Ethyl α-l-sorboside

Ethyl l-sorboside, C₈H₁₆O₆, was prepared from the rare sugar l-sorbose, C₆H₁₂O₆, and crystallized. It was confirmed that ethyl l-sorboside formed α-pyran-ose with a ² C ₅ conformation. In the crystal, mol-ecules are linked by O-H⋯O hydrogen bonds, forming a three-dimensional network. The unit-cell volume of the title ethyl α-l-sorboside is 940.63 ų (Z = 4), which is about 194.69 ų (26.1%) bigger than that of l-sorbose [745.94 ų (Z = 4)].