Conversion of Penta-O-Acetyl-1,2-O-isopropylidene-aldehydo-D-glucose into Tri-O-acetyl-2,3-dideoxy-aldehydo-D-erythro-hex-2-enose.
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چکیده
منابع مشابه
Phenyl 4,6-di-O-acetyl-2,3-dideoxy-1-thio-α-d-erythro-hex-2-enopyranoside
The pyranosyl ring in the title compound, C(16)H(18)O(5)S, adopts an envelope conformation, with the acetyl groups in equatorial positions. In the crystal, weak C-H⋯O inter-actions link the molecules into chains.
متن کامل1-O-Acetyl-3,4,6-tri-O-benzyl-2-C-bromomethyl-2-deoxy-α-d-glucopyranose
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. Th...
متن کامل3,4,6-Tri-O-acetyl-1,2-[(S)-ethylidene]-β-d-mannopyranose
In the title compound, C(14)H(20)O(9), the six-membered pyran and the five-membered dioxalane rings adopt chair and twisted conformations, respectively. In the crystal, the mol-ecules are linked by C-H⋯O inter-actions.
متن کامل2,3,4-Tri-O-acetyl-β-d-xylosyl 2,4-dichlorophenoxyacetate
In the title compound, C(19)H(20)Cl(2)O(10), the hexopyranosyl ring adopts a chair conformation. The four substituents are in equatorial positions. The mol-ecules arelinked via C-H⋯O contacts along the a axis.
متن کامل1,2,3-Tri-O-acetyl-5-deoxy-d-ribofuranose
The title compound, C(11)H(16)O(7), was obtained from the breakage reaction of the glycosidic bond of 5'-de-oxy-2',3'-diacetyl-inosine. The ribofuran-ose ring has a C2-exo, C3-endo twist configuration. No alteration of the relative configuration compared with d-(-)-ribose is observed.
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1974
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.28b-0853