2-(5,5-dimethyl-4,6-dihydrocyclopenta[d][1,3]diselenol-2-ylidene)-5,5-dimethyl-4,6-dihydrocyclopenta[d][1,3]diselenole 、
2,2'-(2,3-Dimethylcyclohexa-2,5-diene-1,4-diylidene)dipropanedinitrile 生成 2-[4-(dicyanomethylidene)-2,3-dimethylcyclohexa-2,5-dien-1-ylidene]propanedinitrile;2-(5,5-dimethyl-4,6-dihydrocyclopenta[d][1,3]diselenol-2-ylidene)-5,5-dimethyl-4,6-dihydrocyclopenta[d][1,3]diselenole