Nucleophilic addition reactions of CL,8 -unsaturated acyl isothiocyanates with aromatic and heteroaromatic amines have been studied. Compound 12 was also prepared which afforded pyrazolo [l,5-a]-s-triazine, coumarine and pyrazolo [l,5-c]-as-triazine derivatives on treatment with 5% potassium hydroxide, salicylaldehyde and diazotis~d aminopyrazole respectively.
N M ABED ,A G A ELAGAMEY ,A F A HARB ,
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