In this paper

tung oil-based derivatives were prepared using UV light as the energy source and the inorganic acid as the catalyst. First

methyl eleostearate was prepared via the transesterification reaction between tung oil and methanol

and then reacted with resorcinol to synthesize tung oil-based derivatives (ME-RES) by Friedel-Crafts alkylation reaction under UV light. The structure of the product was also characterized and analyzed by Fourier transform infrared (FT-IR) spectroscopy

ultraviolet and visible (UV-Vis) spectroscopy

nuclear magnetic resonance (NMR) spectroscopy and high performance liquid chromatography-mass spectroscopy (HPLC-MS). Finally

the influence of factors such as catalyst and solvent on the reaction was investigated through a single factor. The research results showed that concentrated sulfuric acid could catalyze the alkylation reaction of methyl eleostearate and resorcinol under the condition of UV light

and the suitable concentration range was 80%-90%

while the ordinary proton acids such as H

3

PO

4

CH

3

COOH could not catalyze the alkylation reaction under UV light. In addition

the research have found that photochemical reactions have the advantages of short reaction time

high yield

low energy consumption

and environmental protection.