5,8-diacetoxy-6,7-dichloro-1,4-dihydro-naphthalene

2,3-dichloro-4H-spiro[naphthalene-1,2'-oxirane]-4-one

乙酸酐

2,3,4a,8a-tetrachloro-(4ar,8ac)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

二氯萘醌