抄録
High resolution 13C-NMR spectra of maleic anhydride adduct to methyl trans-9, trans-11-octadecadienoate (mp 72.473.2) were obtained by Fourier transform techniques. From the analyses of the spectra, the maleic anhydride adduct was affirmed to be methyl 8- (2, 3-dicarboxylic cyclic anhydride-4-hexyl-5-cyclohexene-1-yl) octanoate. Furthermore, the 13C chemical shifts of the adduct was obtained by the assignment of the signals and the 13C-H spin-spin coupling constants were also determined from the proton coupling spectrum.