6-methyl-hepta-4,5-dienenitrile

4-methylbenzenesulfonic acid,5-methylhexa-3,4-dien-1-ol

2-甲基-3-丁炔-2-醇

3-甲基-1,2-丁二烯

1-tert-Butyldimethylsilyloxy-6-methyl-4,5-heptadiene