| | - Bin-Hong He
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
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14
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Zheng YN, Liu Y, Cai XE, Wu HL, Huang XJ, Liu Y, Wei WT. Ring‐opening/cyclization of cyclobutanone oxime esters with alkenes in biomass‐derived solvent using copper catalyst and inorganic oxidant. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yan-Nan Zheng
- Ningbo University School of Materials Science and Chemical Engineering 315211 Ningbo CHINA
| | - Yi Liu
- Ningbo University School of Materials Science and Chemical Engineering 315211 Ningbo CHINA
| | - Xue-Er Cai
- Ningbo University School of Materials Science and Chemical Engineering 315211 Ningbo CHINA
| | - Hong-Li Wu
- Ningbo University School of Materials Science and Chemical Engineering 315211 Ningbo CHINA
| | - Xun-Jie Huang
- Ningbo University School of Materials Science and Chemical Engineering 315211 Ningbo CHINA
| | - Yilin Liu
- Huaihua University College of Chemistry and Materials Engineering 418008 Huaihua CHINA
| | - Wen-Ting Wei
- Ningbo University Materials Science and Chemical Engineering 818, Fenghua Road, Jiangbei District 315211 Ningbo CHINA
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15
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Huang AX, Zhu HL, Zeng FL, Chen XL, Huang XQ, Qu LB, Yu B. 1-Acryloyl-2-cyanoindole: A Skeleton for Visible-Light-Induced Cascade Annulation. Org Lett 2022; 24:3014-3018. [PMID: 35420829 DOI: 10.1021/acs.orglett.2c00927] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
1-Acryloyl-2-cyanoindoles were found to be novel and efficient skeletons in visible-light-induced persulfate-promoted cascade cyclization reactions. With this transition-metal-free photocatalytic procedure, various sulfonated/thiocyanated pyrrolo[1,2-a]indolediones were synthesized from 1-acryloyl-2-cyanoindoles with sulfonyl hydrazides/NH4SCN at room temperature under mild reaction conditions.
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Affiliation(s)
- An-Xiang Huang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Hu-Lin Zhu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Fan-Lin Zeng
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Lan Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xian-Qiang Huang
- School of Chemistry & Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ling-Bo Qu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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16
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Zhang L, Chen P, Bai S. Decarboxylative alkylarylation of alkenes with PhI(O2CR)2 to access benzimidazo[2,1-a]isoquinolin-6(5H)-ones catalyzed by a low-valent divanadium complex. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Yang D, Yan Q, Zhu E, Lv J, He WM. Carbon–sulfur bond formation via photochemical strategies: An efficient method for the synthesis of sulfur-containing compounds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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He MX, Yao Y, Ai CZ, Mo ZY, Wu YZ, Zhou Q, Pan YM, Tang HT. Electrochemically-mediated C–H functionalization of allenes and 1,3-dicarbonyl compounds to construct tetrasubstituted furans. Org Chem Front 2022. [DOI: 10.1039/d1qo01458g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We reported an electrocatalytic C–H activation method to construct novel highly functionalized tetrasubstituted furan derivatives, which uses allenes and 1,3-dicarbonyl compounds as substrates.
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Affiliation(s)
- Mu-Xue He
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
- School of Public Health, Guilin Medical University, Guilin 541004, China
| | - Yan Yao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Chun-Zhi Ai
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zu-Yu Mo
- Pharmacy School, Guilin Medical University, Guilin 541004, China
| | - Yu-Zheng Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Qi Zhou
- Adesis Inc. A Universal Display company, New Castle, Delaware 19720, USA
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Hao-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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19
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Synthesis of arylsulfonyl-substituted indolo[2,1-a]isoquinolin-6(5H)-one derivatives via a TBAI-catalyzed radical cascade cyclization. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Feng Y, He J, Wei Y, Tang T, Li C, Liu P. One-Pot Two-Step Strategy for Efficient Synthesis of 3-Aryl-4-(arylthio)-1H-pyrazol-5-amines Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107045] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Liu B, Wang Z, Sun K, Tang S, Wang X. Silver-Mediated Radical Trifluoromethylthiolation Cyclization: Synthesis of CF 3S-Containing Benzimidazole[2,1- a]isoquinolines. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202203053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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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.
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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
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23
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Liu Y, Zhang N, Xu Y, Chen Y. Visible-Light-Induced Radical Cascade Reaction of 1-Allyl-2-ethynylbenzoimidazoles with Thiosulfonates to Assemble Thiosulfonylated Pyrrolo[1,2- a]benzimidazoles. J Org Chem 2021; 86:16882-16891. [PMID: 34739244 DOI: 10.1021/acs.joc.1c02082] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A visible-light-induced radical domino reaction of 1-allyl-2-ethynylbenzoimidazoles with thiosulfonates was developed, which generated the thiosulfonylated pyrrolo[1,2-a]benzimidazoles in moderate to good yields. This reaction proceeded under transition-metal-free conditions with good functional group tolerance and high regioselectivity. The possible pathway involved thiosulfonates were activated through the energy transfer route promoted by photocatalysis.
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Affiliation(s)
- Yan Liu
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Niuniu Zhang
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Yanli Xu
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
| | - Yanyan Chen
- Pharmacy School, Guilin Medical University, Guilin, 541004, People's Republic of China
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24
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Lin S, Cui J, Chen Y, Li Y. Copper-Catalyzed Direct Cycloaddition of Imidazoles and Alkenes to Trifluoromethylated Tricyclic Imidazoles. J Org Chem 2021; 86:15768-15776. [PMID: 34632765 DOI: 10.1021/acs.joc.1c01832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We reported herein a copper-catalyzed trifluoromethylarylated cycloaddition of imidazoles and olefins using CF3SO2Cl as the radical source to synthesize highly functionalized tricyclic imidazoles. This procedure exhibits a wide range of substrate scope with 25%-93% isolated yields (36 examples). Mechanistic studies were carried out to support a free trifluoromethyl radical pathway.
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Affiliation(s)
- Shengnan Lin
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jianchao Cui
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yu Chen
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yi Li
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
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25
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Persulfate promoted tandem radical cyclization of ortho-cyanoarylacrylamides with oxamic acids for construction of carbamoyl quinoline-2,4-diones under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Kang QQ, Zhang WK, Ge GP, Zheng H, Wei WT. The construction of benzimidazo[2,1- a]isoquinolin-6(5 H)-ones from N-methacryloyl-2-phenylbenzoimidazoles through radical strategies. Org Biomol Chem 2021; 19:8874-8885. [PMID: 34610071 DOI: 10.1039/d1ob01465j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Benzimidazo[2,1-a]isoquinolin-6(5H)-one constitutes a structurally unique class of tetracyclic N-heterocycles that are found throughout a myriad of biologically active natural products, pharmaceutical compounds, and functional materials. Various synthetic routes for the preparation of benzimidazo[2,1-a]isoquinolin-6(5H)-ones have been reported. In particular, the use of N-methacryloyl-2-phenylbenzoimidazoles to construct benzimidazo[2,1-a]isoquinolin-6(5H)-ones through various radical strategies have attracted widespread attention due to the versatility and simple preparation of raw materials, as well as the step-economy and mild reaction conditions. Using representative examples, we highlight significant progress in the synthesis of benzimidazo[2,1-a]isoquinolin-6(5H)-ones, including the selection of the catalytic system, substrate scope, mechanistic understanding, and applications. The contents of this review focus on the development of C-, S-, P-, and Si-centered radical addition-intramolecular cyclization strategies.
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Affiliation(s)
- Qing-Qing Kang
- 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.
| | - Wei-Kang Zhang
- 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.
| | - Guo-Ping Ge
- 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.
| | - Hongxing Zheng
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Wen-Ting Wei
- 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.
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27
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Wang C, Sun G, Huang HL, Liu J, Tang H, Li Y, Hu H, He S, Gao F. Visible-Light-Driven Sulfonylation/Cyclization to Access Sulfonylated Benzo[4,5]imidazo[2,1-a]isoquinolin-6(5H)-ones. Chem Asian J 2021; 16:2618-2621. [PMID: 34342941 DOI: 10.1002/asia.202100681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/18/2021] [Indexed: 12/17/2022]
Abstract
Visible-light-driven sulfonylation/cyclization of N-methacryloyl-2-phenylbenzoimidazoles has been successfully developed. Using commercially available sulfonyl chloride as sulfonylation reagent, a wide range of sulfonylated benzo[4,5]imidazo[2,1-a]isoquinolin-6(5H)-ones with potential antitumor activity were provided in acceptable to excellent yields. This method has the advantages of mild reaction conditions and outstanding functional group tolerance, and provides a new strategy for the development of potential antitumor lead compounds.
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Affiliation(s)
- Chen Wang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Guoquan Sun
- Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200092, P. R. China
| | - Hong-Li Huang
- College of Chemistry and Chemical Engineering, Liaocheng University, Shandong, 252059, P. R. China
| | - Jing Liu
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Hua Tang
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Yinghua Li
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Honggang Hu
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Shipeng He
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
| | - Fei Gao
- Institute of Translation Medicine, Shanghai University, Shanghai, 200444, P. R. China
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28
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Ramesh V, Gangadhar M, Nanubolu JB, Adiyala PR. Visible-Light-Induced Deaminative Alkylation/Cyclization of Alkyl Amines with N-Methacryloyl-2-phenylbenzoimidazoles in Continuous-Flow Organo-Photocatalysis. J Org Chem 2021; 86:12908-12921. [PMID: 34477379 DOI: 10.1021/acs.joc.1c01555] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Herein, we present a metal-free visible-light-induced eosin-y-catalyzed deaminative strategy for the sequential alkylation/cyclization of N-methacryloyl-2-phenylbenzoimidazoles with alkyl amine-derived Katritzky salts, which provides an efficient avenue for the construction of various benzo[4,5]imidazo[2,1-a]isoquinolin-6(5H)-one derivatives in moderate to excellent yields under mild reaction conditions. The key enabling feature of this novel reaction includes utilization of redox-active pyridinium salts from abundant and inexpensive primary amine feedstocks that were converted into alkyl radicals via C-N bond scission and subsequent alkylation/cyclization with N-methacryloyl-2-phenylbenzoimidazoles by the formation of two new C-C bonds. In addition, we implemented this protocol for a variety of amino acids, affording the products in moderate yields. Moreover, the novel, environmentally benign batch protocol was further carried out in a continuous-flow regime by utilizing a perfluoroalkoxy alkane tubing microreactor under optimized reaction conditions with a blue light-emitting diode light source, enabling excellent yields and a shorter reaction time (19 min) versus the long reaction time (16 h) of the batch reaction. The reaction displays excellent functional group tolerance, easy operation, scalability, mild reaction conditions, and broad synthetic utility.
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Affiliation(s)
- Vankudoth Ramesh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Maram Gangadhar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jagadeesh Babu Nanubolu
- Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Praveen Reddy Adiyala
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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29
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Luo Y, Tian T, Nishihara Y, Lv L, Li Z. Iron-catalysed radical cyclization to synthesize germanium-substituted indolo[2,1- a]isoquinolin-6(5 H)-ones and indolin-2-ones. Chem Commun (Camb) 2021; 57:9276-9279. [PMID: 34519301 DOI: 10.1039/d1cc03907e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A simple and efficient strategy for iron-catalysed cascade radical cyclization was developed, by which an array of germanium-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and indolin-2-ones were obtained in one pot with germanium hydrides as radical precursors. A rapid intramolecular radical trapping mode enabled the selective arylgermylation of alkenes over the prevalent hydrogermylation reaction.
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Affiliation(s)
- Yani Luo
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Tian Tian
- Department of Chemistry, Renmin University of China, Beijing 100872, China. .,Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
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30
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Pan C, Yuan C, Yu J. Molecular Oxygen‐Mediated Radical Cyclization of Acrylamides with Boronic Acids. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100853] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Changduo Pan
- School of Chemical and Environmental Engineering Jiangsu University of Technology Changzhou 213001 People's Republic of China
| | - Cheng Yuan
- School of Chemical and Environmental Engineering Jiangsu University of Technology Changzhou 213001 People's Republic of China
| | - Jin‐Tao Yu
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 People's Republic of China
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31
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Lin S, Chen Y, Luo X, Li Y. Sustainable Cascades to Difluoroalkylated Polycyclic Imidazoles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100868] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sheng‐Nan Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education and Yunnan Province School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Yu Chen
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University Fuzhou 350108 China
| | - Xiao‐Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education and Yunnan Province School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Yi Li
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry Fuzhou University Fuzhou 350108 China
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32
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Xie X, Li Y, Xia Y, Luo K, Wu L. Visible Light‐Induced Metal‐Free and Oxidant‐Free Radical Cyclization of (2‐Isocyanoaryl)(methyl)sulfanes with Ethers. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiao‐Yu Xie
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yang Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yun‐Tao Xia
- School of Chemistry & Chemical Engineering Henan University of Technology Zhengzhou 450001 P. R. China
| | - Kai Luo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 P. R. China
- College of Chemical Engineering Xinjiang Agricultural University Urumqi 830052 P. R. China
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33
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Li HC, Sun K, Li X, Wang SY, Chen XL, He SQ, Qu LB, Yu B. Metal-Free Photosynthesis of Alkylated Benzimidazo[2,1- a]isoquinoline-6(5 H)-ones and Indolo[2,1- a]isoquinolin-6(5 H)-ones in PEG-200. J Org Chem 2021; 86:9055-9066. [PMID: 34157844 DOI: 10.1021/acs.joc.1c01022] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A visible-light-induced decarboxylation reaction was developed for the synthesis of alkylated benzimidazo[2,1-a]isoquinoline-6(5H)-ones and indolo[2,1-a]isoquinolin-6(5H)-ones under metal-free conditions. Impressively, metal catalysts and traditionally volatile organic solvents could be effectively avoided.
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Affiliation(s)
- Hao-Cong Li
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Kai Sun
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiang Li
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Si-Yang Wang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Lan Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Shuai-Qi He
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ling-Bo Qu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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34
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Xin W, Guo S, Zhang Y, Zhang Z, Zhang G, Ye Y, Sun K. Metal‐Free, organic selenium enabled radical relay azidation‐carbocyclization. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100208] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sa Guo
- Henan Normal University CHINA
| | | | - Zhiguo Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education CHINA
| | | | | | - Kai Sun
- Anyang Normal University CHINA
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35
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Pan C, Yuan C, Yu JT. Peroxide-mediated synthesis of benzimidazo[2,1- a]isoquinoline-6(5 H)-ones via cascade methylation/ethylation and intramolecular cyclization. Org Biomol Chem 2021; 19:619-626. [PMID: 33367428 DOI: 10.1039/d0ob02383c] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A metal-free oxidative radical methylation/arylation of 2-arylbenzoimidazoles with DTBP as the oxidant and methyl radical source was developed. The reaction proceeds through a sequential methyl radical addition/cyclization pathway and affords a series of methyl functionalized benzimidazo[2,1-a]isoquinoline-6(5H)-ones in moderate to good yields. Besides, the ethylation/arylation of 2-arylbenzoimidazoles was also achieved with DTAP.
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Affiliation(s)
- Changduo Pan
- School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Cheng Yuan
- School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
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36
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Luo Z, Li R, Zhu T, Liu C, Feng H, Aboagye Nartey K, Liu Q, Xu X. Iron‐Catalyzed Oxidative Decabonylation/Radical Cyclization of Aliphatic Aldehydes with Biphenyl Isocyanides: A New Pathway For the Synthesis of 6‐Alkylphenanthridines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zaigang Luo
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Rui Li
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Tao Zhu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Chen‐Fu Liu
- School of Pharmaceutical Science Gannan Medical University Ganzhou 341000 P. R. China
| | - Haoran Feng
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Kojo Aboagye Nartey
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Qiannan Liu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
| | - Xuemei Xu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines College of Chemical Engineering AnHui University of Science and Technology Huainan 232001 P. R. China
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37
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Wang B, Zou L, Wang L, Sun M, Li P. Visible-light-induced photoredox-catalyzed synthesis of benzimidazo[2,1-a]iso-quinoline-6(5H)-ones. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.08.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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38
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Sun K, Li G, Guo S, Zhang Z, Zhang G. Copper-catalyzed radical cascade cyclization for synthesis of CF 3-containing tetracyclic benzimidazo[2,1- a]iso-quinolin-6(5 H)-ones. Org Biomol Chem 2021; 19:375-378. [PMID: 33351022 DOI: 10.1039/d0ob02210a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Here, a general copper-catalyzed radical cascade carbocyclization reaction with 2-arylbenzoimidazoles and a Togni reagent was realized. Structurally diverse CF3-containing tetracyclic core benzimidazo[2,1-a]isoquinoline-6(5H)-ones were obtained in moderate to good yields. The wide substrate scope, good functional group tolerance, and ease of scale-up of this method are expected to promote its potential applications in pharmacy and biotechnology.
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Affiliation(s)
- Kai Sun
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China. and School of Chemistry and Chemical Engineering, YanTai University, Yantai, 264005, Shandong, P. R. China
| | - Guofeng Li
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
| | - Sa Guo
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
| | - Zhiguo Zhang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
| | - Guisheng Zhang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
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39
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He Y, Yang H, Gao D, Ma J, Shao Y, An G, Li G. Visible Light-Mediated Metal-Free Decarboxylative Deuteration of Carboxylic Acid. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202111014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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40
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Zhao F, Guo S, Zhang Y, Sun T, Yang B, Ye Y, Sun K. Silver-catalyzed decarboxylative radical relay difluoroalkylation–carbocyclization: convenient access to CF 2-containing quinolinones. Org Chem Front 2021. [DOI: 10.1039/d1qo01425k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical Ag-catalyzed formal decarboxylation and radical difluoroalkylation–carbocyclization–hydrolysis route is established to construct a series of structurally diverse CF2-containing N-heterocycles.
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Affiliation(s)
- Feng Zhao
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Sa Guo
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Ting Sun
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Bing Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yong Ye
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
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41
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Wang X, Lei J, Li G, Meng J, Li C, Li J, Sun K. Synthetic methods for compounds containing fluoro-lactam units. Org Biomol Chem 2020; 18:9762-9774. [PMID: 33237116 DOI: 10.1039/d0ob02168g] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
In recent years, considerable attention has been devoted to the exploration of novel synthetic methods for fluoro-lactams due to their significant biological and pharmaceutical activities. This review summarizes recently established strategies for synthesizing fluorine-substituted lactams, including fluoro-β-lactams, fluoro-γ-lactams, and fluoro-δ-lactams. Additionally, the reaction scopes, limitations, and mechanisms are discussed.
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Affiliation(s)
- Xin Wang
- School of Chemistry and Chemical Engineering, YanTai University, Yantai, 264005, Shandong, P. R. China.
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42
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Wang X, Zhong Y, Mo Z, Wu S, Xu Y, Tang H, Pan Y. Synthesis of Seleno Oxindoles
via
Electrochemical Cyclization of
N
‐arylacrylamides with Diorganyl Diselenides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001192] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xin‐Yu Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Yuan‐Fang Zhong
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Zu‐Yu Mo
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Shi‐Hong Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Yan‐Li Xu
- Pharmacy School of Guilin Medical University Guilin 541004 People's Republic of China
| | - Hai‐Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Ying‐Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
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43
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Zhu S, Wang B, Li H, Xiao W, Teng F, Shen H, Gui Q, Li Z, Jiang H. Halogenation of Imidazo[1,2‐
α
]pyridines with DXDMH (X=Cl, Br and I) Using DMSO as a Solvent and an Oxidant. ChemistrySelect 2020. [DOI: 10.1002/slct.202003161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sha Zhu
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Binbin Wang
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Huiqin Li
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Wending Xiao
- Hunan Jiudian Pharmaceutical Co. Changsha 410009 People's Republic of China
| | - Fan Teng
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Haicheng Shen
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Qing‐Wen Gui
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Zhouchao Li
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
| | - Hongmei Jiang
- School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 People's Republic of China
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44
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Liu L, Yang DY, He YH, Guan Z. Redox-Neutral Photocatalytic Radical Cascade Cyclization for the Synthesis of CH2CN/CF2COOEt/CF3-Containing Benzo[4,5]imidazo[2,1-a]isoquinolin-6(5H)-One Derivatives. J Org Chem 2020; 85:11892-11901. [DOI: 10.1021/acs.joc.0c01688] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - De-Yong Yang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yan-Hong He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhi Guan
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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45
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Wang X, Wang Q, Xue Y, Sun K, Wu L, Zhang B. An organoselenium-catalyzed N1- and N2-selective aza-Wacker reaction of alkenes with benzotriazoles. Chem Commun (Camb) 2020; 56:4436-4439. [DOI: 10.1039/d0cc01079k] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel and practical organoselenium-catalyzed, N1- and N2-selective controllable aza-Wacker reaction is realized, which provides an easy access to N1- and N2-olefinated benzotriazole derivatives.
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Affiliation(s)
- Xin Wang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
- College of Chemistry and Chemical Engineering
| | - Qinlin Wang
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Yanru Xue
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Kai Sun
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Lanlan Wu
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Bing Zhang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
- College of Chemistry and Chemical Engineering
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46
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Xiao Y, Yi Z, Yu X, Xiao F. Copper-catalyzed synthesis of α-ketoamides using water and dioxygen as the oxygen source. RSC Adv 2020; 10:29114-29118. [PMID: 35521140 PMCID: PMC9055944 DOI: 10.1039/d0ra05921h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 01/22/2023] Open
Abstract
The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This copper-catalyzed reaction is carried out in a tandem manner constituted by the hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation. Isotope labeling and radical capture experiments reveal that the oxygen atom of α-ketone at α-ketoamides derives from O2 and the oxygen atom of amide group originates from H2O. The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This Cu-catalyzed reaction is carried out in a tandem manner constituted by hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation.![]()
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Affiliation(s)
- Yuanyuan Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
| | - Zijuan Yi
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Xianyong Yu
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Fang Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
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