ii)
A Mec
Markovnikov product:
hanism for the Reaction
Addition of a Hydrogen Halide an Alkene
Step 1 CC H X CC
H
+ slow +
The π electron
from HX to
of the alkene form a bond with a proton
forma carboncation anda halide ion.
+ X −
+ CC
H
Step 2
+ fast CC
H
X
The halide ion reacts with the carboncation by
donating an electron pair; the result is an alkyl halide.
X −
(^)