Some 5-formylvanillin functional derivatives were synthesized in order
to obtain new potential biological activity compounds. In the 5-formy
lvanillin reaction with equimolecular quantities of aminoesters, hydro
xylamine, semicarbazide and thiosemicarbazide, corresponding monofunct
ional derivatives were got. The compounds were characterized by thin l
ayer chromatography and elementary analysis. The biological tests done
on synthesized compounds proves that only the 5-formylvanillin monoxi
me and dioxime have antimicrobian activity.