34. Select the best synthetic sequence to accomplish the transformation shown. Br A. 1. NaOEt; 2. HBr, cold, dark; 3. H₂SO4, H₂O B. 1. NaOEt; 2. HBr hv, A; 3. KO[Bu C. 1. NaOEt; 2. HBr cold, dark; 3. KOfBu D. 1. NaOEt; 2. Br₂; 3. KOBU E. 1. NaOEt; 2. Br₂, hvi
34. Select the best synthetic sequence to accomplish the transformation shown. Br A. 1. NaOEt; 2. HBr, cold, dark; 3. H₂SO4, H₂O B. 1. NaOEt; 2. HBr hv, A; 3. KO[Bu C. 1. NaOEt; 2. HBr cold, dark; 3. KOfBu D. 1. NaOEt; 2. Br₂; 3. KOBU E. 1. NaOEt; 2. Br₂, hvi
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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Question
![34. Select the best synthetic sequence to accomplish the transformation shown.
Br
A. 1. NaOEt; 2. HBr, cold, dark; 3. H₂SO4, H₂O
B. 1. NaOEt; 2. HBr hv, A; 3. KO/Bu
C. 1. NaOEt; 2. HBr cold, dark; 3. KOtBu
D. 1. NaOEt; 2. Br₂; 3. KOBU
E. 1. NaOEt; 2. Br₂, hv
35. In the retrosynthesis shown below: which compound could be converted to the alkyne
shown in a single reaction step, with the appropriate reagents?
Br
-Bri
Br
Br
||
|||
IV
B.
C.
D.
E. None
36. In the retrosynthesis shown below: which compound(s) could lead to the alcohol
shown in a single step, with the appropriate reagents?
OH
IV
I
B.
11
C.
|||
D.
E.
A. I & II
37. Which alkene cannot be converted into an alkyne by reacting it with 1) bromine
followed by 2) an excess of sodium amide and then 3) water?
||
IV
B.
C.
E. All work
D.
Br](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9986bc7-1968-4354-964e-5f42db134dd5%2F3c8721a1-cf67-4764-bee3-20d0e0d800bf%2F2h642a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:34. Select the best synthetic sequence to accomplish the transformation shown.
Br
A. 1. NaOEt; 2. HBr, cold, dark; 3. H₂SO4, H₂O
B. 1. NaOEt; 2. HBr hv, A; 3. KO/Bu
C. 1. NaOEt; 2. HBr cold, dark; 3. KOtBu
D. 1. NaOEt; 2. Br₂; 3. KOBU
E. 1. NaOEt; 2. Br₂, hv
35. In the retrosynthesis shown below: which compound could be converted to the alkyne
shown in a single reaction step, with the appropriate reagents?
Br
-Bri
Br
Br
||
|||
IV
B.
C.
D.
E. None
36. In the retrosynthesis shown below: which compound(s) could lead to the alcohol
shown in a single step, with the appropriate reagents?
OH
IV
I
B.
11
C.
|||
D.
E.
A. I & II
37. Which alkene cannot be converted into an alkyne by reacting it with 1) bromine
followed by 2) an excess of sodium amide and then 3) water?
||
IV
B.
C.
E. All work
D.
Br
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