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Hou SY, Yan BC, Sun HD, Puno PT. Recent advances in the application of [2 + 2] cycloaddition in the chemical synthesis of cyclobutane-containing natural products. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:37. [PMID: 38861197 PMCID: PMC11166626 DOI: 10.1007/s13659-024-00457-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 05/24/2024] [Indexed: 06/12/2024]
Abstract
Cyclobutanes are distributed widely in a large class of natural products featuring diverse pharmaceutical activities and intricate structural frameworks. The [2 + 2] cycloaddition is unequivocally the primary and most commonly used method for synthesizing cyclobutanes. In this review, we have summarized the application of the [2 + 2] cycloaddition with different reaction mechanisms in the chemical synthesis of selected cyclobutane-containing natural products over the past decade.
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Affiliation(s)
- Song-Yu Hou
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China
| | - Bing-Chao Yan
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China
| | - Han-Dong Sun
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China
| | - Pema-Tenzin Puno
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China.
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2
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Lu YN, Che C, Zhen G, Chang X, Dong XQ, Wang CJ. Visible-light-enabled stereoselective synthesis of functionalized cyclohexylamine derivatives via [4 + 2] cycloadditions. Chem Sci 2024; 15:6507-6514. [PMID: 38699278 PMCID: PMC11062095 DOI: 10.1039/d4sc00667d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/26/2024] [Indexed: 05/05/2024] Open
Abstract
An unprecedented intermolecular [4 + 2] cycloaddition of benzocyclobutylamines with α-substituted vinylketones, enabled by photoredox catalysis, has been developed. The current method enables facile access to highly functionalized cyclohexylamine derivatives that were otherwise inaccessible, in moderate to good yields with excellent diastereoselectivities. This protocol has some excellent features, such as full atom economy, good functional-group compatibility, mild reaction conditions, and an overall redox-neutral process. Additionally, an asymmetric version of this cycloaddition was preliminarily investigated via the incorporation of a chiral phosphoric acid (CPA), and moderate to good enantioselectivity could be effectively realized with excellent diastereoselectivity. Synthetic applications were demonstrated via a scale-up experiment and elaborations to access amino alcohol and cyclobutene derivatives. Based on the results of control experiments, a reasonable reaction mechanism was proposed to elucidate the reaction pathway.
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Affiliation(s)
- Yi-Nan Lu
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
| | - Chao Che
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
| | - Guangjin Zhen
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
| | - Xin Chang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry Shanghai 230021 China
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3
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Lin SL, Chen YH, Liu HH, Xiang SH, Tan B. Enantioselective Synthesis of Chiral Cyclobutenes Enabled by Brønsted Acid-Catalyzed Isomerization of BCBs. J Am Chem Soc 2023; 145:21152-21158. [PMID: 37732875 DOI: 10.1021/jacs.3c06525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Chiral cyclobutene units are commonly found in natural products and biologically active molecules. Transition-metal-catalysis has been extensively used in asymmetric synthesis of such structures, while organocatalytic approaches remain elusive. In this study, bicyclo[1.1.0]butanes are involved in enantioselective transformation for the first time to offer a highly efficient route toward cyclobutenes with good regio- and enantiocontrol. The utilization of N-triflyl phosphoramide as a chiral Brønsted acid promoter enables this isomerization process to proceed under mild conditions with low catalyst loading as well as good functional group compatibility. The resulting chiral cyclobutenes could serve as platform molecules for downstream manipulations with excellent reservation of stereochemical integrity, demonstrating the synthetic practicality of the developed method. Control experiments have also been performed to verify the formation of a key carbocation intermediate at the benzylic position.
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Affiliation(s)
- Si-Li Lin
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ye-Hui Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Huan-Huan Liu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Tan
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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4
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He Y, Wang H, Yang Y, Yan H. Visible light-catalyzed intermolecular [2+2] cycloaddition of 1,2-dihydropyridines: A combined experimental and DFT study. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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5
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Anti-Markovnikov ring-opening of sulfonium salts with alkynes by visible light/copper catalysis. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1373-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Zhai YL, Zhou H, Liu QQ, Leng BR, Zhang Z, Li JZ, Wang DC, Zhu YL. Photocatalytic Markovnikov-type addition and cyclization of terminal alkynes leading to 4-sulfonyl quinoline-2(1 H)-ones. Chem Commun (Camb) 2022; 58:5112-5115. [PMID: 35377376 DOI: 10.1039/d2cc01169g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and expedient photocatalytic protocol for the construction of quinolin-2(1H)-ones via Markovnikov-type sulfonylation/6-endo-trig cyclization/selective C(O)-CF3 bond cleavage starting from N-alkyl-N-(2-ethynylphenyl)-2,2,2-trifluoroacetamides and sulfinic acids has been developed. It is as an unprecedented protocol for the preparation of 4-sulfonylquinoline-2(1H)-ones with high efficiency, mild reaction conditions, acceptable yields and a wide range of substrates.
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Affiliation(s)
- Yu-Lin Zhai
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China.
| | - Hui Zhou
- Institute of Materia Medica, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Qing-Quan Liu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China.
| | - Bo-Rong Leng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China.
| | - Zixian Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China.
| | - Jia-Zhuo Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China.
| | - De-Cai Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China. .,Institute of Materia Medica, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yi-Long Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China. .,Institute of Materia Medica, Nanjing Tech University, Nanjing 211816, P. R. China
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7
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Dai L, Zhu Q, Zeng J, Liu Y, Zhong G, Han X, Zeng X. Asymmetric synthesis of chiral imidazolidines by merging copper and visible light-induced photoredox catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00303a] [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 visible light induced copper catalyzed synthesis of decarboxylative radical coupling/cyclization reaction for the synthesis of chiral imidazolidines in high yields and enantioselectivities was reported.
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Affiliation(s)
- Linlong Dai
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Qiaohong Zhu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Jie Zeng
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuheng Liu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Guofu Zhong
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiaoyu Han
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, China
| | - Xiaofei Zeng
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
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8
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Opačak S, Perić B, Gojšić T, Čikoš A, Vikić-Topić D, Kirin SI. Tandem amide coupling and hydroamination: unexpected benzotriazole oxide addition to the propiolic acid triple bond. NEW J CHEM 2022. [DOI: 10.1039/d2nj02587f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unexpected tandem reaction consisting of amide coupling and hydroamination occurring with common triazole coupling reagents.
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Affiliation(s)
- Saša Opačak
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Berislav Perić
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Tomislav Gojšić
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Ana Čikoš
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Dražen Vikić-Topić
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
- Department of Natural and Health Studies, Juraj Dobrila University of Pula, Zagrebačka 30, HR-52100 Pula, Croatia
| | - Srećko I. Kirin
- Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
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9
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Kaur S, Luciano DP, Fan X, Zhao G, Messier S, Walker MM, Zhang Q, Wang T. Radical functionalization of thioglycosides in aqueous medium. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153499] [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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Ratovelomanana-Vidal V, Matton P, Huvelle S, Haddad M, Phansavath P. Recent Progress in Metal-Catalyzed [2+2+2] Cycloaddition Reactions. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1719831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractMetal-catalyzed [2+2+2] cycloaddition is a powerful tool that allows rapid construction of functionalized 6-membered carbo- and heterocycles in a single step through an atom-economical process with high functional group tolerance. The reaction is usually regio- and chemoselective although selectivity issues can still be challenging for intermolecular reactions involving the cross-[2+2+2] cycloaddition of two or three different alkynes and various strategies have been developed to attain high selectivities. Furthermore, enantioselective [2+2+2] cycloaddition is an efficient means to create central, axial, and planar chirality and a variety of chiral organometallic complexes can be used for asymmetric transition-metal-catalyzed inter- and intramolecular reactions. This review summarizes the recent advances in the field of [2+2+2] cycloaddition.1 Introduction2 Formation of Carbocycles2.1 Intermolecular Reactions2.1.1 Cyclotrimerization of Alkynes2.1.2 [2+2+2] Cycloaddition of Two Different Alkynes2.1.3 [2+2+2] Cycloaddition of Alkynes/Alkenes with Alkenes/Enamides2.2 Partially Intramolecular [2+2+2] Cycloaddition Reactions2.2.1 Rhodium-Catalyzed [2+2+2] Cycloaddition2.2.2 Molybdenum-Catalyzed [2+2+2] Cycloaddition2.2.3 Cobalt-Catalyzed [2+2+2] Cycloaddition2.2.4 Ruthenium-Catalyzed [2+2+2] Cycloaddition2.2.5 Other Metal-Catalyzed [2+2+2] Cycloaddition2.3 Totally Intramolecular [2+2+2] Cycloaddition Reactions3 Formation of Heterocycles3.1 Cycloaddition of Alkynes with Nitriles3.2 Cycloaddition of 1,6-Diynes with Cyanamides3.3 Cycloaddition of 1,6-Diynes with Selenocyanates3.4 Cycloaddition of Imines with Allenes or Alkenes3.5 Cycloaddition of (Thio)Cyanates and Isocyanates3.6 Cycloaddition of 1,3,5-Triazines with Allenes3.7 Cycloaddition of Aldehydes with Enynes or Allenes/Alkenes3.8 Totally Intramolecular [2+2+2] Cycloaddition Reactions4 Conclusion
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11
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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.
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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.
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12
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Liu Z, Zhong S, Ji X, Deng GJ, Huang H. Hydroarylation of Activated Alkenes Enabled by Proton-Coupled Electron Transfer. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00649] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhaosheng Liu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shuai Zhong
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xiaochen Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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13
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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.
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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
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14
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Chen Y, Ni N, Cheng D, Xu X. The coupling of alkylboronic acids with α-(trifluoromethyl)styrenes by Lewis base/photoredox dual catalysis. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152425] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Yang Y, Xu CH, Xiong ZQ, Li JH. Visible light photoredox alkylazidation of alkenes with sodium azide and heteroarenium salts: entry to azido-containing 1,4-dihydropyridines. Chem Commun (Camb) 2020; 56:9549-9552. [PMID: 32691800 DOI: 10.1039/d0cc03235b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A three-component alkene alkylazidation using sodium azide as the azido resource and heteroarenium salts as functionalized alkyl reagents for producing highly valuable 2-azido-1-(1,4-dihydropyridin-4-yl)-ethanes is described. This reaction allows the incorporation of both an azido group and a 1,4-dihydropyridin-4-yl group across C[double bond, length as m-dash]C bonds to construct two new bonds in a single reaction step, and represents a practical and mechanistically distinct alternative that harnesses an electrophilic heteroarenium ion to accomplish the alkene difunctionalization reaction.
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Affiliation(s)
- Yuan Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Chong-Hui Xu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Zhi-Qiang Xiong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
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16
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Transition-metal-free synthesis of 1,4-benzoxazepines via [4+3]-cycloaddition of para-quinone methides with azaoxyallyl cations. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9832-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Wang Y, Lin W, Zou J, Yu W, Liu X. Preparation of Oxindoles via Visible‐Light‐Induced Amination/Cyclization of Arylacrylamides with Alkyl Amines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000609] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yu‐Zhao Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Wu‐Jie Lin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Jian‐Yu Zou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
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18
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Tanaka K, Iwama Y, Kishimoto M, Ohtsuka N, Hoshino Y, Honda K. Redox Potential Controlled Selective Oxidation of Styrenes for Regio- and Stereoselective Crossed Intermolecular [2 + 2] Cycloaddition via Organophotoredox Catalysis. Org Lett 2020; 22:5207-5211. [PMID: 32525321 DOI: 10.1021/acs.orglett.0c01852] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A redox potential controlled intermolecular [2 + 2] cross-cycloaddition has been developed in the presence of a thioxanthylium photoredox catalyst. Electron-rich styrenes such as β-bromostyrene (Ep/2 = +1.61 V vs SCE) were selectively oxidized by a thioxanthylium photoredox catalyst (E1/2 (C*/C•-) = +1.76 V vs SCE) to styryl radical cations and reacted with styrene (Ep/2 = +1.97 V vs SCE) to furnish polysubstituted cyclobutanes in high yields. The present reaction can be successfully applied to intermolecular [2 + 2] cross-cycloaddition of β-halogenostyrenes, which cannot be effectively achieved by the hitherto reported representative organophotoredox catalysts.
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Affiliation(s)
- Kenta Tanaka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yoshinori Iwama
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Mami Kishimoto
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Naoya Ohtsuka
- Institute for Molecular Science, Okazaki, Aichi 444-8787, Japan.,SOKENDAI, Okazaki, Aichi 444-8787, Japan
| | - Yujiro Hoshino
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kiyoshi Honda
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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19
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Chen M, Wei Y, Shi M. Cascade cyclization reactions of alkylidenecyclopropanes for the construction of polycyclic lactams and lactones by visible light photoredox catalysis. Org Chem Front 2020. [DOI: 10.1039/c9qo01360a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A facile method for the synthesis of seven- and eight-membered ring-containing polycyclic lactams and lactones by visible light photocatalysis has been developed.
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Affiliation(s)
- Mintao Chen
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
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20
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Zhang T, Luo M, Teng F, Li Y, Hu M, Li J. Photoredox Alkylarylation of
N
‐Benzyl‐
N
‐(2‐ethynylaryl)‐Amides with α‐Bromoalkyl Esters: Access to Dibenzazepines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900776] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ting‐Ting Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Mu‐Jia Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and ChemometricsHunan University Changsha 410082 People's Republic of China
| | - Fan Teng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Ming Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and ChemometricsHunan University Changsha 410082 People's Republic of China
- State Key Laboratory of Applied Organic ChemistryLanzhou University Lanzhou 730000 People's Republic of China
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21
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Tanaka K, Omata D, Asada Y, Hoshino Y, Honda K. Organophotoredox-Catalyzed Intermolecular Oxa-[4+2] Cycloaddition Reactions. J Org Chem 2019; 84:10669-10678. [PMID: 31322873 DOI: 10.1021/acs.joc.9b01156] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An intermolecular oxa-[4+2] cycloaddition reaction promoted by a thioxanthylium photoredox catalyst under irradiation with green light has been developed. The reaction of ortho-quinone methides with styrenes smoothly affords the desired cycloadducts. Especially styrenes bearing electron-donating groups are efficiently transformed in this reaction. This method represents a sustainable way to carry out oxa-[4+2] cycloaddition reactions using only a catalytic amount of a photocatalyst and visible light.
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Affiliation(s)
- Kenta Tanaka
- Graduate School of Environment and Information Sciences , Yokohama National University , Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
| | - Daichi Omata
- Graduate School of Environment and Information Sciences , Yokohama National University , Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
| | - Yosuke Asada
- Graduate School of Environment and Information Sciences , Yokohama National University , Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
| | - Yujiro Hoshino
- Graduate School of Environment and Information Sciences , Yokohama National University , Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
| | - Kiyoshi Honda
- Graduate School of Environment and Information Sciences , Yokohama National University , Tokiwadai , Hodogaya-ku, Yokohama 240-8501 , Japan
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22
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Zhou F, Cheng Y, Liu XP, Chen JR, Xiao WJ. A visible light photoredox catalyzed carbon radical-mediated generation of ortho-quinone methides for 2,3-dihydrobenzofuran synthesis. Chem Commun (Camb) 2019; 55:3117-3120. [DOI: 10.1039/c9cc00727j] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A visible light photoredox-catalyzed carbon radical-mediated strategy for in situ formation of ortho-quinone methides from 2-vinyl phenols towards 2,3-dihydrobenzofuran synthesis is described.
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Affiliation(s)
- Fan Zhou
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Ying Cheng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Xiao-Peng Liu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Jia-Rong Chen
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
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23
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Li Q, Yin Y, Li Y, Zhang J, Huang M, Kim JK, Wu Y. A simple approach to indeno-coumarins via visible-light-induced cyclization of aryl alkynoates with diethyl bromomalonate. Org Chem Front 2019. [DOI: 10.1039/c9qo00795d] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light-induced triple-domino cyclization between aryl alkynoates and diethyl bromomalonate was developed for the synthesis of indeno-coumarins.
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Affiliation(s)
- 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
| | - 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
| | - 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
| | - Jianye Zhang
- 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
| | - 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
| | - 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
| | - 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
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24
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Kaur S, Zhao G, Busch E, Wang T. Metal-free photocatalytic thiol–ene/thiol–yne reactions. Org Biomol Chem 2019; 17:1955-1961. [DOI: 10.1039/c8ob02313a] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a metal-free photocatalytic approach to the synthesis of glycoconjugates, highlighting the mild nature of the reaction conditions.
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Affiliation(s)
- Sarbjeet Kaur
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Gaoyuan Zhao
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Evan Busch
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Ting Wang
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
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25
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Visible-light-induced 1,2-alkylarylation of alkenes with a-C(sp3)–H bonds of acetonitriles involving neophyl rearrangement under transition-metal-free conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Wang J, Li B, Liu LC, Jiang C, He T, He W. Metal-free visible-light-mediated aerobic oxidation of silanes to silanols. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9289-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Zhao Y, Lv Y, Xia W. Synthesis of Cyclic Compounds via Photoinduced Radical Cyclization Cascade of C=C bonds. CHEM REC 2018; 19:424-439. [DOI: 10.1002/tcr.201800050] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/29/2018] [Indexed: 01/24/2023]
Affiliation(s)
- Yating Zhao
- College of Chemical and Material EngineeringQuzhou University Quzhou Zhejiang 324000 China
- State Key Lab of Urban Water Resource and EnvironmentSchool of ScienceHarbin Institute of Technology (Shenzhen) Shenzhen Guangzhou 518055 China
| | - Yanwen Lv
- College of Chemical and Material EngineeringQuzhou University Quzhou Zhejiang 324000 China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and EnvironmentSchool of ScienceHarbin Institute of Technology (Shenzhen) Shenzhen Guangzhou 518055 China
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28
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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]
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29
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Wang CY, Pan GH, Chen F, Li JH. Oxidative cyclization of 2-allenyl-1,1'-biphenyls with α-carbonyl alkyl bromides: facile access to functionalized phenanthrenes. Chem Commun (Camb) 2018; 53:4730-4733. [PMID: 28405640 DOI: 10.1039/c7cc00483d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new copper-facilitated oxidative cyclization of 2-allenyl-1,1'-biphenyls with α-carbonyl alkyl bromides for producing functionalized phenanthrenes is presented, which represents the first allene 2,3-dicarbofunctionalization triggered by oxidative radical-medicated C3-addition of the terminal allene moiety and C-Br/C-H functionalization.
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Affiliation(s)
- Cheng-Yong Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
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30
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Liu Y, Wang QL, Zhou CS, Xiong BQ, Zhang PL, Yang CA, Tang KW. Visible-Light-Mediated Ipso-Carboacylation of Alkynes: Synthesis of 3-Acylspiro[4,5]trienones from N-(p-Methoxyaryl)propiolamides and Acyl Chlorides. J Org Chem 2018; 83:2210-2218. [PMID: 29341610 DOI: 10.1021/acs.joc.7b03104] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel visible-light-mediated ipso-carboacylation of N-(p-methoxyaryl)propiolamides with acyl chloride has been established for the synthesis of diverse 3-acylspiro[4,5]trienones with high selectivity and efficiency. This method represents a new difunctionalization of alkynes through cross coupling of the acyl chloride C-Cl bonds with an ipso-aromatic carbon by simultaneously forming two new carbon-carbon bonds and one carbon-oxygen double bond.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology , Yueyang 414006, China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology , Yueyang 414006, China
| | - Cong-Shan Zhou
- 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
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology , Yueyang 414006, China
| | - Chang-An Yang
- 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
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31
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Wu K, Du Y, Wei Z, Wang T. Synthesis of functionalized pyrroloindolinesviaa visible-light-induced radical cascade reaction: rapid synthesis of (±)-flustraminol B. Chem Commun (Camb) 2018; 54:7443-7446. [DOI: 10.1039/c8cc03575j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report a visible-light-induced synthesis of functionalized pyrroloindolinesviaa radical cascade reaction,highlighting a mild nature of the reaction condition.
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Affiliation(s)
- Kui Wu
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Yuliu Du
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Zheng Wei
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Ting Wang
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
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32
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Liu M, Li Y, Yu L, Xu Q, Jiang X. Visible light-promoted, iodine-catalyzed selenoalkoxylation of olefins with diselenides and alcohols in the presence of hydrogen peroxide/air oxidant: an efficient access to α-alkoxyl selenides. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9158-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Liu Y, Song RJ, Luo S, Li JH. Visible-Light-Promoted Tandem Annulation of N-(o-Ethynylaryl)acrylamides with CH2Cl2. Org Lett 2017; 20:212-215. [DOI: 10.1021/acs.orglett.7b03561] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Liu
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- Department
of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ren-Jie Song
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shenglian Luo
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- Department
of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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34
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Dong W, Yuan Y, Hu B, Gao X, Gao H, Xie X, Zhang Z. Combining Visible-Light-Photoredox and Lewis Acid Catalysis for the Synthesis of Indolizino[1,2-b]quinolin-9(11H)-ones and Irinotecan Precursor. Org Lett 2017; 20:80-83. [DOI: 10.1021/acs.orglett.7b03395] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wuheng Dong
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yao Yuan
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Bei Hu
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoshuang Gao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huang Gao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaomin Xie
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhaoguo Zhang
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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35
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Li Y, Li JX, Ouyang XH, Wang QA, Li JH. Manganese-Catalyzed Intermolecular Oxidative Annulation of Alkynes with γ-Vinyl Aldehydes: An Entry to Bridged Carbocyclic Systems. Org Lett 2017; 19:6172-6175. [DOI: 10.1021/acs.orglett.7b03086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yang Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Xia Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qiu-An Wang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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36
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Xin JR, Guo JT, Vigliaturo D, He YH, Guan Z. Metal-free visible light driven synthesis of tetrahydroquinoline derivatives utilizing Rose Bengal. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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37
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Affiliation(s)
- Yuhua Liu
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou Guangdong 510006 China
| | - Wen Dong
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou Guangdong 510006 China
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38
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Zhao MN, Zhang MN, Ren ZH, Wang YY, Guan ZH. Base-mediated formal [3+2] cycloaddition of β,γ-alkenyl esters and p-TsN 3 for the synthesis of pyrazoles. Sci Bull (Beijing) 2017; 62:493-496. [PMID: 36659258 DOI: 10.1016/j.scib.2017.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/18/2017] [Accepted: 02/24/2017] [Indexed: 01/21/2023]
Abstract
A novel 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-mediated formal cycloaddition of β,γ-alkenyl esters with p-tolylsulfonylazide (p-TsN3) for the synthesis of 3,5-disubstituted pyrazoles has been developed. The reaction proceeded through diazotization of β,γ-alkenyl esters sequential with thermodynamic cyclization. p-Tolylsulfonylazide played a role as a source of two-nitrogen synthons. The reaction employs readily available starting materials, tolerates a wide range of functional groups, and proceeds under mild conditions.
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Affiliation(s)
- Mi-Na Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Mei-Na Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China.
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39
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40
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Affiliation(s)
- Renjie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang Jiangxi 330063 China
| | - Yexiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang Jiangxi 330063 China
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41
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Stevenson SM, Higgins RF, Shores MP, Ferreira EM. Chromium photocatalysis: accessing structural complements to Diels-Alder adducts with electron-deficient dienophiles. Chem Sci 2017; 8:654-660. [PMID: 28451213 PMCID: PMC5297334 DOI: 10.1039/c6sc03303b] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/11/2016] [Indexed: 12/29/2022] Open
Abstract
A chromium-catalyzed, visible light-activated net [4 + 2] cycloaddition between dienes and electron-deficient alkenes is described. Gathered evidence, via control experiments, isolated intermediates, and measured redox potentials, points to several converging reaction pathways that afford the cyclohexene adducts, including a photochemical [2 + 2] cycloaddition/vinylcyclobutane rearrangement cascade and a substrate excitation/oxidation sequence to a radical cation intermediate. Notably, the accompanying mechanistic stipulations result in a process that yields regioisomeric compounds from those generated by traditional Diels-Alder cycloadditions.
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Affiliation(s)
- Susan M Stevenson
- Department of Chemistry , University of Georgia , Athens , GA 30602 , USA .
| | - Robert F Higgins
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523 , USA
| | - Matthew P Shores
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523 , USA
| | - Eric M Ferreira
- Department of Chemistry , University of Georgia , Athens , GA 30602 , USA .
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42
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Hu M, Zou HX, Song RJ, Xiang JN, Li JH. Copper-Catalyzed C–H Oxidative Radical Functionalization and Annulation of Aniline-Linked 1,7-Enynes: Evidence for a 1,5-Hydride Shift Mechanism. Org Lett 2016; 18:6460-6463. [DOI: 10.1021/acs.orglett.6b03352] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ming Hu
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi
Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Hua-Xu Zou
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi
Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi
Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jian-Nan Xiang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi
Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi
Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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Zhao Y, Chen JR, Xiao WJ. Synthesis of Hydrazide-Containing Chroman-2-ones and Dihydroquinolin-2-ones via Photocatalytic Radical Cascade Reaction of Aroylhydrozones. Org Lett 2016; 18:6304-6307. [DOI: 10.1021/acs.orglett.6b03174] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yu Zhao
- CCNU-uOttawa
Joint Research Centre, Key Laboratory of Pesticides and Chemical Biology,
Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China
| | - Jia-Rong Chen
- CCNU-uOttawa
Joint Research Centre, Key Laboratory of Pesticides and Chemical Biology,
Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China
| | - Wen-Jing Xiao
- CCNU-uOttawa
Joint Research Centre, Key Laboratory of Pesticides and Chemical Biology,
Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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Hartman T, Cibulka R. Photocatalytic Systems with Flavinium Salts: From Photolyase Models to Synthetic Tool for Cyclobutane Ring Opening. Org Lett 2016; 18:3710-3. [DOI: 10.1021/acs.orglett.6b01743] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomáš Hartman
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Radek Cibulka
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
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