24. Which compound has a conjugated system? 1 2 3 a. only 1. b. only 2 c. 1 and 2 d. 1, 2 and 3 25. What is the major organic product obtained from the following reaction? ELECTROPHILIC ADDITION HBr (1 equiv) Me Me Br Br Me. Me. Me Me 2 Br Br Me Me Me Me 4 3 a. 2 and 4 b. 1 and 2 c. 2 and 3 d. 1 and 3 ELECTROPHILE: HB SUBSTRATE: 2-BromoBUTANG (DOUBLE BOND BETWEEN 2ND + 3RD CARBON (Azores) 26. Which of the following dienes cannot undergo Diels-Alder reactions? 2 a. only 4 8. b. only 3 c. 2 and 3 d. 1 and 4 27. Which of the following dienophiles is the most reactive in Diels-Alder reactions? OCOME COME OMe 2 3 a. 1 b. 2 c. 3 d. 4

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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24. Which compound has a conjugated system?
1
2
3
a. only 1.
b. only 2
c. 1 and 2
d. 1, 2 and 3
25. What is the major organic product obtained from the following reaction?
ELECTROPHILIC ADDITION
HBr (1 equiv)
Me Me
Br
Br
Me.
Me.
Me
Me
2
Br
Br
Me
Me
Me
Me
4
3
a. 2 and 4
b. 1 and 2
c. 2 and 3
d. 1 and 3
ELECTROPHILE: HB
SUBSTRATE: 2-BromoBUTANG
(DOUBLE BOND BETWEEN 2ND + 3RD CARBON (Azores)
26. Which of the following dienes cannot undergo Diels-Alder reactions?
2
a. only 4
8.
b. only 3
c. 2 and 3
d. 1 and 4
27. Which of the following dienophiles is the most reactive in Diels-Alder reactions?
OCOME
COME
OMe
2
3
a. 1
b. 2
c. 3
d. 4
Transcribed Image Text:24. Which compound has a conjugated system? 1 2 3 a. only 1. b. only 2 c. 1 and 2 d. 1, 2 and 3 25. What is the major organic product obtained from the following reaction? ELECTROPHILIC ADDITION HBr (1 equiv) Me Me Br Br Me. Me. Me Me 2 Br Br Me Me Me Me 4 3 a. 2 and 4 b. 1 and 2 c. 2 and 3 d. 1 and 3 ELECTROPHILE: HB SUBSTRATE: 2-BromoBUTANG (DOUBLE BOND BETWEEN 2ND + 3RD CARBON (Azores) 26. Which of the following dienes cannot undergo Diels-Alder reactions? 2 a. only 4 8. b. only 3 c. 2 and 3 d. 1 and 4 27. Which of the following dienophiles is the most reactive in Diels-Alder reactions? OCOME COME OMe 2 3 a. 1 b. 2 c. 3 d. 4
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