4-methylpent-1-yn-3-ylselanylbenzene

trimethyl(3-phenylselanylprop-1-ynyl)silane

7-phenyl-3-phenylselanylhept-3-en-2-one

2-hydroxy-2-methyl-4-phenylselanylhept-4-en-3-one

2-phenylselanyl-1-trimethylsilylbut-2-en-1-one