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Sau S, Das KM, Mondal B, Thakur A. Cobalt(II)-Catalyzed Synthesis of γ-Diketones from Aryl Alkenes and Its Utilization in the Synthesis of Various Heterocyclic Compounds. J Org Chem 2024; 89:7095-7108. [PMID: 38701377 DOI: 10.1021/acs.joc.4c00487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
An earth-abundant Co(II) salt-catalyzed mild and affordable synthetic route has been developed for the synthesis of industrially relevant 1,4-dicarbonyl compounds (or γ-diketones) via oxidative coupling between aryl alkenes and ketones (both cyclic and acyclic) using TBHP and DBU as the oxidant and base, respectively. 1,4-Dicarbonyl compounds are known to be synthesized using expensive metal catalysts, dual catalysts, or low-cost metal complexes combined with an additive or ligand template, which further needs to be synthesized. Herein, we report the synthesis of 1,4-dicarbonyl compounds using cobalt(II) acetate as a catalyst without any expensive co-catalyst or ligand templates. This methodology has a broad substrate scope with significant yields and good functional group tolerance. Generation of unsymmetrical 1,4-dicarbonyls at room temperature and its versatile synthetic expansion to produce synthetically and biologically valuable heterocyclic compounds are salient features of this novel methodology. In addition, various controlled experiments such as primary kinetic isotope effect study, Hammett analysis with variation of the nature of the substituents on the styrene ring, and theoretical calculations (density functional theory) unravel the mechanistic intricacies involved in this new, simple, and atom-economic methodology.
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Affiliation(s)
- Subham Sau
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Krishna Mohan Das
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Bijan Mondal
- Institut für Anorganische Chemie, Universität Regensburg, Universität Strasse 31, 93040 Regensburg, Germany
| | - Arunabha Thakur
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India
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Ghosh D, Samal AK, Parida A, Ikbal M, Jana A, Jana R, Sahu PK, Giri S, Samanta S. Progress in Electrochemically Empowered C-O Bond Formation: Unveiling the Pathway of Efficient Green Synthesis. Chem Asian J 2024:e202400116. [PMID: 38584137 DOI: 10.1002/asia.202400116] [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: 02/01/2024] [Revised: 03/12/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
(C-X) bonds (X=C, N, O) are the main backbone for making different skeleton in the organic synthetic transformations. Among all the sustainable techniques, electro-organic synthesis for C-X bond formation is the advanced tool as it offers a greener and more cost-effective approach to chemical reactions by utilizing electrons as reagents. In this review, we want to explore the recent advancements in electrochemical C-O bond formation. The electrochemically driven C-O bond formation represents an emerging and exciting area of research. In this context, electrochemical techniques offers numerous advantages, including higher yields, cost-efficient production, and simplified work-up procedures. This method enables the continuous and consistent formation of C-O bonds in molecules, significantly enhancing overall reaction yields. Furthermore, both intramolecular and intermolecular C-O bond forming reaction provided valuable products of O-containing acyclic/cyclic analogue. Hence, carbonyl (C=O), ether -O-), and ester (-COOR) functionalization in both cyclic/acyclic analogues have been prepared continuously via this innovative pathway. In this context, we want to discuss one-decade electrochemical synthetic pathways of various C-O bond contains functional group in chronological manner. This review focused on all the synthetic aspects including mechanistic path and has also mentioned overall critical finding regarding the C-O bond formation via electrochemical pathways.
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Affiliation(s)
- Debosmit Ghosh
- Department of Chemistry, Bidhannagar College, Kolkata, 700064, India
| | - Aroop Kumar Samal
- Department of Chemistry, C.V. Raman Global UniversityInstitution, Bhubaneswar, 752054, India
| | - Anita Parida
- Department of Chemistry, C.V. Raman Global UniversityInstitution, Bhubaneswar, 752054, India
| | - Mohammed Ikbal
- Department of Chemistry, Berhampore Girls' College, Berhampore, 742101, India
| | - Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Kolkata, Mohanpur741246, India
| | - Rathin Jana
- Department of Chemistry, Shahid Matangini Hazra Govt. General Degree College for women, West Bengal, India
| | - Pradeepta Kumar Sahu
- Department of Chemistry, C.V. Raman Global UniversityInstitution, Bhubaneswar, 752054, India
| | - Soumen Giri
- Department of Chemistry, C.V. Raman Global UniversityInstitution, Bhubaneswar, 752054, India
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Recyclable gold(I)-catalyzed oxidative cyclization of 1,4-diyn-3-ols leading to highly substituted 3-formylfurans. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Shou J, Qing F. Three‐Component Reaction of Pentafluorosulfanyl Chloride, Alkenes and Diazo Compounds and Synthesis of Pentafluorosulfanylfurans. Angew Chem Int Ed Engl 2022; 61:e202208860. [DOI: 10.1002/anie.202208860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 12/16/2022]
Affiliation(s)
- Jia‐Yi Shou
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Science Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Feng‐Ling Qing
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry University of Chinese Academy of Science Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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Shou JY, Qing FL. Three‐Component Reaction of Pentafluorosulfanyl Chloride, Alkenes and Diazo Compounds and Synthesis of Pentafluorosulfanylfurans. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jia-Yi Shou
- Shanghai Institute of Organic Chemistry Key Laboratory of Organofluorine Chemistry CHINA
| | - Feng-Ling Qing
- Shanghai Institute of Organic Chemistry Laboratory of Organofluorine Chemistry 345 lingling Lu 200032 Shanghai CHINA
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