Acta Cryst. (2008). E64, o610-o611  [ doi:10.1107/S1600536808004728 ]

(±)-N-[4-Acetyl-5-methyl-5-(4-methylcyclohex-3-enyl)-4,5-dihydro-1,3,4-thiadiazol-2-yl]acetamide

T. Mohammed, N. Mazoir, J.-C. Daran, M. Berraho and A. Benharref

Abstract: The new title thiadiazole compound, C₁₄H₂₁N₃O₂S, was semi-synthesized starting from 1-(4-methylcyclohex-3-enyl)ethanone, a natural product isolated from Cedrus atlantica essential oil. The stereochemistry has been confirmed by single-crystal X-ray diffraction. The thiadiazoline ring is roughly planar, although it may be regarded as having a half-chair conformation. The cyclohexenyl ring has a half-chair conformation. The most interesting feature is the formation of a pseudo-ring formed by four molecules associated through N-HO hydrogen bonds around a fourfold inversion axis, forming an R₄⁴(28) motif.

Online 20 February 2008

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