Benzene-1,3,5-triyl tris­(2,2-dimethyl­propanoate)

In the title compound, C(21)H(30)O(6), the three acet­oxy groups are essentially planar with their normals rotated by −57.75 (4), −62.36 (4) and 63.36 (4)° from the normal to the mean plane of the C(6) ring. The arrangement of carbonyl groups around the ring is of two groups ‘up’ and one ‘down’, and the propeller-style arrangement of substituent groups is spoiled with the plane of the ‘down’ group twisted in the opposite direction; all the C(ring)—O—C—CMe(3 )conformations are trans. In the crystal, aromatic π–π stacking occurs [centroid–centroid separation = 3.320 (1) Å]; the other main inter­molecular inter­action is a C—H⋯π-ring contact on the opposing side from the overlapped ring pairing; there are no short C—H⋯O contacts.