In the title compound, C(13)H(11)ClN(2)O(6), the dihedral angles between the benzene ring and the amino-methyl-ene unit and between the amino-methyl-ene group and the dioxane ring are 8.19 (14) and 1.39 (17)°, respectively. The dioxane ring has a half-boat conformation, in which the C atom between the dioxane O atoms is 0.662 (4)Å out of the plane through the remaining ring atoms. Intra-molecular N-H⋯O and N-H⋯Cl inter-actions occur.