tert-Butyl 2-benzoyl-2-methyl-propanoate.

The title compound, C(15)H(20)O(3), is bent with a dihedral angle of 67.28 (9)° between the mean planes of the phenyl ring and a group encompassing the ester functionality (O=C-O-C). In the crystal, mol-ecules related by inversion symmetry are connected by weak C-H⋯O inter-actions into infinite chains. On one side of the mol-ecule there are two adjacent inter-actions between neighbouring mol-ecules involving the H atoms of methyl groups from the dimethyl groups and the O atoms of the ketone; on the other side, there are also two inter-actions to another adjacent mol-ecule involving the H atoms on the phenyl rings and the carbonyl O atoms of the ester functionality.