The major product obtained on the monobromina | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The compound $A$ is $3$-methylanisole ($1$-methoxy-$3$-methylbenzene). In this molecule,the $-OCH_3$ group is a strong ortho/para-directing group,

Vedclass · Accepted Answer

$4-$bromo$-1-$methoxy$-3-$methylbenzene

Vedclass · Answer

(B) The compound $A$ is $3$-methylanisole ($1$-methoxy-$3$-methylbenzene). In this molecule,the $-OCH_3$ group is a strong ortho/para-directing group,while the $-CH_3$ group is a weakly ortho/para-directing group. The $-OCH_3$ group dominates the directing effect. Electrophilic substitution occurs at the positions ortho and para to the $-OCH_3$ group. The positions ortho to $-OCH_3$ are $2$ and $6$. Position $2$ is sterically hindered by the $-CH_3$ group at position $3$. The position para to $-OCH_3$ is position $4$. Substitution at position $4$ is favored due to less steric hindrance compared to position $2$. Thus,the major product is $4$-bromo-$1$-methoxy-$3$-methylbenzene.

The major product obtained on the monobromination (with $Br_2/FeBr_3$) of the following compound $A$ is

Similar Questions

The reaction of aryl halide with sodium metal in dry ether to give biphenyl is known as

For the reaction shown below,identify the major product $A$ and the reaction mechanism $R$:
$m$-bromoanisole $\xrightarrow{NaNH_2} A, R$

Assertion : The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides.
Reason : The intermediate carbanion is stabilized due to the presence of nitro group.

Number of deactivating groups in the following is $-Cl, -SO_3H, -OH, -NHC_2H_5, -COOCH_3, -CH_3$.

Which one of the following compounds is most reactive for $ArS_N2$ reaction?

Vedclass Test Series

Exam Paper Generator

Online Exam Module