3. What product would you expect to obtain from a nucleophilic substitution reaction of (S)-2- bromohexane with CH3CO,? Assume that inversion configuration occurs, and show the stereochemistry of both reactant and product?

Organic Chemistry: A Guided Inquiry
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Author:Andrei Straumanis
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Chapter19: Eas: Electrophilic Aromatic Substitution
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3. What product would you expect to obtain from a nucleophilic substitution reaction of (S)-2-
bromohexane with CH3CO,? Assume that inversion configuration occurs, and show the
stereochemistry of both reactant and product?
4. Predict whether each of the following substitution reactions is likely
be SN1or Sn2.
ÇI
OAc
Only
CH3CO2 Na+
CH3CO2H, H2O
а.
„CH2B
CH2OAC
CH3CO2- Na+
DMF
b.
HO.
HCI
CI
CH3OH
CH3
CH3
Na+ SCH3
H2C=CCH2B.
d.
H2C=CCH2SCH3
CH3CN
5. Setting aside the double bond stereochemistry, what products would you expect from
elimination reactions of the following alkyl halides?
CH3
Ci CH3
CH3CHCH2-C-CHCH3
CH3
6. From what alkyl halides are the following alkenes have been made?
CH3
CH3
CH3CHCH2CH2CHCH=CH2
7. Which of the two isomers would you expect to undergo E2 elimination faster? trans-1-bromo-
4-tert-butylcyclohexane or cis-1-bromo-4-tert-butylcyclohexane? Draw each molecule in its
more stable chair conformation. Provide an explanation to your answer.
C.
Transcribed Image Text:3. What product would you expect to obtain from a nucleophilic substitution reaction of (S)-2- bromohexane with CH3CO,? Assume that inversion configuration occurs, and show the stereochemistry of both reactant and product? 4. Predict whether each of the following substitution reactions is likely be SN1or Sn2. ÇI OAc Only CH3CO2 Na+ CH3CO2H, H2O а. „CH2B CH2OAC CH3CO2- Na+ DMF b. HO. HCI CI CH3OH CH3 CH3 Na+ SCH3 H2C=CCH2B. d. H2C=CCH2SCH3 CH3CN 5. Setting aside the double bond stereochemistry, what products would you expect from elimination reactions of the following alkyl halides? CH3 Ci CH3 CH3CHCH2-C-CHCH3 CH3 6. From what alkyl halides are the following alkenes have been made? CH3 CH3 CH3CHCH2CH2CHCH=CH2 7. Which of the two isomers would you expect to undergo E2 elimination faster? trans-1-bromo- 4-tert-butylcyclohexane or cis-1-bromo-4-tert-butylcyclohexane? Draw each molecule in its more stable chair conformation. Provide an explanation to your answer. C.
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