JEE Main Chemistry question
A compound with a cyclic diester-type structure (two methyls flanking a dioxolane-type ring, drawn as CH₃–CH–CH–CH₃ joined through two ester oxygens to a central C=O) is the anhydride in
Answer: (C)
Solution
A cyclic anhydride/acetal-type five-membered ring formed from a 1,2-diol and a carbonyl-bearing fragment corresponds structurally to a diol with the two –OH groups on adjacent carbons;
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