A Fluorescence Study of New Angular Polycyclic Blue Light-Emitting pyrazolo[3,4-<Emphasis Type="Italic">h</Emphasis>][1,6]naphthyridine and their Interaction with Bovine Serum Albumin (BSA) |
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Authors: | Sandeep R Patil Deepak P Shelar Ramhari V Rote Madhukar N Jachak |
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Institution: | (1) Organic Chemistry Research Center, Department of Chemistry, K. T. H. M. College, Gangapur Road, Nashik, 422 002, MS, India;(2) University of Pune, Pune, India; |
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Abstract: | The blue light-emitting pyrazolo3,4-h]1,6]naphthyridines has been synthesized by Friedländer condensation of 4-amino-3-(4-phenyl)-1-phenyl-1H-pyrazolo3,4-b]pyridine-5-carbaldehyde (o-aminoaldehyde) 1 with different cyclic ketones and 1,3-diketones. The synthesized angular polycyclic naphthyridine derivatives were studied for Semi-empirical, thermal, UV–vis and fluorescence spectroscopic properties on binding with bovin serum albumin (BSA). These fluorescence properties together with the neutral, hydrophobic nature of these compounds make these fluorophores good fluorescence probe for studying the micropolarity of proteins like BSA and in general the ligand-protein interactions. All of them displays bright absorption at 394 nm &; emission in visible region (491 nm). Quantum yields of all synthesized compounds were calculated. |
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