Reactions And Synthesis Of Alkenes Worksheet - Chapter 8 Page 12
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13Alkenes: Reactions and Synthesis
37.
ANS:
CH
=CHC
C
2
6
5
Section 8-9
To answer the question(s) below consider the following information:
In an abandoned laboratory has been found a flammable liquid, A, in a bottle bearing only the
label "Compound A: C
H
." Government agents have offered you a considerable sum to
7
12
determine the structure of this compound. After verifying the molecular formula by elemental
analysis, you find that Compound A reacts with 1 mol equiv of hydrogen; and, after treatment with
acidic KMnO
, Compound A gives the dicarboxylic acid C (see below). Another bottle from the
4
same laboratory is labeled "Compound B (isomer of A)." Compound B also reacts with 1 mol
equiv of hydrogen, but yields cyclohexanone after treatment with acidic KMnO
.
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38.
Refer to Section 8-9. How many degrees of unsaturation does Compound A possess?
ANS:
A saturated seven carbon compound should have the formula C
H
so compound A has (16 − 12)
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16
÷ 2 = 2 degrees of unsaturation.
39.
Refer to Section 8-9. Suggest structures for A and B.
ANS:
12
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