3-(Propan-2-yl­oxy)-1,2-benzothia­zole 1,1-dioxide

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)°]

4-Chloro-N-cyclo­hexyl­benzene­sulfonamide

The title compound, C12H16ClNO2S, adopts an L-shaped conformation, with the central C—S—N—C torsion angle being −78.0 (2)°. The cyclo­hexyl ring adopts a chair conformation. In the crystal, adjacent mol­ecules are connected by pairs of N—H⋯O hydrogen bonds around an inversion centre, forming cyclic dimers [graph set R 2 2(8)]

N-Cyclo­hexyl-4-meth­oxy­benzene­sulfonamide

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

N-(2,3-Dimethylphenyl)-4-methyl-N-(4-methylphenylsulfonyl)benzenesulfonamide

In the title compound, C22H23NO4S2, 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 −87.6 (2) and 77.43 (18)°. The only possible directional interactions in the crystal are very weak C—H...π interactions and very weak π–π stacking between parallel methylphenyl rings [centroid-to-centroid separation = 4.010 (2) Å and slippage = 1.987 Å]

N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4-fluorobenzenesulfonamide

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

2,5-Dichloro-N-(3-methylphenyl)benzenesulfonamide

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 R22(8) loops