2,3-二氯-5-(二氯甲基亚基)环戊-2-烯-1,4-二酮

1,2,3,3,5,5-六氯-4-(二氯甲基亚基)环戊烯

2-acetyl-4,5-dichlorocyclopent-4-ene-1,3-dione

4,5-dichloro-2-diphenoxymethylene-4-cylopentene-1,3-dione

(E)-4,5-dichloro-2-(2,3-dichloro-1,1,3-trimethoxyallyl)cyclopent-4-ene-1,3-dione