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Rathod AB, Borade BR, Sambherao PI, Kontham R. Bi(OTf) 3-promoted cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters for the construction of polycyclic bridged pyrano-furopyranones. Org Biomol Chem 2024; 22:496-500. [PMID: 38165227 DOI: 10.1039/d3ob01862h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
An efficient protocol for constructing complex three dimensional polycyclic bridged chromano-furopyranones and pyrano-furopyranones (closely related to bioactive natural products) via bismuth(III)-catalyzed cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters is presented. This process involves intermolecular Michael addition, intramolecular hemiketalization, lactonization, formation of one C-C bond and two C-O bonds, rings, and contiguous stereocenters.
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Affiliation(s)
- Akshay B Rathod
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Balasaheb R Borade
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pooja I Sambherao
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Ravindar Kontham
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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Shkoor M, Thotathil V, Al-Zoubi RM, Su HL, Bani-Yaseen AD. Combined experimental and computational investigations of the fluorosolvatochromism of chromeno[4,3-b]pyridine derivatives: Effect of the methoxy substitution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123210. [PMID: 37536243 DOI: 10.1016/j.saa.2023.123210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
Extensive research has been conducted on the spectral properties of chromeno[4,3-b]pyridine derivatives, owing to their potential applications in sensing, optoelectronic devices, and drug discovery. This study presents a comprehensive investigation into the fluorosolvatochromism of selected chromeno[4,3-b]pyridine derivatives, with a particular emphasis on the impact of methoxy substitution. Three derivatives were synthesized and subjected to spectral analysis: chromeno[4,3-b]pyridine-3-carboxylate (I) as the parent compound, and its 7-methoxy (II) and 8-methoxy (III) substituted derivatives.The UV-Vis absorption spectra of all derivatives exhibited a broad band with a maximum absorption wavelength that remained unaffected by the surrounding medium. However, distinct fluorescence properties were observed among them. Specifically, derivative II displayed notable fluorescence, while derivatives I and III exhibited no fluorescence properties. Furthermore, derivative II exhibited a fluorescence spectrum that is significantly influenced by the polarity of the medium. To investigate the fluorosolvatochromic behavior in depth, we conducted a comprehensive analysis using various neat solvents with different polarities and hydrogen bonding capabilities. The results obtained revealed a significant positive fluorosolvatochromism, with a bathochromic shift in the fluorescence spectrum as the solvent polarity increased. To understand how specific and non-specific interactions between the solute and the solvent affected the fluorosolvatochromism of II, we employed the four empirical scales model of Catalán. The obtained results demonstrated that intramolecular charge transfer played a crucial role in the fluorescence behavior of II. To provide a molecular-level explanation for the experimental spectral properties, we utilized the DFT and TD-DFT/B3LYP/6-31 + G(d) computational methods with the IEFPCM implicit solvation approach. The spectral differences between II and III were rationalized in terms of the frontier molecular orbitals (FMOs: the HOMO and LUMO), where distinct natures were observed among the examined derivatives. This study offers valuable insights into the impact of methoxy substitution on the physical and chemical properties of chromeno[4,3-b]pyridine derivatives, specifically concerning their spectral properties as elucidated by their fluorosolvatochromic behavior.
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Affiliation(s)
- Mohanad Shkoor
- Department of Chemistry & Earth Sciences, Faculty of Arts & Science, Qatar University, P.O. Box: 2713, Doha, Qatar.
| | - Vandana Thotathil
- Department of Chemistry & Earth Sciences, Faculty of Arts & Science, Qatar University, P.O. Box: 2713, Doha, Qatar
| | - Raed M Al-Zoubi
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar; Department of Biomedical Sciences, College of Health Sciences, QU-Health, Qatar University, Doha 2713, Qatar; Department of Chemistry, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Haw-Lih Su
- Department of Nature Biotechnology, Nanhua University, Chiayi County 62249, Taiwan
| | - Abdulilah Dawoud Bani-Yaseen
- Department of Chemistry & Earth Sciences, Faculty of Arts & Science, Qatar University, P.O. Box: 2713, Doha, Qatar.
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Salinas-Torres A, Jiménez E, Becerra D, Martínez JJ, Rojas H, Castillo JC, Macías MA. Synthesis, anticancer evaluation, thermal and X-ray crystallographic analysis of 2-oxo-2H-chromen-7-yl 4-chlorobenzoate using a conductively heated sealed-vessel reactor. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Dettori T, Sanna G, Cocco A, Serreli G, Deiana M, Palmas V, Onnis V, Pilia L, Melis N, Moi D, Caria P, Secci F. Synthesis and Antiproliferative Effect of Halogenated Coumarin Derivatives. Molecules 2022; 27:molecules27248897. [PMID: 36558029 PMCID: PMC9786284 DOI: 10.3390/molecules27248897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/07/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
A series of 6- and 6,8-halocoumarin derivatives have been investigated as potential antiproliferative compounds against a panel of tumor and normal cell lines. Cytotoxic effects were determined by the MTT method. To investigate the potential molecular mechanism involved in the cytotoxic effect, apoptosis assay, cell cycle analysis, reactive oxygen species (ROS), and reduced glutathione analysis were performed. Among the screened compounds, coumarins 6,8-dibromo-2-oxo-2H-chromene-3-carbonitrile 2h and 6,8-diiodo-2-oxo-2H-chromene-3-carbonitrile 2k exhibited the most antiproliferative effect in thyroid cancer-derived cells TPC-1. The apoptosis assay showed that both 2h and 2k induced apoptosis in TPC-1 thyroid cancer cells. According to these experiments, both coumarins induced a slight increase in TPC-1 cells in the G2/M phase and a decrease in the S phase. A significant increase in ROS levels was observed in TPC-1 treated with diiodocoumarin 2k, while the dibromocoumarin 2h induced a decrease in ROS in a dose and time-dependent manner.
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Affiliation(s)
- Tinuccia Dettori
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Giuseppina Sanna
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Andrea Cocco
- Department of Chemical and Geological Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Gabriele Serreli
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Monica Deiana
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Vanessa Palmas
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Valentina Onnis
- Department of Life and Environmental Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
| | - Luca Pilia
- Department of Mechanical, Chemical and Material Engineering, University of Cagliari, 09123 Cagliari, CA, Italy
| | - Nicola Melis
- Department of Mechanical, Chemical and Material Engineering, University of Cagliari, 09123 Cagliari, CA, Italy
| | - Davide Moi
- Department of Chemical and Geological Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
- Department of Life and Environmental Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
- Correspondence: (D.M.); (P.C.); (F.S.)
| | - Paola Caria
- Department of Biomedical Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
- Correspondence: (D.M.); (P.C.); (F.S.)
| | - Francesco Secci
- Department of Chemical and Geological Sciences, University of Cagliari, University Campus, 09042 Monserrato, CA, Italy
- Correspondence: (D.M.); (P.C.); (F.S.)
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Lyapchev R, Koleva AI, Koleva IZ, Subev K, Madzharova I, Simeonova KB, Petkova-Yankova N, Morgenstern B, Lozanova V, Petrov PY, Nikolova RD. Efficient Synthesis of Fluorescent Coumarins and Phosphorous-Containing Coumarin-Type Heterocycles via Palladium Catalyzed Cross-Coupling Reactions. Molecules 2022; 27:molecules27217649. [PMID: 36364471 PMCID: PMC9654183 DOI: 10.3390/molecules27217649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/24/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Quantum-chemical calculations on the spectral properties of some aryl substituted 3-phosphonocoumarins were performed, and the effect of the substituents in the aryl moiety was evaluated. The structures possessing promising fluorescent properties were successfully synthesized via Suzuki and Sonogashira cross-coupling. The synthetic protocol was also applied for the phosphorous chemoisomer of 3-phosphonocoumarin, 1,2-benzoxaphosphorin, and their carboxylate analogues. The optical properties of the arylated and alkynylated products were experimentally determined. The obtained quantum-chemical and experimental results give the possibility for a fine tuning of the optical properties of phosphorous-containing coumarin systems by altering the substituent at its C-6 position.
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Affiliation(s)
- Rumen Lyapchev
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Ana I. Koleva
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
- Correspondence: ; Tel.: +359-2-8161-249
| | - Iskra Z. Koleva
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Kristian Subev
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Ivelina Madzharova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Kristina B. Simeonova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Nevena Petkova-Yankova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Bernd Morgenstern
- Department of Inorganic Solid-State Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Vesela Lozanova
- Department of Medicinal Chemistry and Biochemistry, Medicinal University of Sofia, 1431 Sofia, Bulgaria
| | - Petar Y. Petrov
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
| | - Rositca D. Nikolova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria
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Tigreros A, Portilla J. Ecological and economic effort analysis in molecular sensor development used for optical detection of cyanide ions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexis Tigreros
- Universidad de Los Andes Chemistry , Carrera 1 No. 18A-10 111711 Bogotá DC COLOMBIA
| | - Jaime Portilla
- Universidad de los Andes Bogotá D. C. Cra. 1 No. 18 A 12, Edificio Q, Of. 830Call 95 No. 71 - 11, Apto 204-1 111711 Bogotá COLOMBIA
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Muralidhar B, Victoria GG, Kumar KS, Sabbsani RR. Copper‐mediated relay strategy using chlorination/oxidation: An effective synthesis of functionalized coumarin derivatives. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Baitinti Muralidhar
- Vellore Institute of Technology: VIT University school of advanced sciences INDIA
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Abstract
Coumarin (2H-chromen-2-one) derivatives have important uses in medicinal and synthetic chemistry, for example, as fluorescent probes. These properties have prompted chemists to develop efficient synthetic methods to synthesize the coumarin core and/or to functionalize it. In this context, many metal-catalyzed syntheses of coumarins have been introduced; among them, copper-catalyzed reactions appear to be very promising owing to the non-toxicity and cheapness of copper complexes. In this mini-review, the results in this field are summarized. We hope to stimulate other applications of these complexes in the preparation of coumarin derivatives.
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