Organic Chemistry As a Second Language: Second Semester Topics
4th Edition
ISBN: 9781119110651
Author: David R. Klein
Publisher: WILEY
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Question
Chapter 7.6, Problem 7.45P
Interpretation Introduction
Interpretation:
Major product in the given reaction has to be predicted.
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-AG|F=2E|V
3. Before proceeding with this problem you may want to glance at p. 466 of your textbook
where various oxo-phosphorus derivatives and their oxidation states are summarized.
Shown below are Latimer diagrams for phosphorus at pH values at 0 and 14:
Acidic solution
-0.93
+0.38
-0.51 -0.06
H3PO4 →H4P206 H3PO3 H3PO2 → P→ PH3
-0.28
-0.50
→
-0.50
Basic solution
3-1.12
-1.57
-2.05 -0.89
PO HPO →→H2PO2 P PH3
-1.73
a) Under acidic conditions, H3PO4 can be reduced into H3PO3 directly (-0.28V), or via the
formation and reduction of H4P2O6 (-0.93/+0.38V). Calculate the values of AG's for both
processes; comment.
(3 points)
0.5 PH,
0.0
-0.5-
2 3 9 3
-1.5
-2.0
Pa
H,PO
H,PO
H,PO
-3
-1 0
2
4
Oxidation state, N
2
b) Frost diagram for phosphorus under acidic
conditions is shown. Identify possible
disproportionation and comproportionation processes;
write out chemical equations describing them. (2 points)
c) Elemental phosphorus tends to disproportionate under basic conditions. Use data in…
These two reactions appear to start with the same starting materials but result in different products. How do the chemicals know which product to form? Are both products formed, or is there some information missing that will direct them a particular way?
What would be the best choices for the missing reagents 1 and 3 in this synthesis?
1. PPh3
3
1
2
2. n-BuLi
• Draw the missing reagents in the drawing area below. You can draw them in any arrangement you like.
• Do not draw the missing reagent 2. If you draw 1 correctly, we'll know what it is.
• Note: if one of your reagents needs to contain a halogen, use bromine.
Explanation
Check
Click and drag to start drawing a structure.
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Chapter 7 Solutions
Organic Chemistry As a Second Language: Second Semester Topics
Ch. 7.3 - Propose a plausible mechanism for each of the...Ch. 7.3 - Propose a plausible mechanism for each of the...Ch. 7.3 - Propose a plausible mechanism for each of the...Ch. 7.3 - Propose a plausible mechanism for each of the...Ch. 7.3 - Propose a plausible mechanism for each of the...Ch. 7.3 - Predict the major product in each of the following...Ch. 7.3 - Predict the major product in each of the following...Ch. 7.3 - Predict the major product in each of the following...Ch. 7.3 - Predict the major product in each of the following...Ch. 7.3 - Predict the major product in each of the following...
Ch. 7.3 - Identify the reagents you would use to achieve...Ch. 7.3 - Identify the reagents you would use to achieve...Ch. 7.3 - Identify the reagents you would use to achieve...Ch. 7.3 - Identify the reagents you would use to achieve...Ch. 7.3 - Identify the reagents you would use to achieve...Ch. 7.4 - Predict the major products for each of the...Ch. 7.4 - Predict the major products for each of the...Ch. 7.4 - Predict the major products for each of the...Ch. 7.5 - Prob. 7.23PCh. 7.5 - Identify the reagents you would use to make each...Ch. 7.5 - Identify the reagents you would use to make each...Ch. 7.5 - Identify the reagents you would use to make each...Ch. 7.5 - Identify the reagents you would use to make each...Ch. 7.5 - In the space provided, draw a mechanism for each...Ch. 7.5 - In the space provided, draw a mechanism for each...Ch. 7.5 - Prob. 7.33PCh. 7.5 - Prob. 7.34PCh. 7.5 - Prob. 7.35PCh. 7.5 - Prob. 7.36PCh. 7.6 - Based on everything we have just seen, propose a...Ch. 7.6 - Prob. 7.39PCh. 7.6 - Prob. 7.40PCh. 7.6 - Prob. 7.41PCh. 7.6 - Propose a mechanism for the following reaction:Ch. 7.6 - Prob. 7.44PCh. 7.6 - Prob. 7.45PCh. 7.6 - Prob. 7.46PCh. 7.7 - Prob. 7.48PCh. 7.7 - Prob. 7.49PCh. 7.7 - Prob. 7.50PCh. 7.7 - Prob. 7.51PCh. 7.7 - Prob. 7.52PCh. 7.7 - Prob. 7.53PCh. 7.7 - Prob. 7.55PCh. 7.7 - Prob. 7.56PCh. 7.7 - Prob. 7.57PCh. 7.7 - Prob. 7.58PCh. 7.7 - Prob. 7.59PCh. 7.7 - Prob. 7.60PCh. 7.7 - Prob. 7.61PCh. 7.7 - Prob. 7.62PCh. 7.7 - Prob. 7.63PCh. 7.7 - Prob. 7.64PCh. 7.7 - Prob. 7.65P
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