
Magnetic Resonance in Chemistry p. 665 - 670 (1988)
Update date:2022-08-31
Topics:
Katritzky, Alan R.
Sobiak, Stanislaw
Marson, Charles M.
The 13C spectra of nine novel and fifteen known derivatives YC(:X)Z with X = O or S are reported and compared with literature data.Two linear relationships between 13C=O and 13C=S are established depending on whether or not Y or Z is linked through an O atom to the C=X group.General equations for 13C=O and 13C=S in terms of the attached groups are also deduced.The 13C chemical shifts of n-butyl and n-octyl groups attached to the heteroatoms in this series of compounds are recorded and discussed.
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