Acta Crystallographica Section E

Structure Reports Online

Volume 70, Part 5 (May 2014)


organic compounds



su2708 scheme

Acta Cryst. (2014). E70, o561-o562    [ doi:10.1107/S1600536814007922 ]

Methyl 4-O-benzyl-[alpha]-L-rhamno­pyrano­side

R. Pendrill, L. Eriksson and G. Widmalm

Abstract: In the title compound, C14H20O5, an inter­mediate in the synthesis of oligosaccharides, the glycosidic [H-C-O-C(H3)] torsion angle [varphi]H is 52.3° and the exo-cyclic [H-C-O-C(H2)] torsion angle [theta]H is -11.7°. The hexa­pyran­ose ring has a chair conformation. In the crystal, mol­ecules are linked by O-H...O hydrogen bonds, forming chains propagating along [010]. Enclosed within the chains are R33(12) ring motifs involving three mol­ecules. The chains are linked via C-H...[pi] inter­actions, forming a three-dimensional network.

CCDC reference: 996312


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