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Ma KX, Hong CM, Yan JM, Li QH, Liu TL. Synthesis of 1,2,4,5-tetra-substituted benzenes via copper-catalyzed dimerization of γ,δ-unsaturated ketones. Chem Commun (Camb) 2024; 60:7753-7756. [PMID: 38973629 DOI: 10.1039/d4cc02458c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
An efficient cyclization for the synthesis of 1,2,4,5-tetra-substituted benzenes via copper catalyzed dimerization of γ,δ-unsaturated ketones has been described. This one-pot procedure employs the γ,δ-unsaturated ketones as the sole substrate with multiple C-C bond formation. This protocol features broad substrate scope and provides a facile and robust method to construct polysubstituted benzene derivatives under mild conditions.
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Affiliation(s)
- Kai-Xian Ma
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Chuan-Ming Hong
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Jiang-Min Yan
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Qing-Hua Li
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Tang-Lin Liu
- Chongqing Key Laboratory of Soft-Matter Materials Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Dethe DH, Uike A, Beeralingappa NC. Ru(II)-Catalyzed Deoxygenative Formal [3 + 1 + 2] Benzannulation of Allyl Alcohols and Acetylenediesters via C-H Activation and Selective Carbon-Carbon Triple Bond Cleavage. Org Lett 2024; 26:2013-2017. [PMID: 38437734 DOI: 10.1021/acs.orglett.4c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
An unprecedented Ru(II)-catalyzed deoxygenative, site-selective formal [3 + 1 + 2] benzannulation reaction for the efficient synthesis of highly substituted benzene molecules is reported. This reaction between allyl alcohols and acetylenedicarboxylate esters proceeds via cascade C-H activation, consecutive double migratory insertion with alkynes, and cycloaromatization followed by an unusual specific C-C triple bond cleavage.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Amar Uike
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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Ramkumar R, Srikriya S, Anbarasan P. Copper(I)-Catalyzed Tandem Aminobenzannulation of Dienyne with Sulfonyl Azide. J Org Chem 2024; 89:3292-3303. [PMID: 38373699 DOI: 10.1021/acs.joc.3c02742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
A general and efficient copper-catalyzed tandem aminobenzannulation of dienyne has been accomplished employing sulfonyl azides as a coupling partner. The reaction involves the formation of both C-C and C-N bonds via the initial generation of copper-catalyzed ketenimine from terminal alkyne and sulfonyl azide followed by electrocyclic ring closure and aromatization. The developed reaction is operationally simple and allows the synthesis of diverse substituted aminonaphthalenes and fused aminoarenes in good to excellent yields with high selectivities.
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Affiliation(s)
- Rajagopal Ramkumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Subramanian Srikriya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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4
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Vuagnat M, Jubault P, Besset T. Sequential ortho-/ meta-C-H functionalizations of N-tosyl-benzamides for the synthesis of polyfunctionalized arenes. Chem Commun (Camb) 2024; 60:2244-2247. [PMID: 38317563 DOI: 10.1039/d3cc05919g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Selective one-pot sequential ortho-/meta-C-H functionalizations provided highly desirable polyfunctionalized arenes. Starting from readily available carboxylic acid derivatives, the concomitant formation of C-O and C-halogen bonds was achieved under mild reaction conditions (12 examples, up to 75% yield). The utility of the products was illustrated with post-functionalization reactions and Metiglinid synthesis.
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Affiliation(s)
- Martin Vuagnat
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, Rouen F-76000, France.
| | - Philippe Jubault
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, Rouen F-76000, France.
| | - Tatiana Besset
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, Rouen F-76000, France.
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Davas DS, Gopalakrishnan DK, Bar K, Kumar S, Karmakar T, Vaitla J. Divergent Approach to Highly Substituted Arenes via [3 + 3] Annulation of Vinyl Sulfoxonium Ylides with Ynones. Org Lett 2023; 25:8992-8996. [PMID: 38084931 DOI: 10.1021/acs.orglett.3c03570] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Herein, we report the divergent benzannulation for highly substituted arenes using vinyl sulfoxonium ylides and ynones. The addition of ynone at the γ-position of vinyl sulfoxonium ylides leads to dienyl sulfoxonium ylide that can undergo selective annulation under different conditions to give m-terphenyls and parabens. Moreover, control experiments and quantum chemical calculations reveal two distinct reaction mechanisms for both annulations.
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Affiliation(s)
- Daksh Singh Davas
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | | | - Krishnendu Bar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Sandeep Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Tarak Karmakar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Janakiram Vaitla
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
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Bak JM, Song M, Shin I, Lim HN. A deconstruction-reconstruction strategy to access 1-naphthol derivatives: application to the synthesis of aristolactam scaffolds. Org Biomol Chem 2023; 21:8936-8941. [PMID: 37916683 DOI: 10.1039/d3ob01603j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A deconstruction-reconstruction strategy for the synthesis of multisubstituted polycyclic aromatic hydrocarbons (PAHs) is delineated herein. The deconstruction step enables the synthesis of o-cyanomethylaroyl fluorides that are bifunctional substrates holding both a pro-nucleophile and an electrophile. The construction step involves a formal [4 + 2] benzannulation using o-cyanomethylaroyl fluorides and active methylenes. The utility of this synthetic method is also demonstrated by the synthesis of a tetracyclic aristolactam derivative.
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Affiliation(s)
- Jeong Min Bak
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Moonyeong Song
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Inji Shin
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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Hore S, Singh A, De S, Singh N, Gandon V, Singh RP. Polyarylquinone Synthesis by Relayed Dehydrogenative [2 + 2 + 2] Cycloaddition. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Soumyadip Hore
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Abhijeet Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shreemoyee De
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Neetu Singh
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris Saclay, Orsay Cedex 91405, France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, Palaiseau Cedex 91128, France
| | - Ravi P. Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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