L1 /
8
CH1012
MARKOVNIKOV’S RULE
Markovnikov’s Rule
- Russian Chemist 1869
In the
addition of HX to an unsymmetrical alkene the H from HX becomes
attached to the carbon
atom of the double bond which has the most H’s directly
attached to it.
• The rule has been
rationalised on the basis
of the stability of the carbocation
intermediate that is formed in the first step.
of the stability of the carbocation
intermediate that is formed in the first step.
d d
1 2
1 2
