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Byju's Answer
Standard XII
Chemistry
Introduction to E2 Mechanism
CH 3 CH 2 CH ...
Question
C
H
3
C
H
2
C
H
2
B
r
C
H
3
O
N
a
−
−−−−−
→
C
H
3
O
H
?
Write the product of the reaction.
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Solution
When n propyl bromide is treated with sodium ethoxide in ethanol, methoxy propane is obtained as the product.
C
H
3
C
H
2
C
H
2
B
r
C
H
3
O
N
a
−
−−−−−
→
C
H
3
O
H
C
H
3
C
H
2
C
H
2
O
C
H
3
In this reaction, bromide is replaced with methoxy group.
This is an example of
S
2
N
mechanism.
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Similar questions
Q.
End product in this reaction is
C
H
C
H
+
H
B
r
→
X
K
O
H
→
Q.
C
H
3
C
H
2
C
H
2
B
r
N
H
3
−
−−−
→
e
x
c
e
s
s
C
H
3
C
H
2
C
H
2
N
H
2
If given product is right then, enter 1 else 0.
Q.
Arrange the following compounds in increasing order of their boiling points.
I.
C
H
3
C
H
2
C
H
2
B
r
II.
C
H
3
C
H
2
C
H
2
C
H
2
B
r
III.
(
C
H
3
)
2
C
H
C
H
2
B
r
IV.
(
C
H
3
)
3
C
B
r
Q.
Arrange the following alkyl halides in decreasing order of the rate of
β
-elimination reaction with alcoholic
K
O
H
.
(I)
C
H
3
−
H
|
C
|
C
H
3
−
C
H
2
B
r
(II)
C
H
3
−
C
H
2
−
B
r
(III)
C
H
3
−
C
H
2
−
C
H
2
−
B
r
Q.
C
H
3
C
H
=
C
H
2
+
B
.
r
→
C
H
3
.
C
H
2
B
r
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