ethyl 2-diazo-3-(2,3,4,5-tetrafluorophenyl)-3-oxopropionate

α-(6-furazano[3,4-b]quinoxalinyl)-α-ethoxycarbonylmethylenetriphenylphosphorane

[双(三氟乙酰氧基)碘]苯

炔丙基三苯基溴化膦

(methylthio)triphenylphosphonium trifluoromethanesulfonate