5-Chloro­quinolin-8-yl furan-2-carboxyl­ate

In the title compound, C₁₄H₈ClNO₃, the central ester CO₂ group is twisted away from the quinoline and furoyl rings by 57.46 (5) and 2.0 (1)°, respectively. In the crystal, mol­ecules are linked by weak C—H...O inter­actions, forming chains in [001].

4-Formyl-2-nitro­phenyl 4-bromo­benzoate

In the title compound, C₁₄H₈BrNO₅, the benzene rings form a dihedral angle of 62.90 (7)°. The central ester group is twisted away from the nitro-substituted and bromo-substituted rings by 71.67 (7) and 8.78 (15)°, respectively. The nitro group forms a dihedral angle of 7.77 (16)° with the benzene ring to which it is attached. In the crystal, mol­ecules are linked by weak C—H...O inter­actions, forming C(12) chains which run along [001]. Halogen–halogen inter­actions [Br...Br = 3.523 (3) Å] within the chains stabilized by C—H...O inter­actions are observed.

4-Formyl-2-nitro­phenyl 2-chloro­benzoate

In the title compound, C₁₄H₈ClNO₅, the benzene rings form a dihedral angle of 19.55 (9)°. The mean plane of the central ester group [r.m.s. deviation = 0.024 Å] forms dihedral angles of 53.28 (13) and 36.93 (16)°, respectively, with the nitro- and chloro-substituted rings. The nitro group forms a dihedral angle of 19.24 (19)° with the benzene ring to which it is attached. In the crystal, mol­ecules are linked by weak C—H...O hydrogen bonds, forming C(7) chains, which run along [100].