Class notes
Alkene Reaction Mechanisms - Organic Chemistry
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Condensed class notes from lectures about alkene reaction mechanisms. Includes stereospecificity, and markovnikov addition.
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ALKENE REACTIONSof
Hydrogen
Addrrow HALIDEs
H H -
H H
BOWD Added THE CARBON THAT ALREADY HAS THE Mast 1)
HydraGEN GETS
ELECTROPHMIC AddION REACTION MOMS . ARE ADDED ACROSS THE DOUBLE .
TO
t H -
Br >
+ Br
H ⑦
7
H H
intermedrate
Hydrogens STEP REACTION
A Two a Carboleron
involving
. MIS .
2) H H
+
Bro >
H H
H H Br
+
REGiOSELECTNE/REgiospecific wonE
STEREOSELECTIVE STEREOSPECIFIC/NONE H H
MARKOUNIKOV/AMti-MARKoriKov worE
Acid CATALyZED Hydration
O
% H o
S
11 I
THE Acid I This REACTION 1) H- :
H
Is
PRESENT N BOTH THE products & 5 H
7 H
H
↳⑧
RegioSELECTNE/REgiospecific were
REACTANTS .
D IS
, By THIS CRMERNA A , CANALYST
.
THIS REACTION is USEd
·
L
TO CREATE ALCOHOLS from WHER . T NON
M DOES NVOLVE A CARBOCA FAST
H H ↓ H
STEREOSELECTIVE STEREOSPECIFIC/NONE 2)
·
INTERMEdraTe And + 1
-
An oxo u r M roN .
It
MARKOVNIKOV/Amti-MARKovikov worE
>
H
Ha L
Hi H 8
N 0
H 2
8 8 t
major
-
oo/S
t HO
-It
H/ H o
3)
It - OH
H or
Y
① &
8
N 0
>
Maor
HH ⑦ orS o
-It
Acid CAAlySES W/ALCOHOLS
THIS REACTION BS USED TO TURN ALKENES MTO ETHERS
RegioSELECTNE/Regiospecific were
sogH
-
and Alcohol The mechanism is
Essentrally The 1) -
V + TsOzH-
umog
.
STEREOSPECIFIC/NONE
①
STEREOSELECTIVE Osot
SAME As Acid CATALYEED Hydration S
.
MARKOVKOV
MARKOVNikor/Amti-MARKovikov worE
·
,
050gH
o
6
> S
H
① #
0-
& H
OR
2)
⑦ 6
d
o
D GosozH
-
H >
-
OR
Ami-Markovikov
HAL ENATION
og CHLORONM Zon
Halogenarow
m ove s an induced Dopoce in a -
RegioSELECTHE/Regiospecific were t
c -
>
+ ca
> -
Ch
dihtasogen molecule .
IT
is ALSO STEREOSpecific And only Binds in An Anti
STEREOSELECTIVE STEREOSPECIFIC/NONE
conformation as
opposed to syn.
MARKOVNikov/Amti-MARKovikov worE
?
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