The major product (Z) of the following chemic | vedclass

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(C) The reaction involves the nucleophilic addition of the Grignard reagent,$PhMgBr$,to the carbonyl group of $5$-bromo-$2$-pentanone. $1$. The phenyl

Vedclass · Accepted Answer

$A$ cyclic ether with a five-membered ring containing a phenyl group and a methyl group at the same carbon.

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(C) The reaction involves the nucleophilic addition of the Grignard reagent,$PhMgBr$,to the carbonyl group of $5$-bromo-$2$-pentanone. $1$. The phenyl group $(Ph^-)$ attacks the electrophilic carbonyl carbon of the ketone to form an intermediate alkoxide,$CH_3-C(OMgBr)(Ph)-CH_2-CH_2-CH_2Br$ (labeled as $P$). $2$. The alkoxide oxygen then performs an intramolecular nucleophilic substitution $(S_N2)$ on the carbon bearing the bromine atom,displacing the bromide ion and forming a five-membered cyclic ether ring. $3$. This results in the formation of $2$-methyl-$2$-phenyltetrahydrofuran as the major product $(Z)$.

List-$I$	List-$II$
$A$. Grignard reagent	$1$. $H_2 / Pd-BaSO_4$
$B$. Clemmensen reduction	$2$. $N_2H_4 / KOH / (CH_2OH)_2$
$C$. Rosenmund reduction	$3$. $CH_3MgX$
$D$. Wolff-Kishner reduction	$4$. $Zn-Hg / \text{conc. } HCl$
	$5$. $H_2 / Ni$

The major product $(Z)$ of the following chemical reaction is

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Match the following lists:
List-$I$ List-$II$
$A$. Grignard reagent $1$. $H_2 / Pd-BaSO_4$
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