Abstract

THIOSEMICARBAZONE SCHIFF BASES OBTAINED FROM THE BIOLOGICALLY POTENT HETEROCYCLICS: SYNTHESIS AND CHARACTERIZATION

Himabindu Mekala*, Mamatha Kasula, Rambabu Palabindela, Prabhakar Myadaraveni, Ramu Guda

ABSTRACT

All the chemicals used for this thesis work were purchased from sigma- Aldrich, TCI and Alfa Easer, all the solvents procured from SD fine and Finar with AR Dry Grade have been used without further purification. IR spectra were obtained from a Perkin–Elmer BX II spectrophotometer by using KBr discs and were reported in cm-1 units. UV–visible spectra were recorded using a Shimadzu-2600 spectrophotometer. The 1H, 13C NMR spectra were recorded with a Bruker 500 MHz Avenue Ultra shield photo spectrometer at 500 MHz, 125 MHz respectively, using TMS for 1H and 13C NMR, as references.

Keywords: TCI and Alfa Easer, Perkin–Elmer BX II spectrophotometer,1H, 13C NMR, TMS for 1H and 13C NMR.