Thiobenzophenone, obtained from benzophenone, undergo 1 , 4-cycloaddition reactionswith myreene at rcom temperature.
由二苯甲酮合成二苯甲硫酮，再使它与月佳烯发生环加成反应，合成了两种不饱和环状硫醚，总产率７４。
