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Byju's Answer
Standard XII
Chemistry
Introduction to E2 Mechanism
Give the ster...
Question
Give the stereochemical structures of B and C.
E
r
y
t
h
r
o
−
2
,
3
−
d
i
b
r
o
m
o
b
u
t
a
n
e
N
a
l
/
A
c
e
t
o
n
e
−
−−−−−−−
→
(
B
)
C
o
l
d
a
l
k
.
−
−−−−
→
K
M
n
O
4
(
C
)
(
A
)
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Solution
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Similar questions
Q.
Give the stereochemical structures of B and C.
T
h
r
e
o
−
2
,
3
−
d
i
b
r
o
m
o
b
u
t
a
n
e
N
a
I
/
A
c
e
t
o
n
e
−
−−−−−−−
→
(
B
)
C
o
l
d
a
l
k
.
−
−−−−
→
K
M
n
O
4
(
C
)
(
A
)
Q.
Give stereochemical structure of B and C.
Q.
Give the stereochemical products
H
C
≡
C
H
+
2
N
a
N
H
2
+
2
E
t
B
r
⟶
(
A
)
C
s
,
N
H
3
⟶
(
B
)
B
r
2
⟶
(
C
)
Identify A?
Q.
An alkene (A)
C
16
H
16
on ozonolysis gives only one product (B)
C
8
H
8
O
. Compound (B) on reaction with
N
a
O
H
/
I
2
yields sodium benzoate. Compound (B) reacts with
K
O
H
/
N
H
2
N
H
2
yielding a hydrocarbon (C)
C
8
H
10
. Write the structures of compounds (B) and (C). Based on this information two isomeric structures can be proposed for alkene (A). Deduce their structures. The isomer of (A) which on catalytic hydrogenation (
H
2
/
P
d
−
C
) gives a racemic mixture is:
Q.
Give the structures of
A
,
B
and
C
in the following reactions:
C
H
3
C
H
2
I
N
a
C
N
→
A
O
H
−
−
−−−−−−−−−−
→
P
a
r
t
i
a
l
h
y
d
r
o
l
y
s
i
s
B
N
a
O
H
+
B
r
2
→
C
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