S-Phenyl 4-meth­oxy­benzothio­ate

In the mol­ecule of the title thio­ester, C₁₄H₁₂O₂S, the dihedral angle between the phenyl and benzene rings is 71.8 (3)°. The meth­oxy group is essentially coplanar with the benezene ring to which it is bonded, with an r.m.s. deviation of 0.0065 (5) Å for the non-H atoms involved. In the crystal, weak C—H...π inter­actions are present.

N-[4-(4-Bromo­phen­yl)thia­zol-2-yl]-4-(piperidin-1-yl)butanamide

In the title compound, C₁₈H₂₂BrN₃OS, the piperidine ring adopts a chair conformation. The mean plane of the thia­zole ring forms dihedral angles of 23.97 (10) and 75.82 (10)° with the mean planes of its adjacent benzene and piperidine rings, respectively. An intra­molecular N—H...N hydrogen bond generates an S(7) ring motif in the mol­ecule. In the crystal, no significant inter­moelcular hydrogen bonds are observed, but a weak π–π inter­action with a centroid–centroid distance of 3.8855 (13) Å occurs.

1-(5-Bromo-4-phenyl-1,3-thia­zol-2-yl)pyrrolidin-2-one

The asymmetric unit of the title compound, C₁₃H₁₁BrN₂OS, consists of two crystallographically independent mol­ecules (A and B). In each mol­ecule, the pyrrolidine ring adopts an envelope conformation with a methyl­ene C atom as the flap atom. In mol­ecule A, the central thia­zole ring makes a dihedral angle of 36.69 (11)° with the adjacent phenyl ring, whereas the corresponding angle is 36.85 (12)° in mol­ecule B. The pyrrolidine ring is slightly twisted from the thia­zole ring, with C—N—C—N torsion angles of 4.8 (3) and 3.0 (4)° in mol­ecules A and B, respectively. In the crystal, C—H...π and π–π [centroid-to-centroid distance = 3.7539 (14) Å] inter­actions are observed. The crystal studied was a pseudo-merohedral twin with twin law (-100 0-10 101) and a refined component ratio of 0.7188 (5):0.2812 (5).