organic compounds
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In the title compound, C14H15NO5S, the thiazine ring adopts a sofa conformation and an intramolecular O—HO hydrogen bond forms an S(6) ring. In the crystal, molecules are linked viaC—HO interactions.
organic compounds
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In the title compound, C12H16N2O6S, the S atom adopts a distorted tetrahedral geometry with an O—S—O angle of 119.76 (13)°. The nitro group is twisted by 35.34 (2)° with respect to the aromatic ring; it accepts an N—HO hydrogen bond, resulting in a S(7) motif. In the crystal, N—HO and O—HO hydrogen bonds connect the molecules into an infinite chain along the a axis. The methyl C atoms of the isopropyl group are disordered in a 1:1 ratio.
organic compounds
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In the crystal structure of the title compound, C11H15NO4S, two independent molecules are present per asymmetric unit; they are dimerized through O—HO hydrogen bonds between their carboxy groups to generate R22(8) loops. An intramolecular N—HO link in one of the molecules closes an S(5) ring. The dimers are linked by N—HO and C—HO hydrogen bonds to form a three-dimensional network. The C atoms of the isopropyl group of one of the molecules are disordered over two orientations in a 3:1 ratio.
organic compounds
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In the title compound, C14H21NO4S, the O—S—O angle is 120.06 (11)°, with the S atom adopting a distorted tetrahedral geometry. In the crystal, N—HO hydrogen bonds connect the molecules along the a axis, generating an infinite chain. The disordered C atoms of the isobutyl group were refined with the C—C distances restrained to 1.52 (1) Å and the occupancy ratio refined to 0.504 (3):0.496 (3).