2,2-Dichloro-N-(4-chloro­phenyl­sulfon­yl)­acetamide

In the crystal structure of the title compound (N4CPSDCAA), C8H6Cl3NO3S, the conformations of the N—H and C=O bonds in the SO2—NH—CO—C group are trans to each other, similar to those observed in 2,2-dichloro-N-(phenyl­sulfon­yl)­acetamide (NPSDCAA), 2,2-dichloro-N-(4-methyl­phenyl­sulfon­yl)acetamide (N4MPSDCAA) and N-(4-chloro­phenyl­sulfon­yl)-2,2,2-trimethyl­acetamide (N4CPSTMAA), with similar bond parameters. The –SNHCOC– unit in N4CPSDCAA is essentially planar and makes a dihedral angle of 79.67 (5)° with the benzene ring, comparable to 79.75 (8)° in NPSDCAA, 81.02 (5)° in N4MPSDCAA and 82.2 (1)° in N4CPSTMAA. The mol­ecules in N4CPSDCAA are linked into layers parallel to the (001) plane by inter­molecular N—H⋯O hydrogen bonds

2,2,2-Trimethyl-N-(phenyl­sulfon­yl)­acetamide

The N—H and C=O bonds of the SO2—NH—CO group in the title compound, C11H15NO3S, are anti to each other. The asymmetric unit contains two independent mol­ecules. The benzene rings form dihedral angles of 83.19 (8) and 76.01 (10)° with the mean planes of the C2NOS fragments. The mol­ecules are linked into chains parallel to the b axis by inter­molecular N—H⋯O hydrogen bonds

N-(2,6-Dichloro­phen­yl)benzene­sulfonamide

In the title compound, C12H9Cl2NO2S, the mol­ecule is bent at the S atom with a C—SO2—NH—C torsion angle of 82.5 (2)°. The benzene rings are tilted relative to each other by 43.5 (1)°. The crystal structure features chains linked by N—H⋯O hydrogen bonds

N-(2,6-Dimethyl­phen­yl)-4-methyl­benzene­sulfonamide

In the title compound, C15H17NO2S, the mol­ecule is bent at the S atom, the C—SO2—NH—C torsion angle being 88.0 (2)°. The dihedral angle between the two aromatic rings is 49.8 (1)°. In the crystal, mol­ecules are linked into zigzag chains parallel to the a axis via N—H⋯O hydrogen bonds

N-(2,3-Dimethyl­phen­yl)-4-methyl­benzene­sulfonamide

In the title compound, C15H17NO2S, the dihedral angle between the aromatic rings is 38.3 (1)°. The conformation of the N—H bond is anti to the methyl groups in the adjacent aromatic ring. In the crystal, N—H⋯O hydrogen bonds link the molecules into infinite chains

N-(4-Chloro­phenyl­sulfon­yl)-2-methyl­propanamide

In the crystal structure of the title compound, C10H12ClNO3S, the N—C bond in the C—SO2—NH—C segment has a gauche torsion with respect to the S=O bonds. The mol­ecule is twisted at the S atom with a C—S—N—C torsion angle of −62.3 (3)°. The benzene ring and the SO2—NH—CO—C segment form a dihedral angle of 89.3 (1)°. In the crystal, mol­ecules are linked by pairs of N—H⋯O hydrogen bonds into inversion dimers

N-(4-Bromo­phenyl­sulfon­yl)-2,2,2-tri­methyl­acetamide

The conformations of the N—H and C=O bonds in the SO2—NH—CO—C group of the title compound (N4BPSTMAA), C11H14BrNO3S, are trans to each other, similar to what is observed in N-(4-chloro­phenyl­sulfon­yl)-2,2,2-trimethyl­acet­amide (N4CPSTMAA) and 2,2,2-trimethyl-N-(4-methyl­phenyl­­sulfon­yl)acetamide (N4MPSTMAA). The bond para­meters in N4BPSTMAA are similar to those in N4CPSTMAA, N4MPSTMAA, N-aryl-2,2,2-trimethyl­acet­amides and 4-bromo­benzene­sulfonamide. The benzene ring and the SO2—NH—CO—C group in N4BPSTMAA form a dihedral angle of 82.8 (1)°, comparable with the values of 82.2 (1)° in N4CPSTMAA and 71.2 (1)° in N4MPSTMAA. N—H⋯O hydrogen bonds form a centrosymmetric ring characterized by an R 2 2(8) motif

N-(2,3-Dimethyl­phen­yl)benzene­sulfonamide

In the crystal structure of the title compound, C14H15NO2S, the amino H atom is trans to one of the O atoms of the SO2 group. Furthermore, the N—H bond is anti to the ortho- and meta-methyl groups of the aromatic ring. The two aromatic rings are tilted relative to each other by 64.8 (1)°. The mol­ecules form zigzag chains along the a axis via inter­molecular N—H⋯O hydrogen bonds

N-(2,6-Dimethyl­phen­yl)-2,4-dimethyl­benzene­sulfonamide

Mol­ecules of the title compound, C16H19NO2S, are bent at the S atom with a C—SO2—NH—C torsion angle of −60.0 (2)°. The dihedral angle between the phenyl­sulfonyl and aniline rings is 41.7 (1)°. In the crystal, mol­ecules are packed into centrosymmetric dimers through pairs of N—H⋯O(S) hydrogen bonds