Benzene cannot be iodinated with I2 directly. However, in presence of oxidants such as HNO3 , iodination is possible. The electrophiles formed in the case is:

Question

Benzene cannot be iodinated with I2 directly. However, in presence of oxidants such as HNO3 , iodination is possible. The electrophiles formed in the case is: (A) [I+] (B) [I-] (C) [ overset text+δ textI ...... overset text+δ textO textH text2] text+ (D) [ overset- textδ textI ...... overset- textδ textO textH text2] text+

Tardigrade Admin · Accepted Answer

In the presence of oxidising agents such as

H N O_{3}

direct, iodination of benzene is possible. The electrophiles formed in this case is

[I^{+}]

.
Iodination reaction is reversible reaction. Nitric acid is oxidising agent which makes reaction irreversible.

H^{+} + H N O_{3} + \frac{1}{2} I_{2} \to Iodine cation I^{+} + N O_{2} + H_{2} O

Q. Benzene cannot be iodinated with $I_{2}$ directly. However, in presence of oxidants such as $H N O_{3}$ , iodination is possible. The electrophiles formed in the case is:

$[I^{+}]$

$[I^{-}]$

$[I +δ ...... O +δ H_{2}]^{+}$

$[I - δ ...... O - δ H_{2}]^{+}$

Q. Benzene cannot be iodinated with I2​ directly. However, in presence of oxidants such as HNO3​ , iodination is possible. The electrophiles formed in the case is:

[I+]

[I−]

[I+δ......O+δH2​]+

[I−δ......O−δH2​]+

Q. Benzene cannot be iodinated with $I_{2}$ directly. However, in presence of oxidants such as $H N O_{3}$ , iodination is possible. The electrophiles formed in the case is:

$[I^{+}]$

$[I^{-}]$

$[I +δ ...... O +δ H_{2}]^{+}$

$[I - δ ...... O - δ H_{2}]^{+}$