Homework Answers
In A, + charge comes on Sp2 carbon(double bonded carbon) after Br is removed.
In B, + charge comes on Sp3 carbon after Br is removed.
In C, + charge comes on Sp2 carbon(double bonded carbon) after Br is removed.
In D, + charge comes on Sp2 carbon(double bonded carbon) after Br is removed.
+ charge is more stable on sp3 carbon as compared to sp2 carbon.
So, B will form most stable carbocation
Answer: B
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Which of the following alkyl halides forms the most stable carbocation when it undergoes an E1 reaction? ão ao ar
Draw the carbocation intermediate that is expected when each of the following alkyl halides undergoes ionization....
Draw the carbocation intermediate that is expected when each of
the following alkyl halides undergoes ionization. In each case, if
the carbocation is resonance-stabilized, make sure to draw the
resonance structures. Include formal charges in your answer. Do not
add curved arrow(s) or resonance arrow(s) in your answer if
any.
x Your answer is incorrect. Try again. Edit By accessing this Question Assistance, you will learn while you earn points based on the Point Pot
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions...
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions with the fastest rate? A) B) D) Page 19 of 60 Next Page Previous Page
Give the major product obtained when each of the following alkyl halides undergoes an E2 reaction:...
Give the major product obtained when each of the following alkyl halides undergoes an E2 reaction: Br Br b. What stereoisomer would be obtained in greater yield when each of the following alkyl halides undergoes an E2 reaction: a. CH,CHCH CH b CH,CHCH-CH CH3Cl ICH2Cl 12CH3 c. Br Cl CI
Which of the following alkyl halides undergoes the fastest SN2 reaction with sodium cyanide, NaCN? ID:...
Which of the following alkyl halides undergoes the fastest SN2
reaction with sodium cyanide, NaCN?
ID: A 10. Which ot the tollowing aakyi nauraes undergoes the tastest sNL reacuon wnun soarum cyaniue. Ra a. methyl iodide b. ethyl iodide c. 2-iodopropane d. tert-butyl iodide
E1 eliminations of alkyl halides are rarely useful for synthetic purposes because they give mixtu...
E1 eliminations of alkyl halides are rarely useful for synthetic purposes because they give mixtures of substitution and elimination products. Explain why the sulfuric acid-catalyzed dehydration of cyclohexanol gives a good yield of cyclohexene even though the reaction goes by an E1 mechanism. (Hint: What are the nucleophiles in the reaction mixture? What products are formed if these nucleophiles attack the carbocation? What further reactions can these substitution products undergo?)
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond b...
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond break occurs first. Vocabulary Polar, ElcB, Nucleophilie, E1, Grignard's Reagent, E:2, Aprotic, Zaitsev's rule, Carbocation, Gilman reagents, acidic, C-H, C-x Q3. Write the formula of following groups. (Marks 12) Alkyl Group ii. Alkynyl Group ii. Vinylic Groupiv. Allylc Group Which of the four groups mentioned in Q3...
9. Which of the following alkyl halides is most rea order kinetics? y halides is most...
9. Which of the following alkyl halides is most rea order kinetics? y halides is most reactive in an elimination reaction having first- A. A B.B C.C D.D E. E 10. Which of the following statements is (are) true about an E2 elimination reaction? A. It is fastest with 3 halides. B. It exhibits second-order kinetics. C. A better leaving group should make a faster reaction. D. Both (It is fastest with 3 halides) and (It exhibits second order kinetics)...
Identify the alkyl halide that generates ethanol. e alkyl halide that generates the most stable carbocation...
Identify the alkyl halide that generates ethanol. e alkyl halide that generates the most stable carbocation in aqueous a. bromoethane b. bromomethane c. 2-bromo-2-methylpropane d. 2-bromopropane
1. Determine which of the following molecules will generate the most stable carbocation. Explain your reasoning....
1. Determine which of the following molecules will generate the
most stable carbocation. Explain your reasoning.
2. Explain why the following reaction will not produce an E1
product?
3. Explain why the SN1 reaction condition is the preferred
method rather than SN2?
Determine which of the following molecules will generate the most stable carbocation. Circle the correct answer. EXPLAIN your reasoning! (5 points) Br: EXPLAIN why the following reaction will NOT produce an El product? (4 points) OH H20 Br...
15 Which of the following alkyl halides is most reactive in an SN2 reaction with Lil?...
15 Which of the following alkyl halides is most reactive in an SN2 reaction with Lil? H2 Br H,c Br CHs HyC a) I b) II c) III d) All three have equal reactivities
Draw the carbocation intermediate that is expected when each of
the following alkyl halides undergoes ionization. In each case, if
the carbocation is resonance-stabilized, make sure to draw the
resonance structures. Include formal charges in your answer. Do not
add curved arrow(s) or resonance arrow(s) in your answer if
any.
x Your answer is incorrect. Try again. Edit By accessing this Question Assistance, you will learn while you earn points based on the Point Pot
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions with the fastest rate? A) B) D) Page 19 of 60 Next Page Previous Page
Give the major product obtained when each of the following alkyl halides undergoes an E2 reaction: Br Br b. What stereoisomer would be obtained in greater yield when each of the following alkyl halides undergoes an E2 reaction: a. CH,CHCH CH b CH,CHCH-CH CH3Cl ICH2Cl 12CH3 c. Br Cl CI
Which of the following alkyl halides undergoes the fastest SN2
reaction with sodium cyanide, NaCN?
ID: A 10. Which ot the tollowing aakyi nauraes undergoes the tastest sNL reacuon wnun soarum cyaniue. Ra a. methyl iodide b. ethyl iodide c. 2-iodopropane d. tert-butyl iodide
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond break occurs first. Vocabulary Polar, ElcB, Nucleophilie, E1, Grignard's Reagent, E:2, Aprotic, Zaitsev's rule, Carbocation, Gilman reagents, acidic, C-H, C-x Q3. Write the formula of following groups. (Marks 12) Alkyl Group ii. Alkynyl Group ii. Vinylic Groupiv. Allylc Group Which of the four groups mentioned in Q3...
9. Which of the following alkyl halides is most rea order kinetics? y halides is most reactive in an elimination reaction having first- A. A B.B C.C D.D E. E 10. Which of the following statements is (are) true about an E2 elimination reaction? A. It is fastest with 3 halides. B. It exhibits second-order kinetics. C. A better leaving group should make a faster reaction. D. Both (It is fastest with 3 halides) and (It exhibits second order kinetics)...
Identify the alkyl halide that generates ethanol. e alkyl halide that generates the most stable carbocation in aqueous a. bromoethane b. bromomethane c. 2-bromo-2-methylpropane d. 2-bromopropane
1. Determine which of the following molecules will generate the
most stable carbocation. Explain your reasoning.
2. Explain why the following reaction will not produce an E1
product?
3. Explain why the SN1 reaction condition is the preferred
method rather than SN2?
Determine which of the following molecules will generate the most stable carbocation. Circle the correct answer. EXPLAIN your reasoning! (5 points) Br: EXPLAIN why the following reaction will NOT produce an El product? (4 points) OH H20 Br...
15 Which of the following alkyl halides is most reactive in an SN2 reaction with Lil? H2 Br H,c Br CHs HyC a) I b) II c) III d) All three have equal reactivities
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