Question

What is anti markovnikov's rule?

Answer 1

HEY FOLK...

When addition reaction to unsaturated compounds takes place in the presence of free radical initiator like Benzoyl peroxide, the reaction changes from electrophilic addition to free radical addition. Hence if the addition of HBr to propene takes place in the presence Benzoyl peroxide 1-Bromo propene is the major product formed.


CH3-CH=CH2 + HBr ---------------> CH3-CH2-CH2-Br + CH3-CH(Br)-CH3


This is called as anti-Markovnikov rule addition.



HOPE IT HELPS...

#Mme

Answer 2

In a substitution reaction you add the hydrogen part of your reactant to the carbon in the double bond with the least hydrogens directly attached to it. The non hydrogen part will attach to the carbon in the double bond with the most hydrogens.

This is opposite of Markovnikovs as in that situation you would add the hydrogen part (like the H in HBr) to the carbon in the double bond that contains the most hydrogens directly attached to it, while the Br will attach to the carbon with the least hydrogens directly attached to this.

Some people like to define this rule based on which carbons in the double bond are "more substituted" but to make things easier you can just think that more hydrogens = less substituted.