3,4-dibromo-1-(2-bromoethyl)-7-oxabicyclo[4.1.0]heptane

1-(2'-hydroxyethyl)-1,4-cyclohexadiene

1-(2-bromoethyl)cyclohexa-1,4-diene

1-(2-bromoethyl)-7-oxabicyclo[4.1.0]hept-3-ene

4,5-dibromo-1-(2-bromoethyl)cyclohex-1-ene