Abstract
The crystal structure of the title compound, C18H15Cl2N3O2, shows a strong intramolecular O—H⋯N hydrogen bond [N⋯O = 2.598 (3) Å, O—H = 0.81 (3) Å, H⋯N = 1.86 (3) Å and O—H⋯N = 152 (3)°], which leads to the existence of a phenol–imine tautomer.
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