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(7 pts) The acylation of pyrrole shown occurs faster than the acylation of benzene. a) Propose...
8 This synthesis requires more than 1 step-propose a route giving all reagents (include solvents) required...
8 This synthesis requires more than 1 step-propose a route giving all reagents (include solvents) required and drawing the structure of all stable, neutral intermediate compounds. [6 pts 9. Nether of the reactions drawn below will give the product shown. Draw the product that will form instead giving a mechanism as an explanation. [10 pts) HBr ether Br 11. Are these statements True or False? (2 pts each = 4 pts] a) Fluoride ion is a more reactive nucleophile in...
Propose a detailed mechanism for the following transformation. Use curved arrows to show movement of electron...
Propose a detailed mechanism for the following transformation. Use curved arrows to show movement of electron pairs and be sure to draw structures of all important reaction intexmediates, State the name of the reaction below. NaOH, EtOH, A OCH3 OCH (11 marks] Draw a reaction energy diagram, and label the product (P), reactant (R), transition states CTS. TS, etc), intermediates (INT1, INT2, etc.) and activation energies (AG', AG , etc.) for a reaction with the following criteria: i. A three-step,...
PLEASE ANSWER ALL A-G, will give thumbs up!! FOR A, just need explanation why reaction occurs...
PLEASE ANSWER ALL A-G, will
give thumbs up!! FOR A, just need explanation why reaction occurs
at C2 position rather than C3, already have mechanism drawn...
PLEASE EXPLAIN OR AT LEAST
JUST ANSWER ALL ASAP, BEFORE TOMORROW!!
10. Furan, an aromatic heterocycle, is capable of undergoing electrophilic aromatic substitution. When furan is treated with an acid chloride in the presence of a Lewis acid, Friedel-Crafts acylation occurs in which the electrophile is installed exclusively at the C2 position. Provide...
1. In both the sodium iodide test and the silver nitrate test, why does 2-bromobutane react faster...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
Question 12 6 pts Explain using drawings why acetaldehyde reacts faster than acetone to nucleophilic acyl...
Question 12 6 pts Explain using drawings why acetaldehyde reacts faster than acetone to nucleophilic acyl addition. Include your answer sheet upload to Canvas in the Assignments folder or email your answer to Dr. Berger. Note: there may be more than one way to answer this question. Only one correct explanation is required. For partial credit draw acetaldehyde and acetone
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
22 Name: ID: A 4. Propose a synthetic route which includes more than one step to...
22 Name: ID: A 4. Propose a synthetic route which includes more than one step to carry out the following transformation (6 pts) vi ?vi S. Briefly explain why the following reaction would be unsuccessful. (6 pts) 6. Fill in the missing reagents and intermediates to complete the synthesis below. (8 pts) 1. NO 1. NaOH
3. Propose a plausible mechanism for the following transformation (3 pts) 4. Two of the ketones s...
3. Propose a plausible mechanism for the following transformation (3 pts) 4. Two of the ketones shown below have higher dipole moments than the rest of the field. Identify the two compounds with high dipole moments. One ketone has the lowest dipole moment. Which one? Provide a rational to justify your selection. You must use aromaticity arguments (5 pts) 5. Rank the hydrogens in order of lowest to highest pKa. Explain your answer using aromaticity concepts (4 pts) 6. Using...
enthyl chloride and neomenthyl chloride have the structures shown below, One of these stercoisomers tindergoes elimination...
enthyl chloride and neomenthyl chloride have the structures shown below, One of these stercoisomers tindergoes elimination upon treatment with sodium ethoxide in ethanol much more readily than the odher. Answer the following questions about these comparison of the reactions of these two molecules. Molecular models will help here.) or HOCH CH H3C H3C Cl H3C Cl Product Menthyl chloride Neomenthyl chloride of mechanism is commonly employed to describe the given reaction conditions? (2 pts) /2 b) Draw the most stable...
7-9 please! 4 7. One of the following is much more acidic than the other. Circle...
7-9 please!
4 7. One of the following is much more acidic than the other. Circle the more acidic one, and explain very briefly why? (3 points) H Acidity of one pf the H's shown H H 8. For the reaction show a. Write "1,2" underneath and "1,4" underneath the appropriate products. (1 pt) b. Write "thermodynamic" underneath the appropriate "thermodynamic control" product (1 pt) c. Draw the mechanism for the reaction, using formal arrow pushing. Draw both resonance structures...
8 This synthesis requires more than 1 step-propose a route giving all reagents (include solvents) required and drawing the structure of all stable, neutral intermediate compounds. [6 pts 9. Nether of the reactions drawn below will give the product shown. Draw the product that will form instead giving a mechanism as an explanation. [10 pts) HBr ether Br 11. Are these statements True or False? (2 pts each = 4 pts] a) Fluoride ion is a more reactive nucleophile in...
Propose a detailed mechanism for the following transformation. Use curved arrows to show movement of electron pairs and be sure to draw structures of all important reaction intexmediates, State the name of the reaction below. NaOH, EtOH, A OCH3 OCH (11 marks] Draw a reaction energy diagram, and label the product (P), reactant (R), transition states CTS. TS, etc), intermediates (INT1, INT2, etc.) and activation energies (AG', AG , etc.) for a reaction with the following criteria: i. A three-step,...
PLEASE ANSWER ALL A-G, will
give thumbs up!! FOR A, just need explanation why reaction occurs
at C2 position rather than C3, already have mechanism drawn...
PLEASE EXPLAIN OR AT LEAST
JUST ANSWER ALL ASAP, BEFORE TOMORROW!!
10. Furan, an aromatic heterocycle, is capable of undergoing electrophilic aromatic substitution. When furan is treated with an acid chloride in the presence of a Lewis acid, Friedel-Crafts acylation occurs in which the electrophile is installed exclusively at the C2 position. Provide...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
Question 12 6 pts Explain using drawings why acetaldehyde reacts faster than acetone to nucleophilic acyl addition. Include your answer sheet upload to Canvas in the Assignments folder or email your answer to Dr. Berger. Note: there may be more than one way to answer this question. Only one correct explanation is required. For partial credit draw acetaldehyde and acetone
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
22 Name: ID: A 4. Propose a synthetic route which includes more than one step to carry out the following transformation (6 pts) vi ?vi S. Briefly explain why the following reaction would be unsuccessful. (6 pts) 6. Fill in the missing reagents and intermediates to complete the synthesis below. (8 pts) 1. NO 1. NaOH
3. Propose a plausible mechanism for the following transformation (3 pts) 4. Two of the ketones shown below have higher dipole moments than the rest of the field. Identify the two compounds with high dipole moments. One ketone has the lowest dipole moment. Which one? Provide a rational to justify your selection. You must use aromaticity arguments (5 pts) 5. Rank the hydrogens in order of lowest to highest pKa. Explain your answer using aromaticity concepts (4 pts) 6. Using...
enthyl chloride and neomenthyl chloride have the structures shown below, One of these stercoisomers tindergoes elimination upon treatment with sodium ethoxide in ethanol much more readily than the odher. Answer the following questions about these comparison of the reactions of these two molecules. Molecular models will help here.) or HOCH CH H3C H3C Cl H3C Cl Product Menthyl chloride Neomenthyl chloride of mechanism is commonly employed to describe the given reaction conditions? (2 pts) /2 b) Draw the most stable...
7-9 please!
4 7. One of the following is much more acidic than the other. Circle the more acidic one, and explain very briefly why? (3 points) H Acidity of one pf the H's shown H H 8. For the reaction show a. Write "1,2" underneath and "1,4" underneath the appropriate products. (1 pt) b. Write "thermodynamic" underneath the appropriate "thermodynamic control" product (1 pt) c. Draw the mechanism for the reaction, using formal arrow pushing. Draw both resonance structures...
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