3,5-Di-O-benzoyl-1,2-O-isopropylidene-α-d-ribo-hexos-3-ulo-1,4:3,6-difuranose
نویسندگان
چکیده
The title compound, C(23)H(22)O(8), is a binary benzoyl ester whose nucleus consists of a fused system made up of a methyl-enedi-oxy ring and two tetra-hydro-furan rings. One of the benzoyl ester groups is attached at the junction of the two tetra-hydro-furan rings. The other is attached to the outer tetra-furan ring. Both the benzoyl ester groups are in an axial conformation with respect to the outer tetrhydro-furan ring. In the crystal, mol-ecules are linked by two weak C-H⋯O hydrogen bonds, forming a chain running parallel to the a axis.
منابع مشابه
(Z)-1,2:5,6-Di-O-isopropylidene-α-d-ribo-hexofuranos-3-ulose O-benzyloxime
The title compound, C(19)H(25)NO(6), is a Z diastereomer in which the phenyl ring of the 3-benzyl-oxime substituent and the 5,6-O-isopropyl-idene acetal are both located on the Si-face of the C=N double bond. Inter-molecular C-H⋯O inter-actions result in helical chains along the b axis of the monoclinic unit cell.
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011