الفهرس 
arabic summary
llettods of Preparation of " ~ "-unsaturateOnly 14 pages are availabe for public view
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Abstract
A series of sulphonamides (IIa-g) was prepared by the interaction of p-acetyl benzene sulphonyl chloride (I) with various primary aromatic and secondary amines.
Compound (I) readily obtained by converting the amino group of p-aminoacetiophenone into sulphonyl chloride group. The interaction of (IIa-g) with a number of aromatic aldehydes yielded the corresponding chalcones (IIIa-j). These new chalcones containing the sulphonamide group, when interacted with hydrazine hydrate, phenyl hydrazine, thiourea or malononitrile, the corresponding pyrazolines (IVa-j) & (Va-i), pyrimidinethiones (VIa-i) and pyranes (VIIIa-i) were resulted respectively.
For the sake of ameliorating the biological activity, the acetyl group of the sulphonamides (IIa-g) was converted to its oxime (IXa-g), carbonate oxime (xa-g), thiosemi-carbazone (XIa-g) and semicarbazones (XIIa-g).
On the other hand, when the semicarbazones (XIIa-g) were subjected to oxidative cyclization by thionyl chloride or selenium dioxide, the corrtesponding 1,2,3-thiadiazoles (XIIIa-g) 1,2,3-selenadiazoles (XIVa-g) were obtained.