The Phospha–Michael addition product {(t-BuNH)P(μ-N-t-Bu)2P(=N-t-Bu)—C(=CH2)CH(p-CH3O—C6H4)-P(O)[(OCH2C(CH3)2CH2O)]}

摘要

The title compound, 2-{2-[1,3-di-tert-butyl-4-(tert-butyl­amino)-2-(tert-butyl­imino)-1,3,2λ5,4-diaza­diphosphetidin-2-yl]-1-(4-meth­oxy­phen­yl)prop-2-en-1-yl}-5,5-dimethyl-1,3,2λ5-dioxaphosphinan-2-one, C31H57N4O4P3, was synthesized from the Phospha–Michael addition reaction of cyclo­diphos­pha­zane [(t-BuNH)P(μ-Nt-Bu)]2 and allenyl­phospho­nate [(OCH2C(CH3)2CH2O)P(O)C(p-CH3O—C6H4)=C=CH2]. In the crystal, N—H⋯O and C—H⋯O hydrogen bonds link the mol­ecules. The structure exhibits pseudosymmetry but attempts to solve it in a higher (monoclinic) space group were unsuccessful.