Thiosemicarbazones are an important pharmacophore that gives biological activity to chemical molecules, which is why these compounds are of great interest in the pharmaceutical industry. During research on the possibility of obtaining alpha-aminotiosemicarbazones by reacting alpha-aminoketones with thiosemicarbazide, the phenomenon of rearrangement of the thiosemicarbazide group with the cleavage of the appropriate amine and the formation of a neighboring hydroxyl group was observed. This publication describes this reaction as a new method for obtaining hydroxy-thiosemicarbazone derivatives, which may result in the future development of a number of new thiosemicarbazone derivatives with significant biological properties of particular interest to the pharmaceutical industry.
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