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The title compound, C18H18B2O6, was formed by the reaction between phenyl­boronic acid and D-glucose. The structure is analogous to those of D-glucoboronates previously prepared and characterized by NMR. In the crystal structure, mol­ecules are linked into one-dimensional chains along [100] via O—H...O hydrogen bonds [O...O = 2.8283 (17) Å].

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The title compound, C13H16Cl2N4O4S, was formed by base-assisted N-alkyl­ation of [2-(3,5-dichloro­phen­yl)-1,1-dioxo-2,3-dihydro-1H-1λ6-1,2,3,5-thia­triazol-4-yl]dimethyl­amine with methyl 2-bromo­propanoate, followed by a novel base-promoted ring-expansion reaction, to form a relatively rare 1,1-dioxo-1,2,4,6-thia­triazine. The thia­triazine heterocycle adopts an envelope conformation. In the crystal structure, adjacent mol­ecules are linked by an N—H...O hydrogen bond to form chains parallel to the a direction.
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