4-(三苯磷基)丁烷-1-磺酸酯

triphenyl-[2-[(triphenyl-λ⁵-phosphanylidene)amino]phenyl]imino-λ⁵-phosphane

1-(3-chloropropyl)-3-cyclohexylurea

methyl 2-oxo-3-(triphenyl-λ⁵-phosphanylidene)propanoate

(3-methylphenyl)methyl-triphenylphosphanium