5-phenyl-1,3-thiaselenole-2-thione

dimethyl 4-phenylselenophene-2,3-dicarboxylate

Methyl 3-(2-phenylethynylseleno)propenoate

2-benzylidene-4-phenyl[2H(1,3-diselenole)]

Dimethyl (2-phenylethynylseleno)butenedioate