Advices For Studying Organic Chemistry

(Wang) #1
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 −

(^)

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