Identify the suitable reagents for the conver | vedclass

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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.

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