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ABSTRACT: The title compound, C14H19NO6, was synthesized by the condensation reaction between hecilid (4-formylphenl-β-d-allopyranoside) and methylamine in methanol. In the crystal structure, the pyran ring adopts a chair conformation and adjacent molecules are linked by intermolecular O—H...O and O—H...N hydrogen bonds, forming a three-dimensional network.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: The title compound, C21H21BrO7·C2H6O, was synthesized by the Claisen–Schimidt reaction of helicid (systematic name: 4-formylphenyl-β-d-allopyranoside) with 4-bromoacetophenone in ethanol. The pyran ring adopts a chair conformation. In the crystal structure, molecules are linked into a three-dimensional network by intermolecular O—H...O hydrogen bonds.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: The title compound, C15H16N2, contains two aromatic rings linked through an imino group. The molecule exhibits an E configuration with respect to the C=N bond. The dihedral angle between the aromatic rings is 61.96 (1)°.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: The title compound, C22H27N3O10S, was synthesized by reaction of an ethanol solution of helicid (systematic name: 4-formylphenl-β-d-allopyranoside), thiosemicarbazide and acetic acid. The molecule exhibits a trans conformation with respect to the C=N double bond. The pyran ring adopts a chair conformation. In the crystal structure, the molecules are linked into chains parallel to the b axis by intermolecular N—H...O hydrogen bonds.
Acta Crystallographica Section E. 01/2009;
