甲基自由基

(3,3-dimethylcyclohexen-1-yl)oxy-trimethylsilane

(Z)-5,5-dimethyl-2-phenylhex-2-en-4-one

2,2-dimethyl-5-phenylhex-4-en-3-one

4,4-dimethylnon-8-en-2-one