Question

Prepare anthracinilic acid from phthalic anhydride

Answer 1

Arrange the following according to reactivity towards nucleophilic addition reaction: ... Cl increases the positive charge on the carbonyl carbon increasing its reactivity. So (B) > (A) > (the remaining 3) Further, aldehydes are more reactive than ketones.

Answer 2

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Phthalic acid is however easily dehydrated to form phthalic anhydride. ... Alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea.