1
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Min J, Park K, Moon K, Kim HS, Singh P, Kim IS. Thione-Directed C-H Amidation of Chromone Analogues with Dioxazolones under Rh(III) Catalysis. Org Lett 2024. [PMID: 39413300 DOI: 10.1021/acs.orglett.4c03646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2024]
Abstract
Sulfur-containing organic molecules are recognized as promising candidates for catalytic C-H functionalization and medicinal chemistry owing to the exceptional ability of the sulfur atom to bind to transition metals and target enzymes. In this study, we report the Rh(III)-catalyzed thione-directed C-H amidation of various thiochromone analogues derived from flavones, isoflavones, and xanthones. Post-transformations of C5-amidated thiochromone products were investigated, and a series of mechanistic studies were performed.
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Affiliation(s)
- Jeonghyun Min
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Keunju Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kyeongwon Moon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Pargat Singh
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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2
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Ahmad F, Ranga PK, Fatma S, Vijaya Anand R. Domino Approach to Heterocycles-Based Unsymmetrical Triarylmethanes through Heteroannulation of 2-(2-Enynyl)-pyridines with Enaminones. J Org Chem 2024; 89:12104-12117. [PMID: 39137191 DOI: 10.1021/acs.joc.4c01006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Herein, we report a copper-catalyzed protocol to access unsymmetrical triarylmethanes containing both indolizine and the chromone scaffolds in the same molecule via a 5-endo-dig cyclization of 2-(2-enynyl)-pyridines followed by reaction with 2-hydroxyaryl enaminones. A variety of 2-hydroxyaryl enaminones and 2-(2-enynyl)-pyridines were subjected to reaction under the optimal reaction conditions, and the respective triarylmethanes were obtained in good to excellent yields.
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Affiliation(s)
- Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Shaheen Fatma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
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3
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Yu HY, Liu L, Li J, Liu D, Ruan HL. 2-Methoxyjuglone, a Promising Bioactive Compound for Pharmaceutical and Agricultural Purposes: A Review. Curr Med Sci 2022; 42:905-912. [PMID: 36255662 DOI: 10.1007/s11596-022-2633-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/23/2020] [Indexed: 11/03/2022]
Abstract
2-Methoxyjuglone, a member of the 1,4-naphthoquinone family, was first obtained through semi-synthesis based on 2-hydroxyjuglone as the precursor in 1966. It has been isolated and identified from different plant species of the Juglandaceae, Sterculiaceae, and Proteaceae families. 2-Methoxyjuglone has been demonstrated to possess a wide range of biological activities, including antitumor, antifungal, and antibacterial activities; in addition, it has been shown to poison fish and inhibit seed germination. These properties make 2-methoxyjuglone a promising bioactive compound for pharmaceutical and agricultural purposes. This review article provides an overview of the current research progress on 2-methoxyjuglone for the first time, with a primary focus on the plant sources, extraction, identification, synthesis, and biological activities associated with this compound for further development.
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Affiliation(s)
- Heng-Yi Yu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lin Liu
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Juan Li
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dong Liu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Han-Li Ruan
- School of Pharmacy, Tongji Medical College, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Huazhong University of Science and Technology, Wuhan, 430030, China.
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4
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Duan B, Wu Y, Gao Y, Ying L, Tang J, Hu S, Zhao Q, Song Z. Regioselective peri-C-H selenylation of aromatic compounds with weakly coordinating ketone groups. Chem Commun (Camb) 2022; 58:11555-11558. [PMID: 36165048 DOI: 10.1039/d2cc04030a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and versatile method for peri-C-H selenylation of aromatic compounds bearing ketone groups, including chromones, xanthones, acridinones, quinolinones and naphthoquinones with diselenides under Ru(II) catalysis is presented. Various chromones and diselenides are applicable for this transformation, affording 5-selenyl chromones in a highly regioselective manner in good to excellent yields. This transformation is easy to scale up and the desired products can be further modified. Most importantly, this transformation allows the late-stage selenylation of bioactive compounds. Mechanistic studies show that radicals may be involved in this novel transformation.
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Affiliation(s)
- Bingbing Duan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Yao Wu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Yi Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Linkun Ying
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Jielin Tang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Shiyu Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Qiuhua Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China.
| | - Zengqiang Song
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
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5
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Berger A, Knak T, Kiffe-Delf AL, Mudrovcic K, Singh V, Njoroge M, Burckhardt BB, Gopalswamy M, Lungerich B, Ackermann L, Gohlke H, Chibale K, Kalscheuer R, Kurz T. Total Synthesis of the Antimycobacterial Natural Product Chlorflavonin and Analogs via a Late-Stage Ruthenium(II)-Catalyzed ortho-C(sp2)-H-Hydroxylation. Pharmaceuticals (Basel) 2022; 15:ph15080984. [PMID: 36015133 PMCID: PMC9415896 DOI: 10.3390/ph15080984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 12/04/2022] Open
Abstract
The continuous, worldwide spread of multidrug-resistant (MDR) and extensively drug-resistant (XDR) tuberculosis (TB) endanger the World Health Organization’s (WHO) goal to end the global TB pandemic by the year 2035. During the past 50 years, very few new drugs have been approved by medical agencies to treat drug-resistant TB. Therefore, the development of novel antimycobacterial drug candidates to combat the threat of drug-resistant TB is urgent. In this work, we developed and optimized a total synthesis of the antimycobacterial natural flavonoid chlorflavonin by selective ruthenium(II)-catalyzed ortho-C(sp2)-H-hydroxylation of a substituted 3′-methoxyflavonoid skeleton. We extended our methodology to synthesize a small compound library of 14 structural analogs. The new analogs were tested for their antimycobacterial in vitro activity against Mycobacterium tuberculosis (Mtb) and their cytotoxicity against various human cell lines. The most promising new analog bromflavonin exhibited improved antimycobacterial in vitro activity against the virulent H37Rv strain of Mtb (Minimal Inhibitory Concentrations (MIC90) = 0.78 μm). In addition, we determined the chemical and metabolic stability as well as the pKa values of chlorflavonin and bromflavonin. Furthermore, we established a quantitative structure–activity relationship model using a thermodynamic integration approach. Our computations may be used for suggesting further structural changes to develop improved derivatives.
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Affiliation(s)
- Alexander Berger
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
| | - Talea Knak
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
| | - Anna-Lene Kiffe-Delf
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Korana Mudrovcic
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
| | - Vinayak Singh
- South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | - Mathew Njoroge
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | - Bjoern B. Burckhardt
- Institute of Clinical Pharmacy and Pharmacotherapy, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Mohanraj Gopalswamy
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
| | - Beate Lungerich
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Holger Gohlke
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
- John-von-Neumann-Institute for Computing (NIC), Jülich Supercomputing Centre (JSC), Institute of Biological Information Processing (IBI-7: Structural Biochemistry), and Institute of Bio- and Geosciences (IBG-4: Bioinformatics), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany
| | - Kelly Chibale
- South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | - Rainer Kalscheuer
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Thomas Kurz
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany or
- Correspondence:
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6
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Meng L, Liu H, Lin Z, Wang J. Synthetic and Computational Study of the Enantioselective [3+2]-Cycloaddition of Chromones with MBH Carbonates. Org Lett 2022; 24:5890-5895. [PMID: 35925800 DOI: 10.1021/acs.orglett.2c01922] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly efficient and straightforward access to enantioenriched five-membered ring-fused chromanones is developed via [3+2]-cycloaddition of 3-cyanochromones with Morita-Baylis-Hillman carbonates. Densely functionalized chiral cyclopenta[b]chromanones with three continuous quaternary and tertiary stereogenic carbon centers were obtained in high yields with high ee and dr (≤97% yield, 97% ee, and >20:1 dr). Moreover, density functional theory calculations have been carried out to investigate the mechanism and regio- and diastereoselectivity of the reaction.
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Affiliation(s)
- Ling Meng
- Department of Chemistry, Hong Kong Baptist University, Hong Kong 999077, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong 999077, China.,Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China.,Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen 518000, P. R. China
| | - Heyang Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong 999077, China
| | - Jun Wang
- Department of Chemistry, Hong Kong Baptist University, Hong Kong 999077, China.,Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen 518000, P. R. China
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7
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Novel CDK9 inhibitor oroxylin A promotes wild-type P53 stability and prevents hepatocellular carcinoma progression by disrupting both MDM2 and SIRT1 signaling. Acta Pharmacol Sin 2022; 43:1033-1045. [PMID: 34188177 DOI: 10.1038/s41401-021-00708-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/28/2021] [Indexed: 12/21/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most lethal tumours worldwide. However, the effects of first-line sorafenib treatment in advanced HCC fail to prolong patients' survival due to the highly heterogeneous characteristics of HCC etiology. Cyclin-dependent kinase 9 (CDK9) is an important target in the continuous development of cancer therapy. Here, we demonstrate that CDK9 is closely associated with the progression of HCC and can serve as an HCC therapeutic target by modulating the recovery of wild-type p53 (wt-p53) function. We prove that mouse double minute 2 homologue (MDM2) and Sirtuin 1 (SIRT1) are phosphorylated by CDK9 at Ser166 and Ser47, respectively. Inhibition of CDK9 not only reduces the MDM2-mediated ubiquitination and degradation of wt-p53 but also increases wt-p53 stability by suppressing deacetylase activity of SIRT1. Thus, inhibition of CDK9 promotes the wt-p53 stabilization and prevents HCC progression. However, excessive inhibition by high concentrations of specific CDK9 inhibitors counteracts the promotion of p53 stability and reduces their anti-HCC activity because of extreme general transcription repression. The effects of a novel CDK9 inhibitor named oroxylin A (OA) from Scutellaria baicalensis are explored, with the results indicating that OA shows moderate and controlled inhibition of CDK9 activity and expression, and stabilizes wt-p53 by inhibiting CDK9-regulated MDM2 and SIRT1 signaling. These outcomes indicate the high therapeutic potential of OA against HCC and its low toxicity in normal tissue. This study demonstrates a novel mechanism for the regulation of wt-p53 by CDK9 and indicates that OA is a potential candidate for HCC therapy.
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8
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Benny AT, Radhakrishnan EK. Advances in the site-selective C-5, C-3 and C-2 functionalization of chromones via sp 2 C-H activation. RSC Adv 2022; 12:3343-3358. [PMID: 35425362 PMCID: PMC8979368 DOI: 10.1039/d1ra08214k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/22/2021] [Indexed: 02/02/2023] Open
Abstract
In this work, site-selective C-H activation at C-5, C-3 and C-2 positions of chromones for the introduction of structural diversity to the chromone scaffold was studied. The keto group of the chromone moiety acts as the directing group for the selective functionalization of chromones at the C-5 position. Furthermore, the C-H functionalization at the electron-rich C-3 position of the chromone can be achieved using electrophilic coupling partners. The C-H functionalization at the C-2 position can be possible using nucleophilic coupling partners. The direct functionalization methods provide a better pathway for the generation of C-5, C-3 and C-2-substituted chromones with good atom economy than that of classical pre-functionalized reaction protocols.
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9
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Zhu R, Sun Q, Li J, Li L, Gao Q, Wang Y, Fang L. para-Selective hydroxylation of alkyl aryl ethers. Chem Commun (Camb) 2021; 57:13190-13193. [PMID: 34816833 DOI: 10.1039/d1cc06210g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
para-Selective hydroxylation of alkyl aryl ethers is established, which proceeds with a ruthenium(II) catalyst, hypervalent iodine(III) and trifluoroacetic anhydride via a radical mechanism. This protocol tolerates a wide scope of substrates and provides a facile and efficient method for preparing clinical drugs monobenzone and pramocaine on a gram scale.
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Affiliation(s)
- Runqing Zhu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Qianqian Sun
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Jing Li
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Luohao Li
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Qinghe Gao
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Yakun Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
| | - Lizhen Fang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, People's Republic of China.
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10
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Li F, Renata H. A Chiral-Pool-Based Strategy to Access trans-syn-Fused Drimane Meroterpenoids: Chemoenzymatic Total Syntheses of Polysin, N-Acetyl-polyveoline and the Chrodrimanins. J Am Chem Soc 2021; 143:18280-18286. [PMID: 34670085 DOI: 10.1021/jacs.1c08696] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
trans-syn-Fused drimane meroterpenoids are unique natural products that arise from contra-thermodynamic polycyclizations of their polyene precursors. Herein we report the first total syntheses of four trans-syn-fused drimane meroterpenoids, namely polysin, N-acetyl-polyveoline, chrodrimanin C, and verruculide A, in 7-18 steps from sclareolide. The trans-syn-fused drimane unit is accessed through an efficient acid-mediated C9 epimerization of sclareolide. Subsequent applications of enzymatic C-H oxidation and contemporary annulation methodologies install the requisite C3 hydroxyl group and enable rapid generation of structural complexity to provide concise access to these natural products.
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Affiliation(s)
- Fuzhuo Li
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, Florida 33458, United States
| | - Hans Renata
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, Florida 33458, United States
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11
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Luo F, He S, Gou Q, Chen J, Zhang M. Palladium-catalyzed ortho-C-H hydroxylation of benzoic acids. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Shinde VN, Rangan K, Kumar D, Kumar A. Palladium-Catalyzed Weakly Coordinating Lactone-Directed C-H Bond Functionalization of 3-Arylcoumarins: Synthesis of Bioactive Coumestan Derivatives. J Org Chem 2021; 86:9755-9770. [PMID: 34181412 DOI: 10.1021/acs.joc.1c01097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A palladium-catalyzed highly regioselective ortho-selective C-H functionalization of 3-arylcoumarins has been developed. The method utilizes the weakly coordinating lactone as a directing group. The versatility of the strategy is highlighted by developing methodologies for alkenylation, halogenation, fluoroalkoxylation, and hydroxylation. Different functional groups were well tolerated, and functionalized coumarins were obtained in moderate to high yields. The method also showed good selectivity for monofunctionalization versus difunctionalization. The generated ortho-hydroxy derivatives were cyclized in the presence of DDQ, thus developing a simple and fast method for the synthesis of bioactive coumestan from 3-arylcoumarins.
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Affiliation(s)
- Vikki N Shinde
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Telangana 500078, India
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
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13
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Tan X, Massignan L, Hou X, Frey J, Oliveira JCA, Hussain MN, Ackermann L. Rhodaelektrokatalysierte bimetallische C‐H‐Oxygenierung durch schwache
O
‐Koordination. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xuefeng Tan
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Leonardo Massignan
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Xiaoyan Hou
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Johanna Frey
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Masoom Nasiha Hussain
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
- Wöhler Research Institute for Sustainable Chemistry Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
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14
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Tan X, Massignan L, Hou X, Frey J, Oliveira JCA, Hussain MN, Ackermann L. Rhoda-Electrocatalyzed Bimetallic C-H Oxygenation by Weak O-Coordination. Angew Chem Int Ed Engl 2021; 60:13264-13270. [PMID: 33651910 PMCID: PMC8252749 DOI: 10.1002/anie.202017359] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/28/2021] [Indexed: 12/20/2022]
Abstract
Rhodium-electrocatalyzed arene C-H oxygenation by weakly O-coordinating amides and ketones have been established by bimetallic electrocatalysis. Likewise, diverse dihydrooxazinones were selectively accessed by the judicious choice of current, enabling twofold C-H functionalization. Detailed mechanistic studies by experiment, mass spectroscopy and cyclovoltammetric analysis provided support for an unprecedented electrooxidation-induced C-H activation by a bimetallic rhodium catalysis manifold.
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Affiliation(s)
- Xuefeng Tan
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Leonardo Massignan
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Xiaoyan Hou
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Johanna Frey
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Masoom Nasiha Hussain
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
- Wöhler Research Institute for Sustainable ChemistryGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
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15
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Małecka M, Skoczyńska A, Goodman DM, Hartinger CG, Budzisz E. Biological properties of ruthenium(II)/(III) complexes with flavonoids as ligands. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213849] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Vellakkaran M, Hong S. Visible‐light‐induced Reactions Driven by Photochemical Activity of Quinolinone and Coumarin Scaffolds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mari Vellakkaran
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) 34141 Daejeon Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 34141 Daejeon Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) 34141 Daejeon Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 34141 Daejeon Korea
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17
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Fu L, Xu Z, Wan JP, Liu Y. The Domino Chromone Annulation and a Transient Halogenation-Mediated C–H Alkenylation toward 3-Vinyl Chromones. Org Lett 2020; 22:9518-9523. [DOI: 10.1021/acs.orglett.0c03548] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
- College of Chemistry and Bio-Engineering, Yichun University, Yichun, Jiangxi 336000, P. R. China
| | - Zhongrong Xu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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18
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Tian S, Luo T, Zhu Y, Wan JP. Recent advances in the diversification of chromones and flavones by direct C H bond activation or functionalization. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Iqbal Z, Joshi A, Ranjan De S. Recent Advancements on Transition‐Metal‐Catalyzed, Chelation‐Induced
ortho
‐Hydroxylation of Arenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000762] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zafar Iqbal
- National Institute of Technology Uttarakhand Srinagar Garhwal Uttarakhand 246174 India
| | - Asha Joshi
- National Institute of Technology Uttarakhand Srinagar Garhwal Uttarakhand 246174 India
| | - Saroj Ranjan De
- National Institute of Technology Uttarakhand Srinagar Garhwal Uttarakhand 246174 India
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20
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Zhou Y, Liang H, Sheng Y, Wang S, Gao Y, Zhan L, Zheng Z, Yang M, Liang G, Zhou J, Deng J, Song Z. Ruthenium(II)-Catalyzed C-H Activation of Chromones with Maleimides to Synthesize Succinimide/Maleimide-Containing Chromones. J Org Chem 2020; 85:9230-9243. [PMID: 32578431 DOI: 10.1021/acs.joc.0c01223] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient route for the coupling of maleimides with chromones at the C5-position has been developed under Ru(II) catalysis. It could provide 1,4-addition products and oxidative Heck-type products by switching additives. Benzoic acid led to the formation of 1,4-addition products under solvent-free conditions, and silver acetate was promoted to the generation of oxidative Heck-type products. Various maleimides and chromones were suitable for this transformation, affording the desired products with good to excellent yields in a short reaction time. To understand the mechanism of this reaction, deuteration studies and control experiments have been performed.
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Affiliation(s)
- Yan Zhou
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Hong Liang
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Yaoguang Sheng
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Shaoli Wang
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Yi Gao
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Lingling Zhan
- The First Affiliated Hospital, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Zhilong Zheng
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Mengjie Yang
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Guang Liang
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Jianmin Zhou
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Jun Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Zengqiang Song
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
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21
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Kerste E, Beller MP, Koert U. Second Generation Total Synthesis of (–)‐Preussochromone D. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000465] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Eric Kerste
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein Strasse 4 35032 Marburg Germany
| | - Marc Paul Beller
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein Strasse 4 35032 Marburg Germany
| | - Ulrich Koert
- Fachbereich Chemie Philipps‐Universität Marburg Hans‐Meerwein Strasse 4 35032 Marburg Germany
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22
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Dai C, Han Y, Liu L, Huang ZB, Shi DQ, Zhao Y. Palladium-catalyzed ortho-selective C–H hydroxylation of carboxybenzyl-protected benzylamines. Org Chem Front 2020. [DOI: 10.1039/c9qo01523j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A convenient approach to synthesize o-hydroxybenzylamine via Pd-catalyzed hydroxylation of benzylamine with a removable Cbz-amide as the directing group was developed.
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Affiliation(s)
- Chenyang Dai
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yi Han
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Lingling Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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23
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Affiliation(s)
- Shanshan Gao
- Materials Science and Chemical EngineeringNingbo University, Ningbo, P. R. China 315211
| | - Xing Xu
- Materials Science and Chemical EngineeringNingbo University, Ningbo, P. R. China 315211
| | - Hao Tang
- Materials Science and Chemical EngineeringNingbo University, Ningbo, P. R. China 315211
| | - Jia‐Qiang Wu
- School of Biotechnology and Health SciencesWuyi University, Jiangmen, P. R. China 529020
| | - Junfei Luo
- Materials Science and Chemical EngineeringNingbo University, Ningbo, P. R. China 315211
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24
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Trammell R, D'Amore L, Cordova A, Polunin P, Xie N, Siegler MA, Belanzoni P, Swart M, Garcia-Bosch I. Directed Hydroxylation of sp 2 and sp 3 C-H Bonds Using Stoichiometric Amounts of Cu and H 2O 2. Inorg Chem 2019; 58:7584-7592. [PMID: 31084018 DOI: 10.1021/acs.inorgchem.9b00901] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The use of copper for C-H bond functionalization, compared to other metals, is relatively unexplored. Herein, we report a synthetic protocol for the regioselective hydroxylation of sp2 and sp3 C-H bonds using a directing group, stoichiometric amounts of Cu and H2O2. A wide array of aromatic ketones and aldehydes are oxidized in the carbonyl γ-position with remarkable yields. We also expanded this methodology to hydroxylate the β-position of alkylic ketones. Spectroscopic characterization, kinetics, and density functional theory calculations point toward the involvement of a mononuclear LCuII(OOH) species, which oxidizes the aromatic sp2 C-H bonds via a concerted heterolytic O-O bond cleavage with concomitant electrophilic attack on the arene system.
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Affiliation(s)
- Rachel Trammell
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Lorenzo D'Amore
- University of Girona , Campus Montilivi (Ciències), IQCC , 17004 Girona , Spain
| | - Alexandra Cordova
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Pavel Polunin
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Nan Xie
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Maxime A Siegler
- Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | - Paola Belanzoni
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , Via Elce di Sotto 8 , 06123 Perugia , Italy.,Consortium for Computational Molecular and Materials Sciences (CMS)2 , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Marcel Swart
- University of Girona , Campus Montilivi (Ciències), IQCC , 17004 Girona , Spain.,ICREA , Pg. Lluís Companys 23 , 08010 Barcelona , Spain
| | - Isaac Garcia-Bosch
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
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25
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Fu L, Wan J. C3‐Functionalized Chromones Synthesis by Tandem C−H Elaboration and Chromone Annulation of Enaminones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900196] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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26
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Zeng Z, Zhao Y, Zhang Y. Divergent total syntheses of five illudalane sesquiterpenes and assignment of the absolute configuration. Chem Commun (Camb) 2019; 55:4250-4253. [PMID: 30901009 DOI: 10.1039/c9cc00933g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Concise, divergent total syntheses of five bioactive illudalane sesquiterpenes have been achieved. Our synthesis features an intermolecular [2+2+2] cycloaddition, and a lactone-directed aromatic C-H oxygenation to generate a temporary phenolic hydroxyl group which enables regioselective methylation. Furthermore, the absolute configuration of radulactone was assigned by chemical synthesis.
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Affiliation(s)
- Zhixiong Zeng
- Department of Chemistry and Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China.
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27
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Yuan YC, Bruneau C, Dorcet V, Roisnel T, Gramage-Doria R. Ru-Catalyzed Selective C–H Bond Hydroxylation of Cyclic Imides. J Org Chem 2019; 84:1898-1907. [DOI: 10.1021/acs.joc.8b02899] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu-Chao Yuan
- Univ Rennes, CNRS, ISCR – UMR 6226, F-35000 Rennes, France
| | | | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR – UMR 6226, F-35000 Rennes, France
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28
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Tiwari VK, Kapur M. Catalyst-controlled positional-selectivity in C–H functionalizations. Org Biomol Chem 2019; 17:1007-1026. [DOI: 10.1039/c8ob02272k] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
C–H bonds are ubiquitous in organic molecules and typically these bonds are chemically indistinct from each other and it would be highly advantageous for a synthetic chemist to have the ability to choose which C–H bond is functionalized in a given molecule.
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Affiliation(s)
- Virendra Kumar Tiwari
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Manmohan Kapur
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
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29
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Mkrtchyan S, Iaroshenko VO. New Entries to 3-Acylchromones: TM-Catalysed Decarboxylative Cross-Coupling of α-Keto Acids with ortho
-Hydroxyarylenaminones, 2,3-Unsubstituted Chromones and 3-Iodochromones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
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30
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Chen C, Pan Y, Zhao H, Xu X, Luo Z, Cao L, Xi S, Li H, Xu L. Ruthenium(II)-Catalyzed Regioselective C-8 Hydroxylation of 1,2,3,4-Tetrahydroquinolines. Org Lett 2018; 20:6799-6803. [PMID: 30351962 DOI: 10.1021/acs.orglett.8b02926] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ru(II)-catalyzed chelation-assisted highly regioselective C8-hydroxylation of 1,2,3,4-tretrahydroquinolines has been developed. Various 1,2,3,4-tetrahydroquinolines underwent smooth C8-H hydroxylation with cheap and safe K2S2O8 as the oxidant and oxygen source to furnish the corresponding products in good to excellent yields with high tolerance of the functional groups. The choice of a readily installable and removable N-pyrimidyl directing group is the key to catalysis. Mechanistic studies suggest the involvement of a six-membered ruthenacycle intermediate in the catalytic cycle. The method can also be extended to the direct hydroxylation of other (hetero)arene C-H bonds.
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Affiliation(s)
- Changjun Chen
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Yixiao Pan
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Haoqiang Zhao
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Xin Xu
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Zhenli Luo
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Lei Cao
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Siqi Xi
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Huanrong Li
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Lijin Xu
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
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31
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Kang D, Ahn K, Hong S. Site-Selective C−H Bond Functionalization of Chromones and Coumarins. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800128] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dahye Kang
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
| | - Kukcheol Ahn
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
| | - Sungwoo Hong
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Korea
- Center for Catalytic Hydrocarbon Functionalizations; Institute for Basic Science (IBS); Daejeon Korea
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32
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Zhang C, Song Y, Sang Z, Zhan L, Rao Y. Mixing O-Containing and N-Containing Directing Groups for C-H Activation: A Strategy for the Synthesis of Highly Functionalized 2,2'-Biaryls. J Org Chem 2018; 83:2582-2591. [PMID: 29406735 DOI: 10.1021/acs.joc.7b02863] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A strategy combining O- and N-containing directing groups has been developed for the synthesis of 2,2'-biaryl via Pd-mediated C-H bond activation and oxidative coupling. This new transformation may proceed through a mechanism involving Pd(II) and Pd(IV) intermediates. We found the use of PTSA and HFIP to be critical for the reaction and suggest that these reagents could serve as efficient ligands for this C-C bond formation. This methodology provides broad functional group tolerance, excellent reactivity, and high yields.
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Affiliation(s)
- Chao Zhang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Yugang Song
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Zhihui Sang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Lingpeng Zhan
- MOE Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yu Rao
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
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33
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Viswanadh N, Ghotekar GS, Thoke MB, Velayudham R, Shaikh AC, Karthikeyan M, Muthukrishnan M. Transition metal free regio-selective C–H hydroxylation of chromanones towards the synthesis of hydroxyl-chromanones using PhI(OAc)2 as the oxidant. Chem Commun (Camb) 2018; 54:2252-2255. [DOI: 10.1039/c7cc08588e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Herein, we report a highly efficient PhI(OAc)2 mediated regioselective, direct C–H hydroxylation of chromanones.
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Affiliation(s)
- N. Viswanadh
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific & Innovative Research (ACSIR)
| | - Ganesh S. Ghotekar
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific & Innovative Research (ACSIR)
| | - Mahesh B. Thoke
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
| | - R. Velayudham
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
| | - Aslam C. Shaikh
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific & Innovative Research (ACSIR)
| | - M. Karthikeyan
- Academy of Scientific & Innovative Research (ACSIR)
- CSIR-NCL Campus
- Pune
- India
- Division of Chemical Engineering and Process Development
| | - M. Muthukrishnan
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411 008
- India
- Academy of Scientific & Innovative Research (ACSIR)
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34
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da Silva Júnior EN, Jardim GAM, Gomes RS, Liang YF, Ackermann L. Weakly-coordinating N-oxide and carbonyl groups for metal-catalyzed C–H activation: the case of A-ring functionalization. Chem Commun (Camb) 2018; 54:7398-7411. [DOI: 10.1039/c8cc03147a] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This feature review is focused on recent challenges based on the functionalizations at C-8 and C-5 positions of heterocyclic and quinoidal compounds – a topic that is still rarely explored in the literature.
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Affiliation(s)
| | - Guilherme A. M. Jardim
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Roberto S. Gomes
- Faculty of Exact Sciences and Technologies
- Federal University of Grande Dourados
- Dourados
- Brazil
- Department of Chemistry and Chemical Biology
| | - Yu-Feng Liang
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- Gottingen 37077
- Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- Gottingen 37077
- Germany
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35
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Liu Y, Liu S, Xiao Y. Transition-metal-catalyzed synthesis of phenols and aryl thiols. Beilstein J Org Chem 2017; 13:589-611. [PMID: 28405239 PMCID: PMC5372758 DOI: 10.3762/bjoc.13.58] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 03/09/2017] [Indexed: 12/28/2022] Open
Abstract
Phenols and aryl thiols are fundamental building blocks in organic synthesis and final products with interesting biological activities. Over the past decades, substantial progress has been made in transition-metal-catalyzed coupling reactions, which resulted in the emergence of new methods for the synthesis of phenols and aryl thiols. Aryl halides have been extensively studied as substrates for the synthesis of phenols and aryl thiols. In very recent years, C-H activation represents a powerful strategy for the construction of functionalized phenols directly from various arenes. However, the synthesis of aryl thiols through C-H activation has not been reported. In this review, a brief overview is given of the recent advances in synthetic strategies for both phenols and aryl thiols.
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Affiliation(s)
- Yajun Liu
- College of Life Science and Medicine, Dalian University of Technology, Panjin 124221, China
| | - Shasha Liu
- College of Life Science and Medicine, Dalian University of Technology, Panjin 124221, China
| | - Yan Xiao
- Department of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
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36
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Kim HY, Song E, Oh K. Unified Approach to (Thio)chromenones via One-Pot Friedel–Crafts Acylation/Cyclization: Distinctive Mechanistic Pathways of β-Chlorovinyl Ketones. Org Lett 2016; 19:312-315. [DOI: 10.1021/acs.orglett.6b03348] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hun Young Kim
- Center for Metareceptome
Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Eunsun Song
- Center for Metareceptome
Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome
Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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37
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Zhong S, Liu Y, Cao X, Wan JP. KIO3-Catalyzed Domino C(sp2)−H Bond Sulfenylation and C−N Bond Oxygenation of Enaminones toward the Synthesis of 3-Sulfenylated Chromones. ChemCatChem 2016. [DOI: 10.1002/cctc.201601273] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shanshan Zhong
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Xiaoji Cao
- Research Center of Analysis and Measurement; Zhejiang University of Technology; 18 Chaowang Road, Hangzhou Zhejiang 310014 P.R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
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Han SH, Kim S, De U, Mishra NK, Park J, Sharma S, Kwak JH, Han S, Kim HS, Kim IS. Synthesis of Succinimide-Containing Chromones, Naphthoquinones, and Xanthones under Rh(III) Catalysis: Evaluation of Anticancer Activity. J Org Chem 2016; 81:12416-12425. [PMID: 27978756 DOI: 10.1021/acs.joc.6b02577] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The weakly coordinating ketone group directed C-H functionalizations of chromones, 1,4-naphthoquinones, and xanthones with various maleimides under rhodium(III) catalysis are described. These protocols efficiently provide a range of succinimide-containing chromones, naphthoquinones, and xanthones with excellent site selectivity and functional group compatibility. All synthetic compounds were screened for in vitro anticancer activity against human breast adenocarcinoma cell lines (MCF-7). In particular, compounds 7aa and 7ca with a naphthoquinone scaffold were found to be highly cytotoxic, with an activity competitive with anticancer agent doxorubicin.
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Affiliation(s)
- Sang Hoon Han
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Saegun Kim
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Umasankar De
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Neeraj Kumar Mishra
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Jihye Park
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Satyasheel Sharma
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Jong Hwan Kwak
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Sangil Han
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
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Huestis MP. Rhodium(III)-Catalyzed C–H Functionalization of 1-(2H)-Phthalazinones at C8. J Org Chem 2016; 81:12545-12552. [DOI: 10.1021/acs.joc.6b02522] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Malcolm P. Huestis
- Discovery Chemistry, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
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40
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Navarro-Retamal C, Caballero J. Flavonoids as CDK1 Inhibitors: Insights in Their Binding Orientations and Structure-Activity Relationship. PLoS One 2016; 11:e0161111. [PMID: 27517610 PMCID: PMC4982677 DOI: 10.1371/journal.pone.0161111] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/29/2016] [Indexed: 01/20/2023] Open
Abstract
In the last years, the interactions of flavonoids with protein kinases (PKs) have been described by using crystallographic experiments. Interestingly, different orientations have been found for one flavonoid inside different PKs and different chemical substitutions lead to different orientations of the flavonoid scaffold inside one PK. Accordingly, orientation predictions of novel analogues could help to the design of flavonoids with high PK inhibitory activities. With this in mind, we studied the binding modes of 37 flavonoids (flavones and chalcones) inside the cyclin-dependent PK CDK1 using docking experiments. We found that the compounds under study adopted two different orientations into the active site of CDK1 (orientations I and II in the manuscript). In addition, quantitative structure-activity relationship (QSAR) models using CoMFA and CoMSIA methodologies were constructed to explain the trend of the CDK1 inhibitory activities for the studied flavonoids. Template-based and docking-based alignments were used. Models developed starting from docking-based alignment were applied for describing the whole dataset and compounds with orientation I. Adequate R2 and Q2 values were obtained by each method; interestingly, only hydrophobic and hydrogen bond donor fields describe the differential potency of the flavonoids as CDK1 inhibitors for both defined alignments and subsets. Our current application of docking and QSAR together reveals important elements to be drawn for the design of novel flavonoids with increased PK inhibitory activities.
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Affiliation(s)
- Carlos Navarro-Retamal
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile
| | - Julio Caballero
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile
- * E-mail:
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41
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Wang TH, Lee WC, Ong TG. Ruthenium-Mediated Dual Catalytic Reactions of Isoquinoline via
C−H Activation and Dearomatization for Isoquinolone. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ting-Hsuan Wang
- Institute of Chemistry; Academia Sinica; Taipei Taiwan
- Department of Engineering and System Science; National Tsing Hua University; HshiChu Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program; Academia Sinica and National Tsing Hua University; Taiwan
| | - Wei-Chih Lee
- Institute of Chemistry; Academia Sinica; Taipei Taiwan
- Department of Interface Chemistry, Division of Applied Chemistry, Material and Chemical Research Laboratories; Industrial Technology Research Institute; Taiwan
| | - Tiow-Gan Ong
- Institute of Chemistry; Academia Sinica; Taipei Taiwan
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42
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Nguyen THL, Gigant N, Delarue-Cochin S, Joseph D. Palladium-Catalyzed Oxidative Synthesis of Unsymmetrical Azophenols. J Org Chem 2016; 81:1850-7. [DOI: 10.1021/acs.joc.5b02614] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Thi Hong Long Nguyen
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Nicolas Gigant
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Sandrine Delarue-Cochin
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Delphine Joseph
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
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Rao MLN, Ramakrishna BS. Rh-catalyzed direct synthesis of 2,2′-dihydroxybenzophenones and xanthones. RSC Adv 2016. [DOI: 10.1039/c6ra18647e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
An efficient rhodium-catalyzed direct synthesis of 2,2′-dihydroxybenzophenones and xanthones was developed from functionalized salicylaldehydes.
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Affiliation(s)
- Maddali L. N. Rao
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
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