Disulfide derivatives of thiosemicarbazones of 4-formyl-5-thiopyrazole
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- Uraev, A.I., Korobov, M.S., Popov, L.D. et al. Russ J Gen Chem (2017) 87: 252. doi:10.1134/S1070363217020165
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The reaction of 4-formyl-5-mercaptopyrazole with thiosemicarbazides in methanol has afforded novel disulfide derivatives of thiosemicarbazones, and their structure has been studied by NMR and IR spectroscopy. X-ray diffraction analysis of [5,5'-dithiobis(4-formyl-3-methyl-1-phenylpyrazole)]-4-allylthio-semicarbazone has shown that it exists as a dimer with two molecules linked via the disulfide S–S bridge between the heterocycles in the crystal.