Homework Answers
E2 elimination prefers antiperiplanar geometry for elimination
which is suitable in structure D and structure
B.
As chlorine and bromine are present at axial positions which is
suitable for fast E2 elimination reaction.
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QUESTION 30 Which of the following would have the fastest rate of reaction to form 4-tert-butylcyclohexene?...
4. Which of the following will have the fastest rate of reaction in a SNI reaction?...
4. Which of the following will have the fastest rate of reaction in a SNI reaction? Why? a. Cl но ert-butyl chloride tert-butanol BuOH tBuCl Put the following carbocations in order of increasing stability starting with the least stable. 5. a. Br Br Br CH3Br
28) The reaction of tert-butyl bromide, (CH,)CBr, with ethanol affords the substitution product tert-butyl ethyl ether,...
28) The reaction of tert-butyl bromide, (CH,)CBr, with ethanol affords the substitution product tert-butyl ethyl ether, (CH)1COCH CH, in acidic conditions. What would happen to the rate of the reaction if the concentration of ethanol was doubled? A) The rate remains the same. B) The rate decreases by a factor of 2 C) The rate increases by a factor of 2. D) The rate increases by a factor of 4. Circle the following alkyl halide that will undergo the fastest...
1.1 In which of the following solvents would the reaction of 1-bromobutane with sodium azide,NaN3, proceed...
1.1 In which of the following solvents would the reaction of
1-bromobutane with sodium azide,NaN3, proceed the fastest?
a.aceticacid
b.ethanol
c.water
d.acetonitrile
1.2 Which of the following solvents is the best choice for the
reaction of 1-chlorohexane with sodium bromide?
a.dimethylsulfoxide
b.water
c.hexane
d.toluene,PhCH3
1.3 Which of the following is most likely to undergo
rearrangement during reaction with methanol?
1.4 Name which energy diagrams represents the course of an
exothermic SN1, SN2,E1, or E2 reaction?
1.5 Which of the following...
Which haloalkane shown below would be expected to react the fastest in a typical SN2 reaction?...
Which haloalkane shown below would be expected to react the fastest in a typical SN2 reaction? CH, 1-CH CH, CH -C—C=CHC1-C-CH3 н CH CH (b) CH3C1 CH; CH; Br—C—C=CH H CH; (e) CH; I-C-C=CH H H CHI (f) a. a b.b 10cc d. d e.e f. f
1.1 What is the equation for the rate of formation of tert-butyl alcohol from the reaction...
1.1 What is the equation for the rate of formation of tert-butyl
alcohol from the reaction of tert-butyl bromide (t-BuBr) with water
by an SN1 mechanism?
A. Rate= k[t-BuBr]
B Rate=k[ t-BuBr][H2O]
C. Rate=k[ H2O]
D. Rate=k[t-BuBr]^2
1.2 What is the equation for the rate of formation of
1-iodobutane from the reaction of 1-chlorobutane (BuCl) with NaI by
an SN2 mechanism?
A. Rate=k[BuCl]
B. Rate=k[BuCl][NaI]
C. Rate=k[NaI]
D. Rate=k[BuCl]^2
1.3 What is the equation for the rate of formation of...
Which haloalkane shown below would be expected to react the fastest in a typical SN 1...
Which haloalkane shown below would be expected to react the fastest in a typical SN 1 reaction? CH 1-C-CH3 CH3 CH; Br-C-C=CH CI-C-CH; H CH; CH; (b) CH4Cl CH; (d) CH; I-d-c-CH₂ CH I-C -C=CH2 CH31 н H CH H (f)
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive...
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE Tab Caps Lock 0. Which of the...
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE
Tab Caps Lock 0. Which of the following compounds would NOT give a tert-butyl alcohol upon reaction with excess methylmagnesium bromide? 0 CI H3C 11. CH,CH,CH,CH,OH is the product (after acidic workup) of propylmagnesium bromide and 0 CH CH2 OH H C E SENT 12. The product of the following reaction is: CF FO list of d cn com (CH)2C C(CH3) CHCl,Koc(cHs)s A. 1,1-dichloro-2,2-dimethylpentane. B. 1,1-dimethylcyclopropane. C. 1,1-dichloro-2,2,3,3-tetramethylcyclopropane. D. 2,2-dichloro-3.3-dimethylbutane. not...
5. Consider the rate equati concentration of KCN were doubled? er the rate equation of the...
5. Consider the rate equati concentration of KCN were doubled? er the rate equation of the following reaction. How would the rate be affected if the CH-CH=CHCl + KCN – CHỊCH-CH-CN + KCl a. The rate would be doubled b. The rate would be halved c. The rate would remain the same d. It depends on the solvent 6. What is the major organic product of the reaction below? НВК HOOH, light 1 Br 2 Br b. 2 a. 1...
help with all please 14. Which of the following mechanistically depicts the protonation of tert-butyl alcohol...
help with all please
14. Which of the following mechanistically depicts the protonation of tert-butyl alcohol by hydrogen bromide? H-Br: в) (CH);С —ӧ: A) (CH3)3C-ö: н- Br: Н H-Br н D) (CH3)3C-ö H- Вr: C) (CH3)3CÖ: d. D c. C b.B a. A 15. What would by the effect of doubling both the concentration of t-butyl bromide and the concentration of sodium iodide in the reaction of t-butyl bromide with sodium iodide in methanol? a. The rate stays the same....
4. Which of the following will have the fastest rate of reaction in a SNI reaction? Why? a. Cl но ert-butyl chloride tert-butanol BuOH tBuCl Put the following carbocations in order of increasing stability starting with the least stable. 5. a. Br Br Br CH3Br
28) The reaction of tert-butyl bromide, (CH,)CBr, with ethanol affords the substitution product tert-butyl ethyl ether, (CH)1COCH CH, in acidic conditions. What would happen to the rate of the reaction if the concentration of ethanol was doubled? A) The rate remains the same. B) The rate decreases by a factor of 2 C) The rate increases by a factor of 2. D) The rate increases by a factor of 4. Circle the following alkyl halide that will undergo the fastest...
1.1 In which of the following solvents would the reaction of
1-bromobutane with sodium azide,NaN3, proceed the fastest?
a.aceticacid
b.ethanol
c.water
d.acetonitrile
1.2 Which of the following solvents is the best choice for the
reaction of 1-chlorohexane with sodium bromide?
a.dimethylsulfoxide
b.water
c.hexane
d.toluene,PhCH3
1.3 Which of the following is most likely to undergo
rearrangement during reaction with methanol?
1.4 Name which energy diagrams represents the course of an
exothermic SN1, SN2,E1, or E2 reaction?
1.5 Which of the following...
Which haloalkane shown below would be expected to react the fastest in a typical SN2 reaction? CH, 1-CH CH, CH -C—C=CHC1-C-CH3 н CH CH (b) CH3C1 CH; CH; Br—C—C=CH H CH; (e) CH; I-C-C=CH H H CHI (f) a. a b.b 10cc d. d e.e f. f
1.1 What is the equation for the rate of formation of tert-butyl
alcohol from the reaction of tert-butyl bromide (t-BuBr) with water
by an SN1 mechanism?
A. Rate= k[t-BuBr]
B Rate=k[ t-BuBr][H2O]
C. Rate=k[ H2O]
D. Rate=k[t-BuBr]^2
1.2 What is the equation for the rate of formation of
1-iodobutane from the reaction of 1-chlorobutane (BuCl) with NaI by
an SN2 mechanism?
A. Rate=k[BuCl]
B. Rate=k[BuCl][NaI]
C. Rate=k[NaI]
D. Rate=k[BuCl]^2
1.3 What is the equation for the rate of formation of...
Which haloalkane shown below would be expected to react the fastest in a typical SN 1 reaction? CH 1-C-CH3 CH3 CH; Br-C-C=CH CI-C-CH; H CH; CH; (b) CH4Cl CH; (d) CH; I-d-c-CH₂ CH I-C -C=CH2 CH31 н H CH H (f)
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE
Tab Caps Lock 0. Which of the following compounds would NOT give a tert-butyl alcohol upon reaction with excess methylmagnesium bromide? 0 CI H3C 11. CH,CH,CH,CH,OH is the product (after acidic workup) of propylmagnesium bromide and 0 CH CH2 OH H C E SENT 12. The product of the following reaction is: CF FO list of d cn com (CH)2C C(CH3) CHCl,Koc(cHs)s A. 1,1-dichloro-2,2-dimethylpentane. B. 1,1-dimethylcyclopropane. C. 1,1-dichloro-2,2,3,3-tetramethylcyclopropane. D. 2,2-dichloro-3.3-dimethylbutane. not...
5. Consider the rate equati concentration of KCN were doubled? er the rate equation of the following reaction. How would the rate be affected if the CH-CH=CHCl + KCN – CHỊCH-CH-CN + KCl a. The rate would be doubled b. The rate would be halved c. The rate would remain the same d. It depends on the solvent 6. What is the major organic product of the reaction below? НВК HOOH, light 1 Br 2 Br b. 2 a. 1...
help with all please
14. Which of the following mechanistically depicts the protonation of tert-butyl alcohol by hydrogen bromide? H-Br: в) (CH);С —ӧ: A) (CH3)3C-ö: н- Br: Н H-Br н D) (CH3)3C-ö H- Вr: C) (CH3)3CÖ: d. D c. C b.B a. A 15. What would by the effect of doubling both the concentration of t-butyl bromide and the concentration of sodium iodide in the reaction of t-butyl bromide with sodium iodide in methanol? a. The rate stays the same....
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