Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?

Question

Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product? (A) F3C - CH = CH2 (B) Cl - CH = CH2 (C) CH3O - CH = CH2 (D) H2N - CH = CH2

Tardigrade Admin · Accepted Answer

In this case antimarkonikov product will be formed as major product because carbocation formed at a double bonded carbon having lesser number of H atom will be unstable due to presence of an electron withdrawing group (CF3) attached to it.

Q. Which one of the following alkenes when treated with $H Cl$ yields majorly an anti Markovnikov product?

$F_{3} C - C H = C H_{2}$

$Cl - C H = C H_{2}$

$C H_{3} O - C H = C H_{2}$

$H_{2} N - C H = C H_{2}$

In this case antimarkonikov product will be formed as major product because carbocation formed at a double bonded carbon having lesser number of H atom will be unstable due to presence of an electron withdrawing group $(C F_{3})$ attached to it.

Q. Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?

F3​C−CH=CH2​

Cl−CH=CH2​

CH3​O−CH=CH2​

H2​N−CH=CH2​