2-(6-methylhept-5-en-2-ylidene)propanedinitrile

alpha-环柠檬腈

2-(2-methyl-5-oxocyclopenten-1-yl)acetaldehyde

6,6-diethoxy-2-methylhept-2-ene

trimethyl((6-methylhepta-2,5-dien-2-yl)oxy)silane