Identify the suitable reagents for the conver | vedclass

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

Question

(A) The conversion of benzene to fluorobenzene involves the following steps:$1$. Nitration of benzene using $conc. H_2SO_4   HNO_3$ to form nitrobenze

Vedclass · Accepted Answer

$(i) 	ext{ conc. } H_2SO_4 + HNO_3; (ii) Sn / HCl; (iii) NaNO_2 + HCl / 0-5 ^\circ C; (iv) HBF_4; (v) \Delta$

Vedclass · Answer

(A) The conversion of benzene to fluorobenzene involves the following steps:$1$. Nitration of benzene using $conc. H_2SO_4   HNO_3$ to form nitrobenzene.$2$. Reduction of nitrobenzene using $Sn / HCl$ to form aniline.$3$. Diazotization of aniline using $NaNO_2   HCl$ at $0-5 ^\circ C$ to form benzene diazonium chloride.$4$. Balz-Schiemann reaction: Treatment of benzene diazonium chloride with $HBF_4$ followed by heating $(\Delta)$ yields fluorobenzene.Therefore,the sequence of reagents in option $(A)$ is correct as it includes the necessary heating step for the decomposition of the diazonium fluoroborate salt.

Identify the suitable reagents for the conversion of benzene to fluorobenzene.

Similar Questions

Which of the following compounds has difficulty in breaking the $C-X$ bond?

The $C - Cl$ bond in methyl chloride compared to the $C - Cl$ bond in chlorobenzene is:

Rank the following compounds in order of decreasing rate of reaction with alkoxide ion $(CH_3CH_2O^{-})$ in a nucleophilic aromatic substitution reaction:
$1$. $1$-bromo-$2$-nitrobenzene
$2$. $1$-bromo-$3$-nitrobenzene
$3$. $1$-bromo-$2,4$-dinitrobenzene
$4$. $1$-bromo-$3,4$-dinitrobenzene

The replacement of $Cl$ in chlorobenzene to form phenol requires drastic conditions,but the chlorine in $2,4-$dinitrochlorobenzene is readily replaced because:

Which of the following compounds has difficulty in breaking the $C-X$ bond during a nucleophilic substitution reaction?

Vedclass Test Series

Exam Paper Generator

Online Exam Module