In the title compound, C25H23NO5S, the sulfonyl-bound benzene ring forms dihedral angles of 37.2 (1) and 67.0 (1)°, respectively, with the formyl­phenyl and phenyl rings. The mol­ecular conformation is stabilized by an intra­molecular C—H⋯π inter­action. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming a two-dimensional network in the (110) plane in which R 4 4(38) ring motifs are generated.

In the title compound, C19H17BrO4, the dihedral angle between the two benzene rings is 82.1 (1)°. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O hydrogen bond which generates an S(7) ring motif. The crystal packing is stabilized by inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions. Inter­molecular C—H⋯O inter­actions are involved in the formation of centrosymmetric R 2 2(16) dimers, which are connected into supra­molecular tapes running along the [100] direction.

In the title compound, C11H10BrClO2, the dihedral angle between the benzene ring and the plane of the acrylate unit is 62.1 (1)°. The crystal packing is stabilzed by inter­molecular C—H⋯O hydrogen bonds and C—Cl⋯π inter­actions [Cl⋯centroid = 3.829 (1) Å and C—Cl⋯centroid = 165.3 (1)°].

In the title compound, C24H19ClN2O3S, the sulfonyl-bound benzene ring forms dihedral angles of 38.1 (2) and 81.2 (1)°, respectively, with the formyl benzene and benzene rings. The mol­ecular conformation is stabilized by a weak intra­molecular C—H⋯O hydrogen bond, which generates an S(5) ring motif. The crystal packing is stabilized by C—H⋯O hydrogen bonds, which generate C(7) zigzag chains along [010] and R 3 3(19) ring motifs along [010]. The crystal packing is further stabilized by C—Cl⋯π inter­actions [Cl⋯centroid = 3.456 (2) Å and C—Cl⋯centroid = 173.4 (2)°].

In the title compound, C25H25NO5S, the O atom of the hy­droxy group is disordered over two positions, with occupancies of 0.820 (2) and 0.180 (2). The sulfonyl-bound benzene ring forms dihedral angles of 31.8 (1) and 60.7 (1)°, respectively, with the hy­droxy­methyl­benzene and phenyl rings. The mol­ecular conformation is stabilized by an intra­molecular O—H⋯O hydrogen bond, generating an S(8) ring motif. The crystal packing is stabilized by inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions.