Syntheses of Methyl 3, 6-Diamino-3, 6-dideoxy-α-D-glucopyranoside and Methyl 3, 6-Diamino-3, 6-dideoxy-α-D-mannopyranoside
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چکیده
منابع مشابه
Methyl 6-deoxy-6-iodo-α-d-galactoside
In the crystal of the title compound, C(7)H(13)IO(5), the molecules are linked by O-H⋯O hydrogen bonds, which build linkages around one screw axis of the cell. These C(5) and C(6) packing motifs expand to R(2) (2)(10) and C(2) (2)(11) motifs and are similar to those found for closely related compounds. The galactoside ring has a (1)C(4) chair conformation.
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The structure of the title compound, C(7)H(13)N(3)O(5), was solved using data from a multiple fragment crystal. The galactoside ring adopts a (4)C(1) chair conformation. In the crystal, the molecules are linked by strong O-H⋯O hydrogen bonds, which build linkages around the screw axis of the cell in a similar way to the iodo analogue. These C-5 and C-6 packing motifs expand to R(2) (2)(10), C(2...
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In this article, synthesis of the explosive 2, 6 (diamino) 3, 5 dinitro pyridine (ANPY) of the direct nitration reaction of 2, 6 diamino pyridine in different conditions of temperature, with density functional theory method were studied. For this purpose, at first the material contained in the both sides of reaction were geometrically optimized, then the calculation of the the...
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The asymmetric unit of the title compound, C26H28O6·2CH3OH, contains two independent methyl 6-O-trityl-α-d-gluco-pyran-oside mol-ecules and four methanol solvent mol-ecules. The rings of two methyl α-d-gluco-pyran-oside adopt chair conformations. In the crystal, extensive intra- and inter-molecular O-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-molecular archi...
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The title compound, C(13)H(24)O(11)·4H(2)O, forms extended hydrogen-bonded networks. These are present between disaccharides, but not as inter-residue hydrogen bonds, as well as to water mol-ecules that in addition form an inter-molecular chain of hydrogen bonds. The conformation of the disaccharide is described by the glycosidic torsion angles ϕ(H) = -34° and ψ(H) = -5°. Macroscopically, the d...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1966
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.14.902