Paper Type |
Contributed Paper |
Title |
Synthesis, Characterization and Antioxidant Activity of 2-Halobenzoyl Thiourea bearing α- and β-Alanine |
Author |
Nurziana Ngah*, Nor Azanita Mohamed, and Deny Susanti Darnis |
Email |
nurziana@iium.edu.my |
Abstract: Six new 2-halobenzoylthiourea compounds bearing α- and β-alanine have been successfully synthesized and characterized using CHNS microelemental analysis and spectroscopic methods including FTIR, UV-Vis and NMR. Microelemental analysis data of the compounds were in agreement with the theoretical values. The FTIR spectra showed the presence of important bands of the compounds while the 1H-NMR and 13C-NMR exhibited the expected chemical shifts. The compounds exerted weak antioxidant activity in DPPH scavenging test and moderate to good activity in β-carotene bleaching test. The inclusion of halogen atoms has facilitated the released of hydrogen atoms and introduction of α- and β-alanine have increased the β-carotene bleaching and DPPH scavenging activities of the compounds.
|
|
Start & End Page |
578 - 584 |
Received Date |
2014-07-14 |
Revised Date |
|
Accepted Date |
2014-10-13 |
Full Text |
Download |
Keyword |
2-halobenzoyl thiourea, alanine, antioxidant |
Volume |
Vol.43 No.3 (APRIL 2016) |
DOI |
|
Citation |
Ngah N., Mohamed N.A. and Darnis D.S., Synthesis, Characterization and Antioxidant Activity of 2-Halobenzoyl Thiourea bearing α- and β-Alanine, Chiang Mai J. Sci., 2016; 43(3): 578-584. |
SDGs |
|
View:617 Download:199 |