Acta Cryst. (2004). E60, o2264-o2265  [ doi:10.1107/S1600536804028016 ]

7b-tert-Butyl-1a,2,5,6-tetrahydro-2-hydroxy-2-methyl-4H-oxireno[2,3-h]chromen-3(7bH)-one

C.-H. Mao, H.-B. Song, Q.-M. Wang, R.-Q. Huang, L. Chen and J. Shang

Abstract: The title compound, C₁₄H₂₀O₄, was obtained from the reaction of 8-tert-butyl-5-chloro-6-methylchroman with chromium trioxide. The pyran ring adopts a half-chair conformation, and the cyclohexene ring adopts a skew-boat conformation. In the crystal structure, the molecules are linked to form centrosymmetrically related hydrogen-bonded dimers.

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