3-(4-Meth­oxy­phen­yl)-5-methylisoxazole-4-carb­oxy­lic acid

In the title compound, C₁₂H₁₁NO₄, the dihedral angle between the benzene and isoxazole rings is 42.52 (8)°. The carb­oxy­lic acid group is close to being coplanar with the isoxazole ring [dihedral angle = 5.3 (2)°]. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R₂²(8) loops.

Ethyl 5-methyl-3-phenyl­isoxazole-4-carboxyl­ate

In the title compound, C₁₃H₁₃NO₃, the dihedral angle between the phenyl and isoxazole rings is 43.40 (13)°. The eth­oxy­carbonyl group is rotated out of the plane of the isoxazole ring by 16.2 (13)°.