ChemInform Abstract: Factor Analysis of Long Range Substituent Effects on 13C NMR Chemical Shifts and Target Factor Testing of Different Types of Substituent Parameters
Carbon-13 chemical shifts have been measured of para-substituted 3-phenyl propanoic acid methyl esters. The substituent-induced 13C shifts of the side chain were related to Hammett substituent effects by the dual substituent parameter method. The transmission of substituent effects and the factors that influence 13C shifts are discussed
Substituent effects on the formation of benzyl ions from ortho-methoxy substituted 1,1-diarylalkanes under electron ionization: correlations between the abundance of the process and the 13C-NMR chemical shifts of the neutral precursors