Synthesis of Some Peracetylated Glucopyranosyi Thiosemicarbazones of Substituted 4-Formylcoumarins

摘要

Some substituted 4-formylcoumarins were prepared by oxidation of 4-corresponding formylcoumarins using SeO2. These aldehydes were converted to thiosemicarbazones by condensation reaction with tetra-O-acetyl-β-D-glucopyranosyl thiosemicarbazide usingmicrowave-assisted heating method. The synthesized compounds were characterized by FT-IR and ~1H NMR, ~(13)C NMR and mass spectral studies.