2-乙基-1,3-丁二烯

(E)-3,6,7-trimethylenenon-4-ene

(4E,6E)-5-(but-1-en-2-yl)-2-methyl-8-methylenedeca-4,6-diene

3,7-dimethyl-3,4-octadiene

(Z)-2-methyl-6-methyleneoct-4-ene