Application of the additive increments method to the calculation of chemical shift of olefinic protons in aromatic olefines: Additive increments for para and meta substituents in the aromatic ring

Abstract

Additive increments for para and meta substituents in the aromatic ring were calculated on the basis of 332 examples of chemical shifts and were correlated with Hammett's constants. Examples of calculation of chemical shifts of olefinic protons in substituted aromatic olefines by means of the increments are given.