5. Please determine the double
bond stereochemistry for the following molecules. (a) A: E; B: E
(b) A: E; B: Z (c) A: Z; B: Z (d) A: Z; B: E 6. What would be the
final major product (or products) of the following reaction
sequence? Consider substitution pathways, only. (a) (b) (c) (d) (e)
an equal mixture of (c) and (d) would be isolated 7. What would be
the first step in the dehydration of an alcohol in sulfuric acid?
(a) loss of hydroxide (OH- ) (b) deprotonation of the alcohol (c)
nucleophilic attack by the OH group on the sulfur of H2SO4 (d)
protonation of the alcohol 8. Which of the following alkyl halides
would be the most reactive in an E2 reaction? (a) CH3Br (b) (c) (d)
HO H CH3 Br F Cl NH2 A B Br 1. NaCl 2. NaI 3. NaOH ? 4. PBr3 Br Br
Br Br OH H2SO4 Br Br Br
Homework Answers
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5. Please determine the double
bond stereochemistry for the following molecules. (a) A: E; B: E...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions s...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether...
Which of the following alkyl halides would be the least reactive
substrate in a Williamson ether synthesis (reaction with NaOEt ;
sodium
alkoxides to form ethers)?
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether synthesis (reaction with NaOEt ; sodium alkoxides to form ethers)? C) CH3CH(CH3)CH3 B) CH3CHCHZ A) CH3CH Br Br D) CHCHCHCHC D) CH3CH2CHCH2CH3 E) CHCI Hai
Question 17 Which S N2 reaction will occur most rapidly in a mixture of water and...
Question 17 Which S N2 reaction will occur most rapidly in a mixture of water and ethanol? A. Br + CH3CH2-F- CH3CH2-Br + F B.1+ CH3CH2-C1 CH3CH2-1 + CI" C.1+ CH3CH2-Br CH3CH2-1 + Br" D. Br+ + CH3CH2-C1- CH3CH2-Br + Cl- E.1 + CH3CH2-F- CH3CH2-1 + F Question 18 Which nucleophilic substitution reaction is not likely to occur? A. 1- + CH3CH2-OH CH3CH2-1 + OH- B. OH + CH3CH2-C1 CH3CH2-OH + CI- C.1- + CH3CH2-Br CH3CH2-1 + Br- D.CH30- +...
please hurry Jestion 13 Coich of the following is the product of the following S2 reaction...
please hurry
Jestion 13 Coich of the following is the product of the following S2 reaction NaCN NC NC. NC" B. D. Question 14 Rank the following substrates from most to least reactive in an Sul reaction. A. B C D. A. A>B>C>D B. A>B>D>c C. D>A>B>c D. D>C>B>A Question 15 Which of the following is a good leaving group? A. -OH В. -СН, C. -Br D. -NH2 Question 16 Which of the following alkyl halides would likely undergo rearrangement...
9. (20pts) For each pair of molecules, circle the one with the indicated property: a) the...
9. (20pts) For each pair of molecules, circle the one with the indicated property: a) the better nucleophile in MeCN b) the better nucleophile in CH3OH CH3S or CH30 c) the ion that will give the higher substitution to elimination product ratio CH3S or CH30 Won d) the more reactive alkyl halide in a solvolysis reaction aior e) the more reactive alcohol towards substitution — он оr f) the more reactive alkyl halide in an E2 reaction balt Br g)...
Which of the following molecules possess both stereogenic carbons and is a meso compound? For the...
Which of the following molecules possess both stereogenic
carbons and is a meso compound?
For the following molecule, which statement is correct
Which of the following will NOT increase the rate of an SN2
reaction?
6) Which of the following molecules possess both stereogenic carbons and is a meso compound? (I mark) CH3 Br Н- -ОН Н- -ОН Br Br Н. Br -OH НС Н CH2CH3 Molecule B Molecule D Molecule A Molecule C a) Molecule A b) Molecule B...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl halides are addition and elimination B) The characteristic reactions of alkyl halides are addition and substitution C) The characteristic reactions of alkyl halides are elimination and substitution D) The characteristic reactions of alkyl halides are oxidation and reduction. 2. The reaction of 1-bromobutane with sodium hydroxide affords the substitution product 1-butanol. What would happen to the rate of the reaction if the concentration of...
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...
1. Which of the following alkyl halides (a-e) will only produce the alkene below when undergoing...
1. Which of the following alkyl halides (a-e) will only produce the alkene below when undergoing an E2 reaction? Br (a) (b) (c) O (d) (e) 2. Complete the following reactions by determining the major product (formed in the highest yield) that would be formed. NaSH DMF Br t-BuOK DMSO
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
Which of the following alkyl halides would be the least reactive
substrate in a Williamson ether synthesis (reaction with NaOEt ;
sodium
alkoxides to form ethers)?
Which of the following alkyl halides would be the least reactive substrate in a Williamson ether synthesis (reaction with NaOEt ; sodium alkoxides to form ethers)? C) CH3CH(CH3)CH3 B) CH3CHCHZ A) CH3CH Br Br D) CHCHCHCHC D) CH3CH2CHCH2CH3 E) CHCI Hai
Question 17 Which S N2 reaction will occur most rapidly in a mixture of water and ethanol? A. Br + CH3CH2-F- CH3CH2-Br + F B.1+ CH3CH2-C1 CH3CH2-1 + CI" C.1+ CH3CH2-Br CH3CH2-1 + Br" D. Br+ + CH3CH2-C1- CH3CH2-Br + Cl- E.1 + CH3CH2-F- CH3CH2-1 + F Question 18 Which nucleophilic substitution reaction is not likely to occur? A. 1- + CH3CH2-OH CH3CH2-1 + OH- B. OH + CH3CH2-C1 CH3CH2-OH + CI- C.1- + CH3CH2-Br CH3CH2-1 + Br- D.CH30- +...
please hurry
Jestion 13 Coich of the following is the product of the following S2 reaction NaCN NC NC. NC" B. D. Question 14 Rank the following substrates from most to least reactive in an Sul reaction. A. B C D. A. A>B>C>D B. A>B>D>c C. D>A>B>c D. D>C>B>A Question 15 Which of the following is a good leaving group? A. -OH В. -СН, C. -Br D. -NH2 Question 16 Which of the following alkyl halides would likely undergo rearrangement...
9. (20pts) For each pair of molecules, circle the one with the indicated property: a) the better nucleophile in MeCN b) the better nucleophile in CH3OH CH3S or CH30 c) the ion that will give the higher substitution to elimination product ratio CH3S or CH30 Won d) the more reactive alkyl halide in a solvolysis reaction aior e) the more reactive alcohol towards substitution — он оr f) the more reactive alkyl halide in an E2 reaction balt Br g)...
Which of the following molecules possess both stereogenic
carbons and is a meso compound?
For the following molecule, which statement is correct
Which of the following will NOT increase the rate of an SN2
reaction?
6) Which of the following molecules possess both stereogenic carbons and is a meso compound? (I mark) CH3 Br Н- -ОН Н- -ОН Br Br Н. Br -OH НС Н CH2CH3 Molecule B Molecule D Molecule A Molecule C a) Molecule A b) Molecule B...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl halides are addition and elimination B) The characteristic reactions of alkyl halides are addition and substitution C) The characteristic reactions of alkyl halides are elimination and substitution D) The characteristic reactions of alkyl halides are oxidation and reduction. 2. The reaction of 1-bromobutane with sodium hydroxide affords the substitution product 1-butanol. What would happen to the rate of the reaction if the concentration of...
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...
1. Which of the following alkyl halides (a-e) will only produce the alkene below when undergoing an E2 reaction? Br (a) (b) (c) O (d) (e) 2. Complete the following reactions by determining the major product (formed in the highest yield) that would be formed. NaSH DMF Br t-BuOK DMSO
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