Synthesis of some N-Aryl- p-Toluene Sulfonamide Compounds

A number of acetylenic amine (4a-e) were synthesis from propagyl p-(p-toluene sulfonamido) benzoate (3) with secondary amines via Mannich reaction. The carbonyl isothiocynate compound (5) was synthesized from the reaction of the corresponding benzoyl chloride with potassium thiocynate. This compound was converted to the corresponding thiourea compounds (6a-e), thiocarbomate (7a-d) and (8a-e) by their reaction with different amines, alcohols and phenols respectively. The structure of the synthesized compounds have been elucidated by their physical and spectral methods.