1
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Zeng L, Yang Q, Wang J, Wang X, Wang P, Wang S, Lv S, Muhammad S, Liu Y, Yi H, Lei A. Programmed alternating current optimization of Cu-catalyzed C-H bond transformations. Science 2024; 385:216-223. [PMID: 38991063 DOI: 10.1126/science.ado0875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/22/2024] [Indexed: 07/13/2024]
Abstract
Direct current (DC) electrosynthesis, which has undergone optimization over the past century, plays a pivotal role in a variety of industrial processes. Alternating current (AC) electrosynthesis, characterized by polarity reversal and periodic fluctuations, may be advantageous for multiple chemical reactions, but apparatus, principles, and application scenarios remain underdeveloped. In this work, we introduce a protocol for programmed AC (pAC) electrosynthesis that systematically adjusts currents, frequencies, and duty ratios. The application of representative pAC waveforms facilitates copper-catalyzed carbon-hydrogen bond cleavage in cross-coupling and difunctionalization reactions that exhibit suboptimal performance under DC and chemical oxidation conditions. Moreover, observing catalyst dynamic variation under diverse waveform applications provides mechanistic insight.
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Affiliation(s)
- Li Zeng
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Qinghong Yang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Jianxing Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Xin Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Pengjie Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Shengchun Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Shide Lv
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Shabbir Muhammad
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yichang Liu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
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2
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Cheng Q, Bhattacharya D, Haring M, Cao H, Mück-Lichtenfeld C, Studer A. Skeletal editing of pyridines through atom-pair swap from CN to CC. Nat Chem 2024; 16:741-748. [PMID: 38238464 PMCID: PMC11087273 DOI: 10.1038/s41557-023-01428-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/15/2023] [Indexed: 05/12/2024]
Abstract
Skeletal editing is a straightforward synthetic strategy for precise substitution or rearrangement of atoms in core ring structures of complex molecules; it enables quick diversification of compounds that is not possible by applying peripheral editing strategies. Previously reported skeletal editing of common arenes mainly relies on carbene- or nitrene-type insertion reactions or rearrangements. Although powerful, efficient and applicable to late-stage heteroarene core structure modification, these strategies cannot be used for skeletal editing of pyridines. Here we report the direct skeletal editing of pyridines through atom-pair swap from CN to CC to generate benzenes and naphthalenes in a modular fashion. Specifically, we use sequential dearomatization, cycloaddition and rearomatizing retrocycloaddition reactions in a one-pot sequence to transform the parent pyridines into benzenes and naphthalenes bearing diversified substituents at specific sites, as defined by the cycloaddition reaction components. Applications to late-stage skeletal diversification of pyridine cores in several drugs are demonstrated.
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Affiliation(s)
- Qiang Cheng
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | | | - Malte Haring
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
| | - Hui Cao
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
| | | | - Armido Studer
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany.
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3
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Okitsu T, Shinohara Y, Luo H, Hatano M, Yakura T. Dearomative Intramolecular Diels-Alder/Sulfur Extrusion Reaction of Thiophenes with Alkynes Using peri-Substituted Naphthalene as a Tether. Chem Asian J 2024; 19:e202301031. [PMID: 38081784 DOI: 10.1002/asia.202301031] [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: 11/21/2023] [Revised: 12/11/2023] [Indexed: 02/02/2024]
Abstract
Dearomative intramolecular Diels-Alder/sulfur extrusion reaction of thiophenes with alkynes successfully afforded fluoranthenes in moderate to excellent yields. The proximity of both reactive sites fixed at the peri-position of naphthalene would play an important role in the progress of this reaction. Tri(o-tolyl)phosphine effectively suppressed the side reactions as a sulfur scavenger.
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Affiliation(s)
- Takashi Okitsu
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Yoshiki Shinohara
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Haoran Luo
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Manabu Hatano
- Faculty of Pharmaceutical Sciences, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada, Kobe, 658-8558, Japan
| | - Takayuki Yakura
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
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4
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Roy VJ, Chakraborty J, Raha Roy S. Catalytic π-π Interactions Triggered Photoinduced Synthesis of Biaryls. Org Lett 2024; 26:183-187. [PMID: 38169322 DOI: 10.1021/acs.orglett.3c03806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A highly regioselective photocatalytic method to access a variety of biaryl motifs under metal-free conditions has been developed. The organophotocatalyst is involved in π-π stacking interactions with the alkyne species, which promotes this photocatalytic process with thiophene. Mechanistic studies have shed light on these interactions and the overall process. Along with a broad functional-group tolerance and excellent regioselectivity, this protocol has been utilized in the late-stage functionalization of pharmaceuticals and other natural products.
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Affiliation(s)
- Vishal Jyoti Roy
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Janardan Chakraborty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sudipta Raha Roy
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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5
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Liu Q, Liu X, Li Y, Zhou Y, Zhao L, Liang X, Liu H. Construction of Diversified Penta-Spiro-Heterocyclic and Fused-Heterocyclic Frameworks with Potent Antitumor Activity. Chemistry 2023; 29:e202301553. [PMID: 37370192 DOI: 10.1002/chem.202301553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 06/29/2023]
Abstract
Multiple-spiro/fused-heterocyclic frameworks containing indazolone are structurally unique and represent a class of potentially dominant skeletons. In this work, we successfully fulfilled Rh(III)-catalyst mediated substrate- and pH- controlled strategies to construct four novel types of complicated penta-spiro/fused-heterocyclic frameworks via C-H activation/[4+1] and [4+2] annulation cascades. This method had mild reaction conditions, a broad scope of substrates, moderate to good yields, and valuable applications, which could realize for the first time the generation of the novel di-spiro-heterocyclic and multiple fused-heterocyclic products with unique structures. More importantly, novel spiro[cyclohexane-indazolo[1,2-a]indazole] scaffold constructed by this method exhibited potent antitumor activity against a variety of refractory solid tumors and hematological malignancies in vitro. Overall, our work provided new insights into the construction of complex and diverse multiple spiro/fused-heterocyclic systems and offered novel valuable lead compounds for the discovery of antitumor drugs.
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Affiliation(s)
- Qi Liu
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Xuyi Liu
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
| | - Yazhou Li
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
| | - Yu Zhou
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
| | - Linxiang Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
| | - Xuewu Liang
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
| | - Hong Liu
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai, 201203, China
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, China
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6
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Chan CWT, Law ASY, Yam VWW. A Luminescence Assay in the Red for the Detection of Hydrogen Peroxide and Glucose Based on Metal Coordination Polyelectrolyte-Induced Supramolecular Self-Assembly of Alkynylplatinum(II) Complexes. Chemistry 2023; 29:e202300203. [PMID: 37254458 DOI: 10.1002/chem.202300203] [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: 01/20/2023] [Revised: 05/12/2023] [Accepted: 05/30/2023] [Indexed: 06/01/2023]
Abstract
A new sensing strategy towards hydrogen peroxide based on metal coordination polyelectrolyte-driven self-assembly of alkynylplatinum(II) 2,6-bis(benzimidazol-2'-yl)pyridine (bzimpy) complex was demonstrated. The cationic in situ-generated Ag(I)-thiocholine coordination polyelectrolytes were shown to induce the supramolecular self-assembly of anionic low-energy red-emissive alkynylplatinum(II) bzimpy complexes via non-covalent Pt(II)⋅⋅⋅Pt(II), electrostatic and π-π stacking interactions. The presence of hydrogen peroxide was shown to inhibit the formation of coordination polyelectrolytes and the coordination polyelectrolyte-induced self-assembly of platinum(II) complexes. The weakening of Pt(II)⋅⋅⋅Pt(II), electrostatic and π-π stacking interactions was supported by UV-vis absorption, emission, and resonance light scattering (RLS) studies. The present assay was also applied to probe glucose indirectly based on the enzymatic reaction of glucose oxidase on the substrate. Operating in a label-free manner, together with the low-energy red emission and large Stokes shift of alkynylplatinum(II) complexes, these features render the proposed design attractive for biological applications.
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Affiliation(s)
- Calford Wai-Ting Chan
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Angela Sin-Yee Law
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
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7
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Wang H, Shao H, Das A, Dutta S, Chan HT, Daniliuc C, Houk KN, Glorius F. Dearomative ring expansion of thiophenes by bicyclobutane insertion. Science 2023; 381:75-81. [PMID: 37410837 DOI: 10.1126/science.adh9737] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/30/2023] [Indexed: 07/08/2023]
Abstract
Skeletal ring enlargement is gaining renewed interest in synthetic chemistry and has recently focused on insertion of one or two atoms. Strategies for heterocyclic expansion through small-ring insertion remain elusive, although they would lead to the efficient formation of bicyclic products. Here, we report a photoinduced dearomative ring enlargement of thiophenes by insertion of bicyclo[1.1.0]butanes to produce eight-membered bicyclic rings under mild conditions. The synthetic value, broad functional-group compatibility, and excellent chemo- and regioselectivity were demonstrated by scope evaluation and product derivatization. Experimental and computational studies point toward a photoredox-induced radical pathway.
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Affiliation(s)
- Huamin Wang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Huiling Shao
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Ankita Das
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Subhabrata Dutta
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - Hok Tsun Chan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Constantin Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster (WWU), 48149 Münster, Germany
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8
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Nickel-Catalyzed Suzuki Coupling of Phenols Enabled by SuFEx of Tosyl Fluoride. Molecules 2023; 28:molecules28020636. [PMID: 36677693 PMCID: PMC9864267 DOI: 10.3390/molecules28020636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
A practical and efficient Suzuki coupling of phenols has been developed by using trans-NiCl(o-Tol)(PCy3)2/2PCy3 as a catalyst in the presence of tosyl fluoride as an activator. The key for the direct use of phenols lies in the compatibility of the nickel catalyst with tosyl fluoride (TsF) and its sulfur(VI) fluoride exchange (SuFEx) with CAr-OH. Water has been found to improve the one-pot process remarkably. The steric and electronic effects and the functional group compatibility of the one-pot Suzuki coupling of phenols appear to be comparable to the conventional one of pre-prepared aryl tosylates. A series of electronically and sterically various biaryls could be obtained in good to excellent yields by using 3-10 mol% loading of the nickel catalyst. The applications of this one-pot procedure in chemoselective derivatization of complex molecules have been demonstrated in 3-phenylation of estradiol and estrone.
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9
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Xie S, Chen W, Liu S, Zong H, Ming B, Zhou G. Facile synthesis and functionalization of fluoranthenes via intramolecular [4 + 2] annulations between thiophenes and alkynes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Luo J, Zeng G, Cao X, Yin B. Visible‐Light‐Induced [2+2+1] Dearomative Cascade Cyclization of Indole/Furan Alkynes to Synthesize Sulfonyl Polycycles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiajun Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
| | - Guohui Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
| | - Xiaohui Cao
- School of Pharmacy Guangdong Pharmaceutical University Guangzhou 510006 People's Republic of China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
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11
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Okuda Y. Organic Synthesis with an Acridinium Photocatalyst. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yasuhiro Okuda
- Department of Applied Chemistry and Biotechnology, Okayama University of Science
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12
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Romashov LV, Kozlov KS, Skorobogatko MK, Kostyukovich AY, Ananikov VP. Atom-economic Approach to the Synthesis of α-(Hetero)aryl-substituted Furan Derivatives from Biomass. Chem Asian J 2022; 17:e202101227. [PMID: 34807522 DOI: 10.1002/asia.202101227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/18/2021] [Indexed: 01/17/2023]
Abstract
An atom-economic ring construction approach to the synthesis of α-(hetero)arylfurans based on renewable furanic platform chemicals has been developed. Corresponding compounds have been prepared in good to excellent yields via [2+2+2] and [4+2] cycloaddition reactions using metal-catalyzed or photoredox protocols. Easily available HMF-based 2-hydroxymethyl-5-ethynylfuran and 2-hydroxymethyl-5-cyanofuran were used as starting materials. A synthetic route with an improved carbon economy factor has been implemented to achieve sustainability aim. The possible application of arylfurans as molecular conductors has been investigated by DFT calculations, which revealed excellent charge transfer properties. As a future perspective, integration of biomass processing strategy into manufacturing of molecular electronics was pointed out to achieve the aim of sustainability.
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Affiliation(s)
- Leonid V Romashov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991, Moscow, Russia
| | - Kirill S Kozlov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1, 119991, Moscow, Russia
| | - Matvey K Skorobogatko
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1, 119991, Moscow, Russia
| | - Alexander Y Kostyukovich
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991, Moscow, Russia
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1, 119991, Moscow, Russia
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13
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Zhu SS, Liu Y, Chen XL, Qu LB, Yu B. Polymerization-Enhanced Photocatalysis for the Functionalization of C(sp3)–H Bonds. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03765] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shan-Shan Zhu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Liu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- Henan International Joint Laboratory of Rare Earth Composite Material, College of Materials Engineering, Henan University of Engineering, Zhengzhou 451191, China
| | - Xiao-Lan Chen
- 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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14
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Mao Z, Huang A, Ma L, Zhang M. Visible light enabled [4+2] annulation reactions for anthracenone-furans from 2,3-dibromonaphthoquinone and phenylbenzofurans. RSC Adv 2021; 11:38235-38238. [PMID: 35498062 PMCID: PMC9044024 DOI: 10.1039/d1ra07314a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/18/2021] [Indexed: 12/20/2022] Open
Abstract
A facile visible light promoted approach to anthracenone-furans from readily available 2,3-dibromonaphthoquinones and phenylbenzofurans via a formal Diels Alder reaction is reported. This reaction involves wavelength-selective agitation of 4CzIPN, energy transfer to quinones, recombination of 1,6-biradicals and elimination to give anthracenone-furans in good to excellent yields in one pot.
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Affiliation(s)
- Zhimei Mao
- School of Chemistry and Chemical Engineering, Guangxi University Nanning Guangxi 530004 China
| | - Aimin Huang
- School of Chemistry and Chemical Engineering, Guangxi University Nanning Guangxi 530004 China
| | - Lin Ma
- School of Chemistry and Chemical Engineering, Guangxi University Nanning Guangxi 530004 China
| | - Min Zhang
- School of Chemistry and Chemical Engineering, Guangxi University Nanning Guangxi 530004 China
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15
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Tarigopula C, Manojveer S, Balamurugan R. Synthesis of Highly Substituted Biaryls by the Construction of a Benzene Ring via In Situ Formed Acetals. J Org Chem 2021; 86:11871-11883. [PMID: 34425048 DOI: 10.1021/acs.joc.1c01277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Herein, we present an interesting method for the construction of a benzene ring using propargylic alcohols and 1,3-dicarbonyls, which involves three new C-C bond formations via cascade alkylation, formylation, annulation, and aromatization to make substituted biaryls. This one-pot Brønsted acid-promoted protocol utilizes the unique reactivity of the acetal formed under the reaction conditions. Alkynyl methyl ketones could be employed instead of 1,3-dicarbonyls as they are converted to 1,3-dicarbonyls by hydration under the reaction conditions.
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16
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Zheng L, Xue H, Zhou B, Luo SP, Jin H, Liu Y. Single Cu(I)-Photosensitizer Enabling Combination of Energy-Transfer and Photoredox Catalysis for the Synthesis of Benzo[ b]fluorenols from 1,6-Enynes. Org Lett 2021; 23:4478-4482. [PMID: 33988383 DOI: 10.1021/acs.orglett.1c01427] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient, mild, and atom-economical synthesis of benzo[b]fluorenols from 1,6-enynes has been developed under photocatalytic conditions. A single P/N heteroleptic Cu(I)-photosensitizer might exhibit both energy-transfer and photoredox catalytic activities in the formation of benzo[b]fluorenols.
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Affiliation(s)
- Limeng Zheng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Han Xue
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Bingwei Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Shu-Ping Luo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Hongwei Jin
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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17
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Zheng B, Li X, Song Y, Meng S, Li Y, Liu Q, Pan L. Visible-Light-Induced Formation of Thiavinyl 1,3-Dipoles: A Metal-Free [3+2] Oxidative Cyclization with Alkynes as Easy Access to Thiophenes. Org Lett 2021; 23:3453-3459. [PMID: 33881879 DOI: 10.1021/acs.orglett.1c00915] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A visible-light-induced [3+2] oxidative cyclization of various alkynes with easily available ketene dithioacetals as the previously unknown thiavinyl 1,3-dipoles in the presence of an acridine photosensitizer is reported. A series of multisubstituted thiophenes were achieved regioselectively in ≤98% yields under very mild metal-free conditions without other additives. This reaction could tolerate a wide range of substrates and achieve good efficiency in large-scale syntheses. The reaction mechanism and their applications are described in detail to reveal the reactivity of the new 1,3-dipoles and the selectivity of the reactions.
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Affiliation(s)
- Baihui Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Xiaotong Li
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yang Song
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Shuyang Meng
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yifei Li
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Ling Pan
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
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18
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An Y, Zhang F, Cai Z, Du G. Direct Assembly of Polysubstituted Benzenes via Base-Catalyzed Benzannulation Reaction of α-Cyano- β-methylalkenyl-(hetero)aryl Ketones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Zhang W, Bu J, Wang L, Li P, Li H. Sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes: an approach toward the carbazole skeleton. Org Chem Front 2021. [DOI: 10.1039/d1qo00739d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A mild sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes has been established for the construction of the carbazole backbone.
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Affiliation(s)
- Wenjie Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Jiahui Bu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
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20
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Cannalire R, Pelliccia S, Sancineto L, Novellino E, Tron GC, Giustiniano M. Visible light photocatalysis in the late-stage functionalization of pharmaceutically relevant compounds. Chem Soc Rev 2020; 50:766-897. [PMID: 33350402 DOI: 10.1039/d0cs00493f] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The late stage functionalization (LSF) of complex biorelevant compounds is a powerful tool to speed up the identification of structure-activity relationships (SARs) and to optimize ADME profiles. To this end, visible-light photocatalysis offers unique opportunities to achieve smooth and clean functionalization of drugs by unlocking site-specific reactivities under generally mild reaction conditions. This review offers a critical assessment of current literature, pointing out the recent developments in the field while emphasizing the expected future progress and potential applications. Along with paragraphs discussing the visible-light photocatalytic synthetic protocols so far available for LSF of drugs and drug candidates, useful and readily accessible synoptic tables of such transformations, divided by functional groups, will be provided, thus enabling a useful, fast, and easy reference to them.
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Affiliation(s)
- Rolando Cannalire
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy.
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21
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Mies T, Ma TK, Barrett AGM. Syntheses of polyfunctional aromatic compounds from non-aromatic precursors. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Wu L, Yu B, Li E. Recent Advances in Organocatalyst‐Mediated Benzannulation Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000608] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lulu Wu
- School of Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Bing Yu
- College of Chemistry Green Catalysis Center Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Er‐Qing Li
- College of Chemistry Green Catalysis Center Zhengzhou University Zhengzhou 450001 People's Republic of China
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23
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Xiong W, Shi F, Cheng R, Zhu B, Wang L, Chen P, Lou H, Wu W, Qi C, Lei M, Jiang H. Palladium-Catalyzed Highly Regioselective Hydrocarboxylation of Alkynes with Carbon Dioxide. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01687] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenfang Xiong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Fuxing Shi
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ruixiang Cheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Baiyao Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lu Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Pengquan Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hongming Lou
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Chaorong Qi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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24
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Ding B, Weng Y, Liu Y, Song C, Yin L, Yuan J, Ren Y, Lei A, Chiang CW. Selective Photoredox Trifluoromethylation of Tryptophan-Containing Peptides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901572] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Ding
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Yue Weng
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
- TLS BL23A; National Synchrotron Radiation Research Center; Hsinchu Science Park Hsinchu Taiwan R. O. C
| | - Yunqing Liu
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Chunlan Song
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Le Yin
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Jiafan Yuan
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Yanrui Ren
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
| | - Chien-Wei Chiang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan Hubei P. R. China
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