1-O-Acetyl-3,4,6-tri-O-benzyl-2-C-bromomethyl-2-deoxy-α-d-glucopyranose
نویسندگان
چکیده
In the title compound, C30H33BrO6, the pyran-ose ring adopts a chair conformation. Two of the O-benzyl phenyl rings lie almost perpendicular to C/C/C/O plane formed by the ring atoms not attached to these O-benzyl phenyl rings, and form dihedral angles of 85.1 (2) and 64.6 (2)°, while the third O-benzyl phenyl ring is twisted so that it makes a dihedral angle 34.9 (2)° to this C/C/C/O plane. This twist is ascribed to the formation of an S(8) loop stabilized by a weak intra-molecular C-H⋯O hydrogen bond.
منابع مشابه
1,5-Anhydro-2-deoxy-1,2-C-dichloromethylene-3,4,6-tri-O-(4-methoxybenzyl)-d-glycero-d-gulo-hexitol
The pyranosyl ring in the title compound, C(31)H(34)Cl(2)O(7), adopts a twist-boat conformation. The 4-meth-oxy-benzyl groups are located in equatorial positions with the meth-oxy groups nearly coplanar with their respective rings [dihedral angles of 0.2 (3) and 9.4 (2)°]. The aromatic rings adopt orientations enabling them to participate in C-H⋯π inter-actions with neighboring meth-oxy groups....
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