In the title compound, C14H12FNO4S, the dihedral angle between the aromatic rings is 50.26 (9)° and the C—S—N—C bond adopts a gauche conformation [torsion angle = −68.12 (15)°]. The dihydrodioxine ring is disordered over two orientations, which both approximate to half-chairs, in a 0.880 (7):0.120 (7) ratio. In the crystal, N—H⋯O hydrogen bonds link the molecules into C(4) chains propagating in [100]. Weak C—H⋯O and C—H⋯F interactions consolidate the packing.
In the title molecule, C13H19NO3S, the S atom has a distorted tetrahedral geometry with an O—S—O bond angle of 120.39 (18)°. The cyclohexane ring has a chair conformation. In the crystal, molecules are connected by intermolecular N—H⋯O hydrogen bonds, forming zigzag hydrogen-bonded chains directed along the c axis.
In the title compound, C10H11NO3S, the benzisothiazole ring system is almost planar [maximum deviation = 0.030 (1) Å for the S atom]. The isopropoxy group is almost in the plane of the benzisothiazole ring system [N—C—O—C = 4.5 (2)°] with one of its methyl groups in an antiperiplanar orientation relative to the benzisothiazole ring system [C—C—O—C = −162.0 (2)°].
In the title compound, C13H11Cl2NO2S, the dihedral angle between the aromatic rings is 76.62 (10)° and the C—S—N—C linkage between the rings adopts a gauche conformation [torsion angle = −51.4 (2)°]. A weak intramolecular C—H⋯O interaction closes an S(6) ring. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate R
2
2(8) loops.
Key indicators: single-crystal X-ray study; T = 296 K; mean (C-C) = 0.005 Å; R factor = 0.055; wR factor = 0.129; data-to-parameter ratio = 17.2.In the title compound, C 22 H 23 NO 4 S 2 , the dihedral angles between the dimethylphenyl ring and the two methylphenyl rings are 41.19 (15) and 20.50 (17) ; the dihedral angle between the methylphenyl rings is 48.11 (14) . The C-N-S-C torsion angles are À87.6 (2) and 77. 43 (18) . The only possible directional interactions in the crystal are very weak C-HÁ Á Á interactions and very weak -stacking between parallel methylphenyl rings [centroid-to-centroid separation = 4.010 (2) Å and slippage = 1.987 Å ].
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