5-Bromo-5-bromo­methyl-2-phen­oxy-1,3,2-dioxaphospho­rinan-2-one

In the title 1,3,2-dioxaphospho­rinane derivative, C(10)H(11)Br(2)O(4)P, the 1,3,2-dioxaphospho­rinane ring adopts a chair conformation, having the P=O bond equatorially oriented and the phen­oxy group axially oriented. The bromo substituent is in an axial position opposite to the phen­oxy group and the bromo­methyl group is in an equatorial position opposite to the P=O bond. In the crystal packing, mol­ecules are linked through weak C—H⋯O and C—H⋯Br inter­actions to form chains along the b axis. The chains are arranged into sheets parallel to the ab plane. In adjacent sheets, mol­ecules are arranged in an anti­parallel fashion. Inter­molecular C—H⋯π inter­actions are also observed.