In the title compound, C(10)H(11)NO(4)·H(2)O, the carboxyl group is twisted at a dihedral angle of 6.1 (3)° with respect to the benzene ring. In the crystal, the organic mol-ecules are linked by pairs of O-H⋯O hydrogen bonds involving both carboxyl groups, forming zigzag chains propagating along the b-axis direction. The water mol-ecules form [100] chains linked by O-H⋯O hydrogen bonds. The org...

In this research the polymer which contains aldehyde group [H1] has been prepared by oxidation [H] using oxidizing agent (Dess Martin Periodinane), dialyzed ethanol, Schiff bases[H2,H5andH8] compounds have through reaction of compound with appropriate amines, [H3] hydroquinazolin ring [H2] 2-amino benzoic acid.[H4]which cyclization phthalic anhydride. [H6,H7]were [H5] acid and anhydriede. React...