What is the chief product obtained when n-butane is treated with Br2 in the presence of light at 130°C?

Question

What is the chief product obtained when n-butane is treated with Br2 in the presence of light at 130°C? (A) CH3-CH2-CHBr-CH3 (B) (CH3)2CHCH2Br (C) (CH3)3CBr (D) CH3 - CH2 - CH2 - CH2 - Br

Tardigrade Admin · Accepted Answer

Br2 has a much regioselectivity so chief product formed is 2 -bromobutane.

Q. What is the chief product obtained when $n$ -butane is treated with $B r_{2}$ in the presence of light at $13 0^{\circ} C$ ?

$C H_{3} - C H_{2} - C H B r - C H_{3}$

$(C H_{3})_{2} C H C H_{2} B r$

$(C H_{3})_{3} CB r$

$C H_{3} - C H_{2} - C H_{2} - C H_{2} - B r$

$B r_{2}$ has a much regioselectivity so chief product formed is $2$ -bromobutane.

Q. What is the chief product obtained when n-butane is treated with Br2​ in the presence of light at 130∘C?

CH3​−CH2​−CHBr−CH3​

(CH3​)2​CHCH2​Br

(CH3​)3​CBr

CH3​−CH2​−CH2​−CH2​−Br