2-(2,4-Ditert-butylphenoxy)-5,5-dimethyl-1,3,2-dioxaphosphorinane

2-[2,4-bis(tert-butyl)phenoxy]-5,5-dimethyl-1,3,2-dioxaphosphorinane

2-[2,4-Bis(1,1-dimethylethyl)phenoxy]-5,5-dimethyl-1,3,2-dioxaphosphorinane