33. What reagents in the order written below would accomplish the following transformation? CI A) 1) Mg in ether; 2) B) 1) HCC?; 2) HgSO4, C) 1) Mg in ether; 2) 0 H; 3) H₂O H₂SO4, H₂O; 3) NaBH4, CH₂OH ; 3) H₂O THE: 3) H₂O2, NaOH

Organic Chemistry
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ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
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Chapter8: Haloalkanes, Halogenation, And Radical Reactions
Section: Chapter Questions
Problem 8.28P
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33. What reagents in the order written below would accomplish the following transformation?
A) 1) Mg in ether; 2)
"H; 3) H₂O
B) 1) HCC?; 2) HgSO4, H₂SO4, H₂O; 3) NaBH4, CH₂OH
A
C) 1) Mg in ether; 2)
; 3) H₂O
D) 1) HCEC?; 2) 9-BBN, THF; 3) H₂O2, NaOH
34. What is the final product obtained from the following transformation sequence: 1-pentyne
reacted with 1) NaNH2, 2) ethyl iodide, 4) H2, Pd, BaSO4, quinoline, MeOH 5) Br2 ?
A. 1&2
1
Br
Br
B. 1&3
Br
B
2
Br
C. 2&3
3
C
Br
Br
D. 3&4
35. Choose the molecule that will favor 1,2-methide shift readily upon hydration reaction under
acidic conditions?
Br
D
4
Br
D. 75%
calculate the percent enantiomeric excess of S stereoisomer in a mixture that contains 75
cent S stereoisomer and 25 percent R stereoisomer
-0%
B. 60%
C. 70%
Transcribed Image Text:33. What reagents in the order written below would accomplish the following transformation? A) 1) Mg in ether; 2) "H; 3) H₂O B) 1) HCC?; 2) HgSO4, H₂SO4, H₂O; 3) NaBH4, CH₂OH A C) 1) Mg in ether; 2) ; 3) H₂O D) 1) HCEC?; 2) 9-BBN, THF; 3) H₂O2, NaOH 34. What is the final product obtained from the following transformation sequence: 1-pentyne reacted with 1) NaNH2, 2) ethyl iodide, 4) H2, Pd, BaSO4, quinoline, MeOH 5) Br2 ? A. 1&2 1 Br Br B. 1&3 Br B 2 Br C. 2&3 3 C Br Br D. 3&4 35. Choose the molecule that will favor 1,2-methide shift readily upon hydration reaction under acidic conditions? Br D 4 Br D. 75% calculate the percent enantiomeric excess of S stereoisomer in a mixture that contains 75 cent S stereoisomer and 25 percent R stereoisomer -0% B. 60% C. 70%
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