48-bromo-octatetraconta-12,24,36-trienal

triphenylphosphoniomethylcyclo-octatetraene hexafluorophosphate

1-phenyl-4-(((triphenylphosphoranylidene)amino)methyl)azetidin-2-one

乙酰氯

2-methylpropylidene(triphenyl)-λ⁵-phosphane