Synthesis and antimicrobial activity of N-[5-(3-pyridyl)-1,3,4-thiadiazol-2-yl]-N′-aroyl urea;

Twelve aroyl urea compounds have been studied using density functional theory method.

Synthesis and characterization of acyl pyrazole carbonyl urea containing trifluoromethyl;

Thirteen new aroyl ureas were synthesized by the reaction of 2-amino-5-(1o-chlorophenoxyethyl)-1,3,4-thiodiazole with aroyl isocyanates,and their structures were confirmend by IR,~(1)H NMR and elemental(analysis).

Thirteen N-(1,3,4-thiodiazol-2-y1)-N′-aroyl ureas were synthesize d by the reaction of aroyl iso-cyanates with 2-amino-1,3,4-thiodiazole i n yields of 54.

Synthesis,Crystal Structure and Biological Activity of N-(5-Trifluoromethyl-1,3,4-thiadiazol-2-yl)-N'-aroylureas;

Synthesis and Biological Activity of N-[5-(Pyrid-4-yl)-1,3,4-thiadiazol-2-yl]-N'-aroylureas;

Study on the cyclic reaction between 1-benzoyl-3-arylthiourea and hydrazine hydrate;

2,5-Disubstituted-1,3,4-triazole derivatives were prepared by the reaction of hydrazine hydrate with 1-benzoyl-3-arylthioureas obtained from the reaction of benzoyl chloride, potassium thiocyanate and aniline, and their structures were confirmed by IR, 1H NMR and HRMS spectra.

In this thesis, 1-aryl-3-benzoyl-2-thioxoimidazolidin-4-one, 1-aryl-3-benzoyl-5-chloro-2-thioxoimidazolidin-4-one and 1-ary-2-thioxoimidazoli-din-4,5-dione were prepared by the reaction of 1-benzoyl-3-arylthiourea with chloroacetyl chloride, dichloroacetyl chloride, oxalyl dichloride.