The trans 1,2-phenylseleno acetate, acetamide, alcohol and nitrile of cyclohexane may be oxidized at selenium by halogens and the phenylseleno moiety displaced by halide to give high yields of 1,2 halide-containing products with cis geometry.
环己烷的反式1,2-苯基
硒代
乙酸酯,乙酰胺,醇和腈可在
硒中被卤素氧化,苯基
硒代部分被卤化物取代,从而获得高收率的具有顺式几何构型的含1,2卤化物的产物。