甲基二苯基氧化膦

(2-hydroxy-2,2-diphenylethyl)diphenylphosphine oxide

Diphenyl-(2,2-diphenyl-2-hydroxy-aethyl)-methyl-phosphoniumjodid

1,1-二苯基丙酮

1-hydroxy-1,1-diphenylpropan-2-one