2-Aminobenzoic (anthranilic) acid is prepared from 1,2-benzenedicarboxylic anhydride (phthalic anhydride) by using the two reactions shown here.

Question:

2-Aminobenzoic (anthranilic) acid is prepared from 1,2-benzenedicarboxylic anhydride (phthalic anhydride) by using the two reactions shown here. Explain these processes mechanistically.

СОН 1. NaOH, Br, 80°C 2. Н, Н.О NH, 300°C NH `NH2 1,2-Benzenedicarboxylic anhydride (Phthalic anhydride) 1,2-Benzenedicarboximide (Phthalimide) 2-Aminobenzoic acid (Anthranilic acid)