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Compounds related to thiosemicarbazide Oxadiazoles and thiadiazoles synthesis and spectroscopic studies | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 12, Issue 1, 2007, Pages 17-21 | ||
| Author | ||
| Ahmad SH. Hamad | ||
| Abstract | ||
| Several substituted cinnamoyl thiosemicarbazide and substituted alpha-phenyl cinnamoyl thiosemicarbazide are cyclized by the action of sodium hypobromide to give 2-amino ( -5-sub. styryl )-1, 3, 4-oxadiazole. Some of the prepared thiosemicarbazide derivatives were converted to the corresponding. 2-amino-5-sub. styryl-1, 3, 4-thiadiazole by boiling with polyphosphoric acid. Styryl and p-methoxy styryl-1, 3, 4-oxadiazole -2- thiol have been prepared by the reaction of corresponding hydrazide with carbon disulfide in the presence of ethanolic potassium hydroxide. These compounds were characterized by IR. 'H-NMR and elemental analysis | ||
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