4,5-dichloro-1-(2-methyl-1,3-dioxolan-2-yl)cyclohexene-3,6-dione

2-acetyl-5,6-dichloro-1,4-benzoquinone

2-acetyl-5,6-dichlorohydroquinone

Acetic acid 4-acetoxy-6-acetyl-2,3-dichloro-phenyl ester

3-acetyl-1,1a-dichlorooctahydro-2H-3,5,1-(epiethane[1,1,2]triyl)cyclobuta[cd]pentalene-2,7-dione