【Abstract】Skin will be damged when exposed to high-energy ultraviolet ray for a long time, even it would result in skin cancer if skin is radiated seriously.With the rapid development of industry, the ozone layer was badly destroyed, so that more and more ultraviolet ray could cross through the aerosphere and arrived in the ground, and this has a bad influence on the human. Based on this, it is of great significance to develop an ultraviolet ray absorber which is anti-ultraviolet ray and could be applied ...

【Key words】 Dibenzoylmethane and its derivatives; Claissen condensation; Microwave-assisted; Ultraviolet protction;