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Synthesis, Characterization, Spectroscopic Studies and Biological Evaluation of Schiff Bases Derived from 1-hydroxy-2-acetonapthanone

Overview
Journal Heliyon
Specialty Social Sciences
Date 2019 Nov 26
PMID 31763472
Citations 3
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Abstract

The four Schiff bases were synthesized by the condensation reaction of 1(1-hydroxynaphthalen-2-yl)ethanone, 1-(4-chloro-1hydroxynaphthalen-2-yl)ethanone and 1-(4-bromo-1-hydroxynaphthalen-2-yl)ethanone with propane-1,3-diamine and pentane-1,3-diamine. The structural analysis is done by UVvis., FT-IR, H NMR, C NMR, LCMS and elemental analyses. These compounds were assayed for antibacterial ( and activity and antioxidant ( and ) activity. The antibacterial and antioxidant activities of synthesized Schiff bases exhibited better degrees of inhibitory effects. Among these, Schiff base 2,2'-((propane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-1-ylidene))bis(4-chloronaphthalen-1-ol) exhibited excellent antibacterial activity with MICs of 0.12, 0.25, 0.5 and 1 mg/ml against and . Furthermore, two Schiff bases such as, 2,2'-((propane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-1-ylidene))bis(naphthalen-1-ol) and 2,2'-((pentane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-1-ylidene))bis(4-bromonaphthalen-1-ol) exhibited promising antioxidant activity.

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