Identify A in the following reaction: | vedclass

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

Question

(C) The reaction of styrene with $HBr$ in the presence of peroxide $(R_2O_2)$ proceeds via a free radical mechanism,which follows anti-Markovnikov add

Vedclass · Accepted Answer

$1-$bromo$-2-$phenylethane

Vedclass · Answer

(C) The reaction of styrene with $HBr$ in the presence of peroxide $(R_2O_2)$ proceeds via a free radical mechanism,which follows anti-Markovnikov addition.$1$. The peroxide undergoes homolytic cleavage to form alkoxy radicals $(RO^{\bullet})$.$2$. The alkoxy radical reacts with $HBr$ to generate a bromine radical $(Br^{\bullet})$.$3$. The bromine radical attacks the double bond of styrene to form a carbon-centered radical. There are two possibilities:- Attack at the terminal carbon leads to a more stable benzylic radical $(Ph-CH^{\bullet}-CH_2Br)$.- Attack at the internal carbon leads to a less stable secondary radical $(Ph-CH(Br)-CH_2^{\bullet})$.$4$. The more stable benzylic radical reacts with $HBr$ to form the major product,$1$-bromo-$2$-phenylethane $(Ph-CH_2-CH_2Br)$.

Identify $A$ in the following reaction:

Similar Questions

Determine the number of chiral products (including stereoisomers) formed upon $E_2$ elimination of the given substrate with $alc. KOH$.

Which of the following compounds has the lower boiling point?

Which among the following is $NOT$ a correct statement about $S_{N}1$ reaction?

In the following sequence of reaction,the major products $B$ and $C$ respectively are :

Match the following reactions with their mechanisms:
$(A)$ $CH_3CH_2CH_2I \xrightarrow{aq. KOH}$
$(B)$ $(CH_3)_3CCl \xrightarrow{H_2O}$
$(I)$ $S_N1$
$(II)$ $E_2$
$(III)$ $S_N2$
$(IV)$ $E_1$

Vedclass Test Series

Exam Paper Generator

Online Exam Module