Synthesis, characterization and antioxidant activity of 1,3,4-oxadiazoles incorporating an indole moiety

In this project, an indole ester, carboxyl hydrazide and four new 1,3,4-oxadiazoles derivatives have been successfully synthesized and characterized. The four new 1,3,4-oxadiazoles derivatives were synthesized by the reaction of carboxyl hydrazide and benzoic acid derivatives which being named as JL...

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Bibliographic Details
Main Author: Chong, Jien Lee
Format: Final Year Project / Dissertation / Thesis
Published: 2019
Subjects:
Online Access:http://eprints.utar.edu.my/3958/
http://eprints.utar.edu.my/3958/1/fyp_CE_2019_CJL.pdf
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Summary:In this project, an indole ester, carboxyl hydrazide and four new 1,3,4-oxadiazoles derivatives have been successfully synthesized and characterized. The four new 1,3,4-oxadiazoles derivatives were synthesized by the reaction of carboxyl hydrazide and benzoic acid derivatives which being named as JL1, JL2 JL3 and JL4 respectively. The structures of carboxyl hydrazide and 1,3,4-oxadiazole derivatives (JL1-JL4) were characterized by 1H NMR, 13C NMR, DEPT, HMQC, HMBC, and IR spectroscopic. The antioxidant activity of carboxyl hydrazide and 1,3,4-oxadiazole derivatives were evaluated by using 2,2-diphenyl-2-picryhydrazyl hydrate (DDPH) radical scavenging assay where the carboxyl hydrazide and 1,3,4- oxadiazole showed weak antioxidant activity.