4.Seminar UR-UKM KE-7 2012

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SYNTHESIS AND STRUCTURAL STUDIES OF N-(HALOGENOCARBONOYL)-N'-(ARYL)THIOUREA
(2014-05-21) Abosadiya, Hamza M; Hasbullah, Siti Aishah; Yamin, Bohari M
The number of structure of carbonoylarylthiourea derivatives is increasing because of their potential in biological properties. The structural informations are important for the structureactivity relationship studies or rational drug design work. However, the thioureas containing halogen in the carbonoyl fragment is still very scarce. N-(3-chloropropionyl)-N'-(2- methylphenyl)thiourea(I) and N-(3-chloropropionyl)-N'-(4-methylphenyl)thiourea(II) were synthesized and characterized by FTIR and NMR spectroscopic techniques. The compound (I) was obtained as twinned crystal. The X-ray study showed that the asymmetric unit consists two independent molecules. The trans–cis configuration of the chloropropionyl and methyl phenyl groups respectively, against the thiono about their C-N bonds is maintained