8-bromo-1,8-dimethyl-6-(4-methylphenyl)bicyclo[2.2.2]oct-5-en-2-one 、
4-bromo-1,5-dimethyl-7-(4-methylphenyl)bicyclo[3.2.1]oct-6-en-2-one 、
2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile 、
三正丁基氢锡 生成 1,5-dimethyl-6-(4-methylphenyl)tricyclo[3.2.1.02,7]octan-4-one