Why does adipic acid give a cyclic ketone on heating while glutaric acid and succinic acid give a cyclic anhydride?
According to Blanc Rule for Dibasic Carboxylic acids, A cyclic Ketone is formed unless a five or six membered cyclic acid anhydride can be formed. This rule is valid for 1,4; 1,5; 1,6. dicarboxylic acids