2. What product is expected to form from the SN2reaction of 1-bromopentane with а. КОН? B. Nal?

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter14: Elimination
Section: Chapter Questions
Problem 18E
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2. What product is expected to form from the SN2reaction of 1-bromopentane with
а. КОН?
B. Nal?
3. What product would you expect to obtain from a nucleophilic substitution reaction of (S)-2-
bromohexane with CH3CO7? 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 SN 1or SN2.
OAc
CH3CO2¯ Na+
CH3CO2H, H2O
а.
CH2B
CH2OAC
CH3CO2- Na+
DMF
b.
HO.
HCI
CH3OH
CH3
CH3
Na+ -SCH3
H2C=CCH2SCH3
H2C=CCH2BR
d.
CH3CN
5. Setting aside the double bond stereochemistry, what products would you expect from
elimination reactions of the following alkyl halides?
CH3
Çi 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.
Transcribed Image Text:2. What product is expected to form from the SN2reaction of 1-bromopentane with а. КОН? B. Nal? 3. What product would you expect to obtain from a nucleophilic substitution reaction of (S)-2- bromohexane with CH3CO7? 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 SN 1or SN2. OAc CH3CO2¯ Na+ CH3CO2H, H2O а. CH2B CH2OAC CH3CO2- Na+ DMF b. HO. HCI CH3OH CH3 CH3 Na+ -SCH3 H2C=CCH2SCH3 H2C=CCH2BR d. CH3CN 5. Setting aside the double bond stereochemistry, what products would you expect from elimination reactions of the following alkyl halides? CH3 Çi 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.
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