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ROSCOPY Which of the following gives only single peak in 1ts proton NMR spectrum? A. tert-butyl...
14. Which of the following reagents should be used to prepare tert-butyl ethyl ether a) tert-butyl...
14. Which of the following reagents should be used to prepare tert-butyl ethyl ether a) tert-butyl bromide and sodium ethoxide b) tert-butyl alcohol and ethyl bromide c) tert-butyl alcohol and ethanol d) potassium tert-butoxide and ethyl bromide 15. What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4 16. What product is formed when methyloxirane is treated with ethylmannesium bromide followed by treatment with aqueous acid? A) 1-pentanol B) 2-pentanol C)...
Construct a simulated proton-decoupled 13C NMR spectrum for tert-butyl alcohol. Drag the resonance signal icon to...
Construct a simulated
proton-decoupled 13C NMR spectrum for tert-butyl alcohol. Drag the
resonance signal icon to the appropriate chemical shift positions.
Then label the box above each resonance signal with the
corresponding number of equivalent carbons. (Not all chemical shift
bins will be used.)
help please
A sample of tert-butyl bromide (2-bromo-2-methyl propane) has been contaminated with some methyl bromide. The NMR...
A sample of tert-butyl bromide (2-bromo-2-methyl propane) has been contaminated with some methyl bromide. The NMR spectrum of this sample shows two signals, one at 2.2 ppm and one at 1.8 ppm, corresponding to these two compounds respectively. The integrals of the two signals equate to 6:1 respectively. What is the mole percent of each compound in the mixture, or phrasing it another way, what percentage of the mixture is tert-butyl bromide and what percentage is methyl bromide?
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...
answer all please. 23. What is the equation for the rate of formation of tert-butyl alcohol...
answer all please.
23. 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 Syl mechanism? A) Rate -k [t-BuBr] B) Rate = k [t-BuBr] [H,O] C) Rate k [H2O D) Rate k [t-BuBr] 24. Which of the following statements related to Ssl reactions is not true? A) The SN1 reaction can be described as a heterolytic bond cleavage followed by nucleophilic attack. B) Carbocations are electrophilic....
Which compound gives the following spectra? For the 1H-NMR assign all signals. interpret mol peak and...
Which compound gives the following spectra?
For the 1H-NMR assign all signals. interpret mol peak and base peak
in the mass spectrum if a mole peak exists. Assign at least two 13C
signals. How does the IR spectrum support your finding?
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1...
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and...
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and IV A) Only III and IV C) Only I 31) What is the IUPAC of the following compound? но B) 1,1,4-Trimethyl-2-cyclohexanol D) 3,3,6-Trimethylcyclohexanol A) 2,5,5-Trimethylcyclohexanol ) 1,4,4-Trimethyl-2-cyclohexanol 32) What is the IUPAC of the following compound? он A) (R)-2,2-Dimethyl-3-pentanol C) (S)-2,2-Dimethyl-3-pentanol B) (S)-1-tert-Butyl-1-propanol D) (R)-4,4-Dimethyl-3-pentanol 33) What is the common name of the following compound? A) Methyl sec-butyl ether C) Isobutyl methyl ether B)...
which Ca Hiz O₂ compound gives the following it NMR spectrum CA 34 SIH 4 hot...
which Ca Hiz O₂ compound gives the following it NMR spectrum CA 34 SIH 4 hot teflon 2) a) 1 6/2 c) 3 d) 4 Which of the following gives compounds a 'H #NMR spectrum consisting of a singlets and a 13C NMR of 3 sigpals? choose all that apply b) CH3 -CH3 CH3 Encu H3 CH3 HBC al H3- H₂4 CH3 CH3 -CH3 ScH3 H₃c
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret mol peak...
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret mol peak and base peak in the mass spectrum if a mole peak exists. Assign at least two 13C signals (8 pt) How does the IR spectrum support your findings? s, 3 H s, 3 H dd 1 니 d, 1 H s,1 H d, 1 H 8 7 6 3 2 0 ppm LOD sDo し000 5 Dd 4000 HAVENUNBERI-1
17) Which of the following ions gives a peak in the mass spectrum of 1-butanol? A)...
17) Which of the following ions gives a peak in the mass spectrum of 1-butanol? A) o CH3CH2CH=CHA B) CH3CH2CH=CH: C) CH, CH2CH=CHE D) CH3CH2CH=CHE E) none of the above
14. Which of the following reagents should be used to prepare tert-butyl ethyl ether a) tert-butyl bromide and sodium ethoxide b) tert-butyl alcohol and ethyl bromide c) tert-butyl alcohol and ethanol d) potassium tert-butoxide and ethyl bromide 15. What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4 16. What product is formed when methyloxirane is treated with ethylmannesium bromide followed by treatment with aqueous acid? A) 1-pentanol B) 2-pentanol C)...
Construct a simulated
proton-decoupled 13C NMR spectrum for tert-butyl alcohol. Drag the
resonance signal icon to the appropriate chemical shift positions.
Then label the box above each resonance signal with the
corresponding number of equivalent carbons. (Not all chemical shift
bins will be used.)
help please
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...
answer all please.
23. 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 Syl mechanism? A) Rate -k [t-BuBr] B) Rate = k [t-BuBr] [H,O] C) Rate k [H2O D) Rate k [t-BuBr] 24. Which of the following statements related to Ssl reactions is not true? A) The SN1 reaction can be described as a heterolytic bond cleavage followed by nucleophilic attack. B) Carbocations are electrophilic....
Which compound gives the following spectra?
For the 1H-NMR assign all signals. interpret mol peak and base peak
in the mass spectrum if a mole peak exists. Assign at least two 13C
signals. How does the IR spectrum support your finding?
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1...
30) Which of the following compounds is (are) symmetrical ethers? B)Only D) Only I, IIl, and IV A) Only III and IV C) Only I 31) What is the IUPAC of the following compound? но B) 1,1,4-Trimethyl-2-cyclohexanol D) 3,3,6-Trimethylcyclohexanol A) 2,5,5-Trimethylcyclohexanol ) 1,4,4-Trimethyl-2-cyclohexanol 32) What is the IUPAC of the following compound? он A) (R)-2,2-Dimethyl-3-pentanol C) (S)-2,2-Dimethyl-3-pentanol B) (S)-1-tert-Butyl-1-propanol D) (R)-4,4-Dimethyl-3-pentanol 33) What is the common name of the following compound? A) Methyl sec-butyl ether C) Isobutyl methyl ether B)...
which Ca Hiz O₂ compound gives the following it NMR spectrum CA 34 SIH 4 hot teflon 2) a) 1 6/2 c) 3 d) 4 Which of the following gives compounds a 'H #NMR spectrum consisting of a singlets and a 13C NMR of 3 sigpals? choose all that apply b) CH3 -CH3 CH3 Encu H3 CH3 HBC al H3- H₂4 CH3 CH3 -CH3 ScH3 H₃c
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret mol peak and base peak in the mass spectrum if a mole peak exists. Assign at least two 13C signals (8 pt) How does the IR spectrum support your findings? s, 3 H s, 3 H dd 1 니 d, 1 H s,1 H d, 1 H 8 7 6 3 2 0 ppm LOD sDo し000 5 Dd 4000 HAVENUNBERI-1
17) Which of the following ions gives a peak in the mass spectrum of 1-butanol? A) o CH3CH2CH=CHA B) CH3CH2CH=CH: C) CH, CH2CH=CHE D) CH3CH2CH=CHE E) none of the above
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