Synthesis and X-ray structure of trimethyl[2,4,6-tri(1,1-dimethylethyl)benzene] 1,3,5-tricarboxylate

The crystal structure of the fully substituted benzene compound, trimethyl-[2,4,6-tri(1,1-dimethylethyl)benzene] 1,3,5-tricarboxylate C 24 H 36 O 6 has been determined at 298 K and refined to R = 0.054 for 2201 observed reflections. Crystals are monoclinic, space group P 2 1 / n with Z = 4 in a cell of dimensions a = 10.910(4), b = 22.186(8), c = 10.518(3) Å and β = 115.58(2)°. The benzene ring is nonplanar while the angles about the ring are also distorted, [mean 122.1(3)° and 116.0(3)° about the ester and t -butyl groups respectively].