Question

how would you obtain 2-methylanthracene and 9-methylanthracene from phthalic anhydride​

Answer 1

Answer:

The compound is produced by the reaction of phthalic anhydride and toluene.[3][4] It can be chlorinated to give 1-chloro-2-methylanthraquinone. Nitration gives 1-nitro-2-methylanthraquinone, which can be reduced to 1-amino-2-methyl derivative. Oxidation of the methyl group gives anthraquinone-2-carboxylic acid.[2]

Summary eq for synthesis of 2-methylanthraquinone.