O-(tert-Butyldimethylsilyl)tris(O-4-methylphenylsulfonyl)pentaerythritol

2-Methyl-3-[(4-methyl-phen-yl)sulfon-yl-oxy]-2-{[(4-methyl-phen-yl)sulfon-yloxy]meth-yl}propyl 4-methyl-benzene-sulfonate

The title mol­ecule, C₂₆H₃₀O₉S₃, adopts an extended conformation whereby two approximately parallel benzene rings [dihedral angle = 8.32 (10)°] are orientated in opposite directions along the pseudo-threefold axis through the central quaternary C atom, while a third ring occupies a position mid-way and face-on to these rings [dihedral angles = 82.28 (10) and 78.81 (7)°]. The crystal packing is dominated by C—H⋯O contacts and π–π inter­actions [ring centroid distance = 3.6902 (12) Å].

Tetra-O-4-methylphenylsulfonylpentaerythritol

In the title mol­ecule (systematic name: methane­tetra­yltetra­methyl­ene tetra-p-toluene­sulfonate), C₃₃H₃₆O₁₂S₄, the central C atom and the S atoms exhibit distorted tetra­hedral configurations. The aromatic rings in opposite arms are nearly parallel to each other, with a dihedral angle of 10.26 (8) or 3.45 (9)°. The mol­ecules are linked into a two-dimensional network parallel to the bc plane by weak C—H⋯O hydrogen bonds, π–π [centroid–centroid distance = 3.5806 (12) Å] and S—O⋯π [O⋯centroid = 3.1455 (15) Å and S—O⋯centroid = 122.41 (7)°] inter­molecular inter­actions. Intramolecular C—H⋯O hydrogen bonds are also present.