3-Oxo-endo-5-phenylseleno-2-oxabicyclo[2.2.2]oct-7-en-exo-5-carbonsaeure-ethylester

(9ci)-5-氧代-1-环戊烯-1-羧酸甲酯

benzylselanylbenzene

3-chloro-2-phenylselanylbicyclo[2.2.1]heptan-5-one

tert-butylselanylbenzene