STUDIES ON CARBON-13 NUCLEAR MAGNETIC ROSONANCE SPECTRA OF 1-NICOTINYL-4-ARYLTHIOSEMICARBAZIDES AND 3-(3-PYRIDYL)-4-ARYL-l, 2, 4-TRIAZOLINE-5-THIONES

Chinese Journal of Magnetic Resonance ›› 1989, Vol. 6 ›› Issue (4): 495-500.

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STUDIES ON CARBON-13 NUCLEAR MAGNETIC ROSONANCE SPECTRA OF 1-NICOTINYL-4-ARYLTHIOSEMICARBAZIDES AND 3-(3-PYRIDYL)-4-ARYL-l, 2, 4-TRIAZOLINE-5-THIONES

Zhang Ziyi¹, Liu Peiqi², Zhang Lixue³

1. Department of Chemistry, Lanzhou University, Lanzhou;
2. Analytical and Testing Center, Lanzhou University, Lanzhou;
3. Department of Chemistry, Wenzhou Teachers College, Wenzhou

Received:1988-09-10 Revised:1988-10-25 Published:1989-12-05 Online:2018-01-22

Abstract

Abstract: The carbon-13 nuclear magnetic resonance spectra of eight new compounds including 1-nicotinyl-4-phenylthiosemicarbazide and 3-(3-pyridyl)-4-phcnyl-1, 2, 4-triazoline-5-thione were recorded. The chemical shifts of various carbon resonances have been assigned on the basis of the application of proton broad band decoupling and off resonance decoupling techniques, the comparison of signal intensity, the calculation based on substituent effect, and comparison with the chemical shifts of the model compounds. The difference between thiosemicarbazides and 1, 2, 4-triazoline-5-thiones in ¹³C NMR was discussed. In addition, the data of the effect of substituent of hydrazide on the C-13 chemical shifts in 3-monosubstituted pyridines were obtained.

Key words: Thioscmicarbazides, 1, 2, 4-triazoles, subsliluent effect, Carbon-13 nuclear magnetic resonance

Zhang Ziyi, Liu Peiqi, Zhang Lixue. STUDIES ON CARBON-13 NUCLEAR MAGNETIC ROSONANCE SPECTRA OF 1-NICOTINYL-4-ARYLTHIOSEMICARBAZIDES AND 3-(3-PYRIDYL)-4-ARYL-l, 2, 4-TRIAZOLINE-5-THIONES[J]. Chinese Journal of Magnetic Resonance, 1989, 6(4): 495-500.

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STUDIES ON CARBON-13 NUCLEAR MAGNETIC ROSONANCE SPECTRA OF 1-NICOTINYL-4-ARYLTHIOSEMICARBAZIDES AND 3-(3-PYRIDYL)-4-ARYL-l, 2, 4-TRIAZOLINE-5-THIONES

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