磷羧基甲酸三甲酯

2-methylcyclohepta-2,4,6-trien-1-one

P-丙基-膦酸二甲酯

ethyl 3-oxo-2-triphenylphosphoranylidenenon-4-ynoate

ethyl 3-oxo-5-phenyl-2-triphenylphosphoranylidenepent-4-ynoate