Carboxylic Acids and their Derivatives - Result Question 48

34. ( $\pm$ ) $2$-phenylpropanoic acid on treatment with $(+)$ $2$ -butanol gives $(A)$ and $(B)$. Deduce their structures and also establish stereochemical relation between them.

(2003)

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Solution:

The two stereoisomers of $2$-phenyl propanoic acid in the racemic mixture are :

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Here $A$ and $B$ are diastereomers.