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Zhang L, You M, Ban X, Zhao X, Yin Y, Cao S, Jiang Z. Visible light-driven dearomative ring expansion of (aza)arenes to access dihydrofuran-based polycyclic compounds. Chem Sci 2024; 15:8828-8834. [PMID: 38873084 PMCID: PMC11168080 DOI: 10.1039/d4sc00748d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/04/2024] [Indexed: 06/15/2024] Open
Abstract
The dearomative expansion of aromatic rings has long been pursued by chemists due to its potential to provide tractable approaches for synthesizing valuable non-aromatic molecules. To circumvent the conventional use of hazardous and unstable diazo compounds, photochemical synthesis has recently emerged as a promising platform. However, protocols that can effectively handle both arenes and azaarenes remain scarce. Herein, we introduce a generic strategy that efficiently converts β-(aza)aryl-β-substituted enones into biologically significant cycloheptatriene derivatives, including their aza-variants. This method allows for the easy modulation of diverse functional groups on the product and demonstrates a wide substrate scope, evidenced by its excellent tolerance to various drug motifs and good compatibility with five-membered azaarenes undergoing ring expansion. Moreover, DFT calculations of plausible mechanisms have motivated the implementation of an important cascade diradical recombination strategy for 1,3-dienones, thus facilitating the synthesis of valuable 2-oxabicyclo[3.1.0]hex-3-ene derivatives.
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Affiliation(s)
- Linghong Zhang
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University Kaifeng Henan P. R. China 475004
| | - Mengdi You
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University Xinxiang Henan P. R. China 453007
| | - Xu Ban
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University Xinxiang Henan P. R. China 453007
| | - Xiaowei Zhao
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University Kaifeng Henan P. R. China 475004
| | - Yanli Yin
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University Xinxiang Henan P. R. China 453007
| | - Shanshan Cao
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University Xinxiang Henan P. R. China 453007
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University Kaifeng Henan P. R. China 475004
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University Xinxiang Henan P. R. China 453007
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2
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Guan F, Zhou R, Ren X, Guo Z, Wang C, Zhou CY. Asymmetric dearomative cyclopropanation of naphthalenes to construct polycyclic compounds. Chem Sci 2022; 13:13015-13019. [PMID: 36425492 PMCID: PMC9669881 DOI: 10.1039/d2sc04509e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/11/2022] [Indexed: 11/08/2023] Open
Abstract
Catalytic asymmetric dearomatization (CADA) reactions is an important synthetic method for constructing enantioenriched complex cyclic systems from simple aromatic feedstocks. However, the CADA reactions of nonactivated arenes, such as naphthalenes and benzenes, have been far less explored than those of electronically activated arenes, such as phenols, naphthols and indoles. Herein, we disclose an asymmetric dearomative cyclopropanation of naphthalenes for the rapid construction of polycyclic compounds. With chiral dirhodium carboxylate as a catalyst, the dearomative cyclopropanation proceeded smoothly under mild conditions and afforded benzonorcaradiene-containing tetracycles in good yield and high enantioselectivity (up to 99% ee). Three stereogenic centers, including two all-carbon quaternary centers, were created in the dearomatization reaction. Moreover, a variety of functional groups are well-tolerated in the reaction. The products could be readily converted into other complex polycycles while maintaining the high ee value.
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Affiliation(s)
- Fujun Guan
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University Guangzhou 510632 People's Republic of China
| | - Rong Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University Guangzhou 510632 People's Republic of China
| | - Xiaoyu Ren
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology Shanxi 030024 People's Republic of China
| | - Zhen Guo
- College of Materials Science & Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology Shanxi 030024 People's Republic of China
| | - Chengming Wang
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University Guangzhou 510632 People's Republic of China
| | - Cong-Ying Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University Guangzhou 510632 People's Republic of China
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3
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Guha S, Yussif El‐Deeb I, Yadav S, Das R, Dutta Dubey K, Baruah M, Ludovic G, Sen S. Capturing a Pentacyclic Fragment‐Based Library Derived from Perophoramidine: Their Design, Synthesis and Evaluation as Anticancer Compounds by DNA Double‐Strand Breaks (DSB) and PARP‐1 Inhibition. Chemistry 2022; 28:e202202405. [DOI: 10.1002/chem.202202405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Souvik Guha
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | | | - Shalini Yadav
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | - Ranajit Das
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | | | - Mousumi Baruah
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | - Gremaud Ludovic
- School of Engineering and Architecture Institute of Chemical Technology at University of Applied Sciences and Arts of Western Mumbai, Switzerland 1700 Fribourg Switzerland
| | - Subhabrata Sen
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
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Saunthwal RK, Mortimer J, Orr-Ewing AJ, Clayden J. Enantioselective one-carbon expansion of aromatic rings by simultaneous formation and chromoselective irradiation of a transient coloured enolate. Chem Sci 2022; 13:2079-2085. [PMID: 35308841 PMCID: PMC8848985 DOI: 10.1039/d1sc06684f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/25/2022] [Indexed: 12/14/2022] Open
Abstract
Enantioenriched seven-membered carbocycles are motifs in many molecules of structural and biological interest. We report a simple, practical, transition metal-free and mechanistically unusual method for the enantioselective synthesis of substituted cycloheptatrienes. By forming a coloured enolate with an appropriate absorption band and selectively irradiating in situ, we to initiate a tandem, asymmetric anionic and photochemical ring expansion of readily accessible N-benzylbenzamides. The cascade of reactions leading to the products entails enantioselective benzylic deprotonation with a chiral lithium amide, dearomatizing cyclization of the resulting configurationally defined organolithium to give an extended amide enolate, and photochemically induced formal [1,7]-sigmatropic rearrangement and 6π-electrocyclic ring-opening – the latter all evidently being stereospecific – to deliver enantioenriched cycloheptatrienes with embedded benzylic stereocentres. Irradiation of a mixture of aromatic amide and chiral base leads to a tandem reaction sequence in which dearomatization forms a chromophore capable of photochemical rearrangement leading to overall asymmetric expansion of the aromatic ring.![]()
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Affiliation(s)
- Rakesh K Saunthwal
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - James Mortimer
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Andrew J Orr-Ewing
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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Otog N, Gantogos B, Fujisawa I, Iwasa S. Highly enantioselective synthesis of norcaradiene derivatives from naphthyl diazoacetamides using a Ru( ii)-Pheox complex. Chem Commun (Camb) 2022; 58:12325-12328. [DOI: 10.1039/d2cc04355f] [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
The highly regio- and enantioselective intramolecular cyclopropanation reactions of naphthyl diazoacetamides have been reported herein.
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Affiliation(s)
- Nansalmaa Otog
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Bilguun Gantogos
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Ikuhide Fujisawa
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
| | - Seiji Iwasa
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan
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6
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Huang MY, Zhu SF. Uncommon carbene insertion reactions. Chem Sci 2021; 12:15790-15801. [PMID: 35024104 PMCID: PMC8672736 DOI: 10.1039/d1sc03328j] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/29/2021] [Indexed: 02/06/2023] Open
Abstract
Transition-metal-catalysed carbene insertion reaction is a straightforward and efficient protocol for the construction of carbon–carbon or carbon–heteroatom bonds. Compared to the intensively studied and well-established “common” carbene insertion reactions, including carbene insertion into C–H, Si–H, N–H, O–H, and S–H bonds, several “uncommon” carbene insertion reactions, including carbene insertion into B–H, Sn–H, Ge–H, P–H, F–H, C–C, and M–M bonds, have been neglected for a long time. However, more and more studies on uncommon carbene insertion reactions have been disclosed recently, and clearly demonstrate the great synthetic potential of these reactions. The current perspective reviews the history and the newest advances of uncommon carbene insertion reactions, discusses their potential applications and challenges, and also presents an outlook of this promising field. Transition-metal-catalysed carbene insertion reaction is a straightforward and efficient protocol for the construction of carbon–carbon or carbon–heteroatom bonds.![]()
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Affiliation(s)
- Ming-Yao Huang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
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Buckley AM, Crowley DC, Brouder TA, Ford A, Rao Khandavilli UB, Lawrence SE, Maguire AR. Dirhodium Carboxylate Catalysts from 2-Fenchyloxy or 2-Menthyloxy Arylacetic Acids: Enantioselective C-H Insertion, Aromatic Addition and Oxonium Ylide Formation/Rearrangement. ChemCatChem 2021; 13:4318-4324. [PMID: 34820025 PMCID: PMC8597163 DOI: 10.1002/cctc.202100924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/05/2021] [Indexed: 11/27/2022]
Abstract
A new class of dirhodium carboxylate catalysts have been designed and synthesized from 2-fenchyloxy or 2-menthyloxy arylacetic acids which display excellent enantioselectivity across a range of transformations of α-diazocarbonyl compounds. The catalysts were successfully applied to enantioselective C-H insertion reactions of aryldiazoacetates and α-diazo-β-oxosulfones affording the respective products in up to 93 % ee with excellent trans diastereoselectivity in most cases. Furthermore, efficient desymmetrization in an intramolecular C-H insertion was achieved. In addition, these catalysts prove highly enantioselective for intramolecular aromatic addition with up to 88 % ee, and oxonium ylide formation and rearrangement with up to 74 % ee.
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Affiliation(s)
- Aoife M. Buckley
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - Daniel C. Crowley
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - Thomas A. Brouder
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - Alan Ford
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - U. B. Rao Khandavilli
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - Simon E. Lawrence
- School of ChemistryAnalytical and Biological Chemistry Research FacilityUniversity College CorkCorkIreland
| | - Anita R. Maguire
- School of Chemistry and School of PharmacyAnalytical and Biological Chemistry Research FacilitySynthesis and Solid State Pharmaceutical CentreUniversity College CorkCorkIreland
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Yoshimura T, Chino K, Matsuo JI. Concise synthesis of cycloheptatrienes from aldehydes and the Wittig reagent prepared from pyruvic ester. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153150] [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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Zhao S, Chen XX, Gao N, Qian M, Chen X. Visible-Light-Mediated Cyclopropanation Reactions of 3-Diazooxindoles with Arenes. J Org Chem 2021; 86:7131-7140. [PMID: 33871258 DOI: 10.1021/acs.joc.1c00418] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The cyclopropanation reaction of 3-diazooxindoles with arenes was first accomplished using visible-light irradiation. A series of spiro[norcaradiene-7,3'-indolin]-2'-ones were synthesized for the first time in high yields and with excellent diastereoselectivities. The synthetic usefulness of this catalyst-free photochemical methodology is illustrated by the further controllable rearrangement and epoxidation reactions.
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Affiliation(s)
- Shuai Zhao
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xiang-Xiang Chen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Nan Gao
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Mingcheng Qian
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xin Chen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
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