Investigation of Phosphine Ligand Effect on Tunable Optical Property of Novel Coumarin‐Triphenyliminophosphorane Fluorophores
Sign Up to like & getrecommendations! Published in 2025 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.202500369
Abstract: We report the synthesis and investigation of the photophysical properties of a series of coumarin‐triphenyliminophosphorane (TPIPP) derivatives containing an electron‐withdrawing trifluoromethyl ketone (TFMK) group at the C‐3 position. The concept of nonhydrolytic Staudinger reaction (NSR)… read more here.
Keywords: effect; investigation; coumarin; coumarin triphenyliminophosphorane ... See more keywords
Aggregation‐Induced Emission in Chitosan/7‐Diethylamino‐4‐Methyl Coumarin Composite System for Optoelectronic Applications
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DOI: 10.1002/app.57344
Abstract: The coumarin derivatives are documented as exceptional luminophores. However, using them in devices directly has posed challenges due to photodegradation. Herein, the environmentally benign matrix chitosan, with its excellent film‐forming nature, has been taken as… read more here.
Keywords: emission; coumarin; methyl coumarin; chitosan ... See more keywords
Synthesis and Vasorelaxant Activity of Nitrate−Coumarin Derivatives
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DOI: 10.1002/cmdc.202200476
Abstract: Due to the need for new chemical entities for cardiovascular diseases, we have synthesized a new series of nitrate−coumarins and evaluated their vasorelaxant activity in contraction‐relaxation studies using rat aorta rings precontracted with phenylephrine or… read more here.
Keywords: nitrate; coumarin; activity nitrate; vasorelaxant activity ... See more keywords
Exploring Novel Coumarin‐Tethered Bis‐Triazoles: Apoptosis Induction in Human Pancreatic Cancer Cells, Antimicrobial Effects, and Molecular Modelling Investigations
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DOI: 10.1002/cmdc.202400297
Abstract: In the present study, we identified that two representative compounds (7 c and 9 f) of our newly synthesized coumarin‐tagged bis‐triazoles induced apoptosis in human pancreatic cells (PANC‐1) by caspase 3/7mediated pathway. Both 7 c and 9 f (IC50=7.15±1.19… read more here.
Keywords: cancer; human pancreatic; coumarin; bis triazoles ... See more keywords
Nanoarchitectonics with Positionally Isomeric Coumarin Carbamates: Structure-Gelation Study, F- Recognition, Dye Removal and Excellent Oil-Spill Recovery.
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DOI: 10.1002/cplu.202200270
Abstract: Coumarin carbamates with cholesteryl group 1 and 2 have been designed, synthesized and characterized. The isomeric compounds show different gelation behaviors in organic solvents such as toluene and CH3 CN. Rheological studies reveal the different… read more here.
Keywords: spill recovery; gelation; coumarin; oil spill ... See more keywords
Mono- and Dinuclear Gold(I) Coumarin Complexes: Luminescence Studies and Singlet Oxygen Production.
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DOI: 10.1002/cplu.202300020
Abstract: The 4-(thiolmethyl)-7-(diethylamino)-2H-chromen-2-one ligand has been synthesized and used as chromophore in several mono- and dinuclear gold(I) compounds that contain a phosphane at the second coordination position. Four final products were able to obtain in pure… read more here.
Keywords: dinuclear gold; coumarin; mono dinuclear; gold ... See more keywords
Reaction Course Dependent Regiospecific Transformation of 4‐Azido‐Coumarin into Coumarin C3‐C4 Fused Imidazole and 5‐Substituted‐1,4‐Benzodiazepine Scaffolds
Sign Up to like & getrecommendations! Published in 2024 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.202400575
Abstract: Herein, we report an efficient route for coumarin C3‐C4 fused imidazole scaffolds via indium chloride‐mediated single‐step transformation of 4‐azido‐coumarin with amines/aldehydes and coumarin C3‐C4 fused 5‐substituted‐1,4‐benzodiazepine scaffolds with 1,2‐azide‐nitrogen migration through two‐step sequential synthesis via the transitory intermediacy… read more here.
Keywords: azido coumarin; fused imidazole; coumarin fused; coumarin ... See more keywords
An Efficient One-Pot Synthesis of New Coumarin Derivatives as Potent Anticancer Agents under Microwave Irradiation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Heterocyclic Chemistry"
DOI: 10.1002/jhet.2975
Abstract: An efficient and rapid synthesis of coumarin derivatives was accomplished via reactions of 3-(3-(4-methoxyphenyl)acryloyl)-2H-chromen-2-one (3) with different carbon nucleophiles such as ethyl acetoacetate, ethyl cyanoacetate, malononitrile, and ethyl benzoylacetate via conventional heating and microwave irradiation… read more here.
Keywords: microwave irradiation; coumarin; efficient one; coumarin derivatives ... See more keywords
Photoreversibility and Biocompatibility of Polydimethylsiloxane-Coumarin as Adjustable Intraocular Lens Material.
Sign Up to like & getrecommendations! Published in 2017 at "Macromolecular bioscience"
DOI: 10.1002/mabi.201600495
Abstract: Polydimethylsiloxane (PDMS) constitutes an interesting material for a variety of biomedical applications, especially as intraocular lenses (IOLs), for its excellent transparency. In this work, a photoreversible PDMS-coumarin network, whose shape and properties can be adjusted… read more here.
Keywords: coumarin; polydimethylsiloxane coumarin; biocompatibility polydimethylsiloxane; photoreversibility biocompatibility ... See more keywords
The mechanism of coumarin inhibits germination of ryegrass (Lolium perenne) and its application as coumarin-carbon dots nanocomposites.
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DOI: 10.1002/ps.7397
Abstract: BACKGROUND As an important plant allelochemical, coumarin can effectively inhibit the germination of various seeds. However, little is known about the mechanism of coumarin on weed seed germination. Moreover, the herbicidal activity of coumarin is… read more here.
Keywords: ryegrass; coumarin; activity; seed ... See more keywords
A detailed comparative study on electrical and photovoltaic characteristics of Al/p-Si photodiodes with coumarin-doped PVA interfacial layer: the effect of doping concentration
Sign Up to like & getrecommendations! Published in 2019 at "Polymer Bulletin"
DOI: 10.1007/s00289-019-02704-3
Abstract: In this study, three different poly(vinyl alcohol) (PVA) films doped with weight percentages of 0.05, 0.10 and 0.20 coumarin were coated on p-Si wafer via spin-coating method for the purpose of investigating the interaction of… read more here.
Keywords: coumarin; doped pva; study; coumarin doped ... See more keywords