Abstract
The α and β-diastereomers of 4,5-epoxy-cholestan-3-one were obtained by epoxidation of cholest-4-en-3-one with H2O2 in basic media. The α-diastereomer 2a shows a monoclinic crystal system with dimension of cell unit: a = 11.6088(15), b = 6.3272(8), c = 16.164(2) A; β = 94.040(11)° and trans A/B, B/C and C/D ring junctions and the β-diastereomer 2b has a orthorhombic crystal system with dimension of cell unit: a = 9.0542(4), b = 10.6737(5), c = 24.9723(9) A and cis A/B, trans B/C and trans C/D rings junctions. The crystal structures of 4,5-epoxy-5α-cholestan-3-one (2a) and 4,5-epoxy-5β-cholestan-3-one (2b) are described.
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