Research Article: 2,4,5-Triphenyl-1,3,2-dioxa­phospho­lan-2-one

Date Published: July 01, 2011

Publisher: International Union of Crystallography

Author(s): David B. Cordes, Guoxiong Hua, Alexandra M. Z. Slawin, J. Derek Woollins.


The dioxaphospho­lane ring in the title compound, C20H17O3P, adopts an envelope conformation about one of the ring carbons. The benzene rings of the compound do not form face-to-face π–π inter­actions, instead weak C—H⋯π inter­actions occur between adjacent mol­ecules. The methine H atoms on the dioxaphospho­lane ring form weak C—H⋯O hydrogen bonds to the oxide group of an adjacent mol­ecule.

Partial Text

For the synthesis of the title compound and isomeric forms, see: Ovchinnikov et al. (1979 ▶, 1995 ▶); Chauvin (1990 ▶). For related structures of dioxaphospho­lane oxides, see: Hoppe et al. (1985 ▶); Ananikov et al. (2010 ▶); Han et al. (2008 ▶).




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