Identify A and B in the given chemical reacti | vedclass

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(A) The reaction sequence is as follows:$1$. Benzene reacts with succinic anhydride in the presence of anhydrous $AlCl_3$ (Friedel-Crafts acylation) t

Vedclass · Accepted Answer

$A = 	ext{4-oxo-4-phenylbutanoic acid}, B = 	ext{4-phenylbutanoic acid}$

Vedclass · Answer

(A) The reaction sequence is as follows:$1$. Benzene reacts with succinic anhydride in the presence of anhydrous $AlCl_3$ (Friedel-Crafts acylation) to form $A$,which is $4	ext{-oxo-}4	ext{-phenylbutanoic acid}$ (also known as $\beta	ext{-benzoylpropionic acid}$).$2$. $A$ undergoes Clemmensen reduction $(Zn-Hg/HCl)$ to reduce the ketone group to a methylene group,forming $B$,which is $4	ext{-phenylbutanoic acid}$.$3$. $4	ext{-phenylbutanoic acid}$ then undergoes intramolecular Friedel-Crafts acylation in the presence of $H^+$ to form $\alpha	ext{-tetralone}$.

Identify $A$ and $B$ in the given chemical reaction sequence :-

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