3-(triphenyl-λ⁵-phosphanylidene)-[1,3]dioxolo[4,5-g]cinnolin-4-one

3-phenylselanylbut-1-enylselanylbenzene

chloromethyl(triphenyl)phosphanium,bromide

甲基三苯基溴化膦

Dichlormethyl-triphenyl-phosphonium-bromid