Carboxylic Acids and their Derivatives - Result Question 67

53. An ester $A\left(C _4 H _8 O _2\right)$ on treatment with excess of methyl magnesium chloride followed by acidification, gives an alcohol $B$ as the sole organic product. Alcohol $B$, on oxidation with $NaOCl$ followed by acidification, gives acetic acid. Deduce structures of $A$ and $B$. Show the reactions involved.

(1998)

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Solution:

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