1-diphenylphosphorylbutan-2-one

[cyclohexen-1-ylmethyl(phenyl)phosphoryl]benzene

benzoic acid,3-diphenylphosphorylpropan-1-ol

3-diphenylphosphoryl-6-phenylhex-5-en-2-one

2-diphenylphosphoryl-1,5-diphenylpent-4-en-1-one