tert-Butyl 2-(1H-imidazol-1-yl)acetate

In the title compound, C₉H₁₄N₂O₂, the imidazole ring and the acetate O—C=O plane make a dihedral angle of 80.54 (12)°. In the crystal, mol­ecules are connected via pairs of C—H...O hydrogen bonds, forming centrosymmetric dimers.

N,N′-{[Ethane-1,2-diylbis(­oxy)]bis­(ethane-2,1-di­yl)}bis­(4-methyl­benzene­sulfonamide)

The asymmetric unit of the title compound, C₂₀H₂₈N₂O₆S₂, contains one half-mol­ecule, related to the other half by a twofold rotation axis. The two aromatic rings of the mol­ecule make a dihedral angle of 50.91 (7)°. The O—CH₂—CH₂—O and N—CH₂—CH₂—O fragments both adopt gauche conformations, with torsion angles of 76.0 (4) and 70.4 (3)°, respectively. In the crystal, adjacent mol­ecules are linked through N—H...O hydrogen bonds into chains along the a-axis direction. The chains are further connected via C—H...O inter­actions into a two-dimensional supra­molecular network in the ac plane.