Chemistry 2203/7 (’07)
TEST 1A
Name: ____________________________ Page1/1
TEST WILL BE DISCUSSED IN TUTORIAL THIS FRIDAY 1130 AT 301
Marks are in parentheses
1
. (6)
For the molecules below, provide a systematic name (
2 x 2 marks
) and indicate with an arrow which
carbons are sp hybridized (
1 mark
);
Which carbons are sp
2
hybridized (
1 mark
)?
H
H
1
2
3
4
5
sp
sp
2-pentyne
sp2
sp2
(
E
)-3-heptene
1
2
3
4
5
6
7
2a
. (1) Draw the Newman projection of the staggered conformation of propane.
H
H
H
H
H
H
H
H
H
H
2b
. (1) Hexane and water are immiscible. Which solvent has a higher density?
Water
3a
. (8)
Show the reagents required to execute the reactions shown below.
CH
3
CH
3
O
O
CCl
3
CCl
3
H
2
/ Pt or Pd
Cl
2
h
ν
H+ H2O
MCPBA
3b
. (8)
Show the starting material required to yield the product shown below.
KMnO
4
1. BH
3
O
OH
HO
HO
2
O
3
, Zn
2. Oxid. wrkup
,
-
OH
Li, NH
3
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Chemistry 2203/7 (’07)
TEST 1A
Page 2/2
3c
. (8)
Show the expected product(s) for each of the reactions shown below.
MCPBA
H
2
O, H
+
H
2
, Lindlar catalyst
Br
2
, H
2
O
OH
O
Br
HO
4a
. (6)
MECHANISM. Draw a mechanism for the following reaction, showing all intermediates (
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- Spring '08
- levin
- Organic chemistry, Mole, Redox, Br Br
-
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