Answer to Question #165286 in Organic Chemistry for Bawe bibs

Question

Benzoic acid is manufactured by the decarboxylation of phthalic anhydride (C8H4O3). Steam is passed through molten anhydride, containing a metallic catalyst.

Suggest a structure for phthalic anhydride. Hence write an equation for the reaction.

Answer 1

phthalic anhydride (C8H4O3 ) have one benzene ring attached with COOCO .

phthalic anhydride (C8H4O3 ) after hydrolysis gives benzoic acid .