Comparative study of the13C nuclear magnetic resonance shifts of carbonyl and thiocarbonyl compounds
作者:Alan R. Katritzky、Stanislaw Sobiak、Charles M. Marson
DOI:10.1002/mrc.1260260805
日期:1988.8
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 13CO and 13CS are established depending on whether or not Y or Z is linked through an O atom to the CX group. General equations for 13CO and 13CS 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.