9,10-dichloro-11,12,13,14-tetrahydro-9,10[1',4']-benzenoanthracene

双环[2.2.2]辛-5-烯-2,3-二羧酸酐

2,3-dithiabicyclo[2.2.2]oct-5-ene

2-环己烯-1-甲腈

bicyclo[2.2.2]oct-5-ene-2,2,3,3-tetracarbonitrile