1,1,6,6-tetrakis(diphenylphosphoryl)hexane-1,6-diol

1,1,7,7-tetrakis(diphenylphosphoryl)heptane-1,7-diol

1,1,8,8-tetrakis(diphenylphosphoryl)octane-1,8-diol

1,1-bis(diphenylphosphoryl)propan-1-ol

4-diphenylphosphorylphenol