N-H...N Hydrogen Bonding in the Four Independent Molecules of (2S,4S,5R)-(-)-2-(1H-Imidazol-2-yl)-3,4-dimethyl-5-phenyl-1,3-oxazolidine, with C-H...[pi]_arene, C-H...O and C-H...[pi]_C=C Interactions

The title compound, C₁₄H₁₇N₃O, prepared from (1R,2S)-(-)-ephedrine, crystallizes in space group P2₁ with four molecules in the asymmetric unit. The molecules, in pairs, take part in intermolecular N-H...N hydrogen bonding between the imidazolyl rings, forming one-dimensional chains with alternating N...N distances of 2.866 (3)/2.883 (3) Å and 2.945 (3)/2.956 (3) Å. Interchain C_arene-H...[pi]_arene, C_arene-H...O and Csp³-H...[pi]_C=C interactions generate a three-dimensional network.

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