3,4-dibromo-2,5-dimethylhexa-2,4-diene

2,5-二甲基-3-己炔-2,5-二醇

硫酸铜

1-chloro-5-methyl-hexa-2,4-diene

2-methyl-3-methylene-hept-6-en-4-yn-2-ol