What are A & B in the following reaction?m-Br | vedclass

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

Question

(D) The starting material is $m-bromochlorobenzene$ $(m-Br-C_6H_4-Cl)$.Step $1$: Reaction with $Mg/THF$ forms a Grignard reagent. Since $Mg$ reacts fa

Vedclass · Accepted Answer

None of these

Vedclass · Answer

(D) The starting material is $m-bromochlorobenzene$ $(m-Br-C_6H_4-Cl)$.Step $1$: Reaction with $Mg/THF$ forms a Grignard reagent. Since $Mg$ reacts faster with $Br$ than $Cl$ due to the lower bond dissociation energy of $C-Br$,the product $A$ is $m-chlorophenylmagnesium$ bromide $(m-Cl-C_6H_4-MgBr)$.Step $2$: The Grignard reagent $A$ reacts with acetaldehyde $(CH_3CHO)$ followed by acidic workup $(aq. NH_4Cl)$ to form a secondary alcohol. The nucleophilic $m-chlorophenyl$ group attacks the carbonyl carbon of $CH_3CHO$,resulting in $m-chlorophenyl-1-ethanol$ $(m-Cl-C_6H_4-CH(OH)CH_3)$ as product $B$.Comparing this with the given options,none of the provided structures exactly match the correct chemical products $A$ and $B$.

What are $A$ $\&$ $B$ in the following reaction?
$m-Br-C_6H_4-Cl$ $\xrightarrow{Mg/THF} A$ $\xrightarrow[(ii) \ aq. NH_4Cl]{(i) \ CH_3CHO} B$

Similar Questions

Number of compounds from the following which cannot undergo Friedel-Crafts reactions is ............ toluene,nitrobenzene,xylene,cumene,aniline,chlorobenzene,$m$-nitroaniline,$m$-dinitrobenzene

The catalyst used in Raschig's process is

Which of the following is the least reactive in the case of bromination?

Which of the following is a Fittig reaction?

Arrange the following compounds in decreasing order of their rate of $S_NAr$ reaction:
$(i)$ $p$-nitrochlorobenzene
(ii) $m$-nitrochlorobenzene
(iii) $2,4$-dinitrochlorobenzene
(iv) chlorobenzene
$(v)$ $2,4,6$-trinitrochlorobenzene

Vedclass Test Series

Exam Paper Generator

Online Exam Module

What are $A$ $\&$ $B$ in the following reaction?$m-Br-C_6H_4-Cl$ $\xrightarrow{Mg/THF} A$ $\xrightarrow[(ii) \ aq. NH_4Cl]{(i) \ CH_3CHO} B$