Thiosemicarbazone derivatives are of special importance because of their versatile biological and pharmacological activities. Thiosemicarbazides are potent intermediates for the synthesis of pharmaceutical and bioactive materials and thus, they are used extensively in the field of medicinal chemistry.

Thiosemicarbazide is generally condensed with aldehydes or ketones to synthesize wide range of thiosemicarbazones. It can be used to build a variety of heterocycles and bioactive molecules such as thiosemicarbazides, derivatives of thienopyrimidine urea and 2-amino thiadiazole.

Thiosemicarbazides are potent intermediates for the synthesis of pharmaceutical and bioactive materials and thus, they are used extensively in the field of medicinal chemistry. The imine bond (-N=CH-) in this compounds are useful in organic synthesis, in particular for the preparation of heterocycles and non-natural β-aminoacids. In this paper the synthesis of some new thiosemicarbazide derivatives by condensation reaction of various aldehydes or ketones with 4-phenylthiosemicarbazide or thiosemicarbazide is reported.

THIOSEMICARBAZIDE FOR SYNTHESIS