Abstract
Cyclic monomer fraction (β-CMF) was obtained from methyl β-eleostearate heated at 250°C for 10 hour under an inert atmosphere.
The composition of β-CMF was identified by comparing its gas chromatogram with those of the synthesized C18 cyclic fatty acid esters.
Consequently, a few cyclohexyl compounds, e.g., methyl 8- (2-η-butyl cyclohexyl) η-octanoate, were find out as small peaks on earlier retention time of the gas chromatogram.
These results supported that the aromatic compounds were derived from the cyclohexadiene systems by disproportionaion reaction.
