triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide

triphenyl((2-thioxobenzo[d]oxazol-3(2H)-yl)methyl)phosphonium chloride

(5-iodo-2-pyridinyl)triphenylphosphonium iodide

diethoxyoxophosphoranesulfenyl chloride

bis(diethoxyphosphinyl) disulfide