Peculiarities of NMR 13C spectra of benzoic acid and saturated alkylbenzoates. I. Chemical shift of benzoyl fragment hydrocarbon atoms
It has been shown that chemical shift of 5 types of carbon nuclei of benzoyl fragment in saturated alkylbenzoates depends upon alkyl radical degree of branching near α-carbon atom of alkoxyl group. Typical values of chemical shifts of five nuclei for primary, secondary and tertiary alkylbenzoates have been admitted