organic compounds
The title compound, C8H15NO7, the methyl carbamate of β-D-glucosamine has been synthesized, in moderate yield, from the reaction of β-D-glucosamine hydrochloride and methyl chloroformate. There are two crystallographically independent molecules in the asymmetric unit. In both molecules, the pyranose ring adopts a slightly distorted chair conformation. In the crystal structure, molecules are packed along the a axis, with intra- and intermolecular O—HO, N—HO and C—HO hydrogen bonds.
organic compounds
The title compound, 2-hydroxy-2-(4-hydroxyphenyl)-N-methylethanaminium chloride, C9H14NO2+·Cl−, has been isolated for the first time from the genus Harrisonia. Its structure is stabilized by extensive intra- and intermolecular hydrogen bonds of type O—HO, N—HO, N—HCl and C—HCl, resulting in a three-dimensional network. Additional weak π–π stacking interactions between adjacent molecules further stabilize the crystal structure.