Some mechanism questions – another look at substitution and elimination mechanisms.
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Some mechanism questions – another look at substitution and
elimination mechanisms.
2. Some mechanism questions -...
Questions 2-10 please!! 1) A substitution reaction is: [2] a) A reaction during which an OH...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
Please help substitution mechanisms 1.) 2.) Question 14 Not complete Marked out of 1.00 Determine the...
Please help substitution mechanisms
1.)
2.)
Question 14 Not complete Marked out of 1.00 Determine the mechanism of the following substitution reaction and then draw the product(s). Which of the following statements is not true about the mechanism and/or products? Flag question CI LiCN Select one: a. The product is optically active. b. All of these statements are true. O Oc. A proton transfer step is not involved in the mechanism. d. A carbocation intermediate is in the mechanism. o...
"Complete the reactions showing all Major Products, both substitution and elimination, that can form based on...
"Complete the reactions showing all Major Products, both
substitution and elimination, that can form based on the reaction
conditions. Be sure to show stereochemistry where
appropriate. Fill in each table with reaction conditions."
w upiete the following reactions showing all products, both substitution and elimination, that can form, then circle the MAJOR Foduct(s). Under each reaction, draw the step by step mechanism showing how each porduct is formed. Show or indicate stereochemistry where appropriate. Fill in each table with reaction...
pathway, substitution or elimination, will predominate and so a mixture of products is frequently observed. In...
pathway, substitution or elimination, will predominate and so a mixture of products is frequently observed. In contrast to the El reaction which involves a carbocation intermediate, the ElcB reaction takes place through a carbanion intermediate. Base-induced abstraction of a proton in a slow, rate-limiting step gives an anion which then expels the leaving group from the adjacent carbon. The reaction is particularly suited to the elimination of substrates which contain poor leaving groups two carbons removed from a carbonyl group....
ted in ethanol Give the substitution and elimination products 1-iodo-1-phenylcyclopentane hea 3. Student Learning Objective: Predict...
ted in ethanol Give the substitution and elimination products 1-iodo-1-phenylcyclopentane hea 3. Student Learning Objective: Predict the products of dehydrohalogenation and use Zaitsev's rule to predict the major and minor products 7.11: Positional Orientation of Elimination: Zaitsev's Rule Problem-Solving Hint: 1. Zaitsev is transliterated from the Russian name, and may also be spelled Saytzeff Whenever a carbocation has the positive charge on a carbon atom next to a more highiy substituted carbon, consider whether a rearrangement might occur. 2. When...
Find in a ectutpapor pudisr substitution or an elimination reaction and answer the following questions regarding...
Find in a ectutpapor pudisr substitution or an elimination reaction and answer the following questions regarding the reaction O ne, a nucleophilic chosen: a) What is the dominant mechanism in the proposed reaction? b) Circle the nucleophilic center in the reaction c) Circle the electrophilic center in the reaction d) Using curve arrows show the flow of electrons that accounts for the formation of the reaction product(s).
7. S-2-chloropentane is treated with sodium propooxide Cl Na A. How is sodium propoxide created from...
7. S-2-chloropentane is treated with sodium propooxide Cl Na A. How is sodium propoxide created from propanol? B. This may result in substitution or elimination reactions. Are these unimolecular (Sy1/E1) or bimolecular (SN2/ E2) conditions? C. In the mechanism for the substitution reaction, the propoxide ion is acting as a nucleophile. What role does it play in the elimination mechanism? D. Draw the substitution product and the 3 elimination products. Identify the major and minor elimination products E. Would you...
theres two questions 6 AND 7 6. Sn1 substitution and El elimination frequently compete in the...
theres two questions 6 AND 7
6. Sn1 substitution and El elimination frequently compete in the same reaction. 1. Propose a mechanism and predict the products for the solvolysis of 2-bromo-2,3,3- trimethylbutane in methanol. b. Compare the function of the solvent (methanol) in the El and SN1 reactions. 7. When the following compound is heated in methanol, several different products are formed. Propose mechanisms to account for the four products shown. CH Br CHE heat CHOH -OCH; + OCH 0.finlain...
C. Indicate which is the late-detemning step. d. Is it the same mechanism as in question...
C. Indicate which is the late-detemning step. d. Is it the same mechanism as in question 1? Why or why not? 3. Explain why El and Sx1 mechanisms follow first order reaction kinetics, whereas E2 and SN2 mechanisms follow second order reaction kinetics. 4. Which is the better nucleophile in a protic solvent: chloride ion or bromide ion? Try to explain this in terms of the nature of the chloride ion and the bromide ion. 5. For the synthesis of...
2. When (1R, 2R)-1-bromo-2-methylcyclohexane reacts with lithium methoxide in methanol, both substitution and elimination reactions occur...
2. When (1R, 2R)-1-bromo-2-methylcyclohexane reacts with lithium methoxide in methanol, both substitution and elimination reactions occur to produce three unique products. What are the structures of the three products produced by this reaction? sepenbare CHOLE сно CH3 3. When (R)-3-mesyl-3-ethyloctane reacts with potassium hydroxide in aqueous THF elimination occurs to produce three unique alkene products. What are the structures of the three products produced by this reaction? MsOCH.CH HOK THF/H20 4. When (S)-2-fluoro-2-iodobutane reacts with hydroxide ion in aqueous THF,...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
Please help substitution mechanisms
1.)
2.)
Question 14 Not complete Marked out of 1.00 Determine the mechanism of the following substitution reaction and then draw the product(s). Which of the following statements is not true about the mechanism and/or products? Flag question CI LiCN Select one: a. The product is optically active. b. All of these statements are true. O Oc. A proton transfer step is not involved in the mechanism. d. A carbocation intermediate is in the mechanism. o...
"Complete the reactions showing all Major Products, both
substitution and elimination, that can form based on the reaction
conditions. Be sure to show stereochemistry where
appropriate. Fill in each table with reaction conditions."
w upiete the following reactions showing all products, both substitution and elimination, that can form, then circle the MAJOR Foduct(s). Under each reaction, draw the step by step mechanism showing how each porduct is formed. Show or indicate stereochemistry where appropriate. Fill in each table with reaction...
pathway, substitution or elimination, will predominate and so a mixture of products is frequently observed. In contrast to the El reaction which involves a carbocation intermediate, the ElcB reaction takes place through a carbanion intermediate. Base-induced abstraction of a proton in a slow, rate-limiting step gives an anion which then expels the leaving group from the adjacent carbon. The reaction is particularly suited to the elimination of substrates which contain poor leaving groups two carbons removed from a carbonyl group....
ted in ethanol Give the substitution and elimination products 1-iodo-1-phenylcyclopentane hea 3. Student Learning Objective: Predict the products of dehydrohalogenation and use Zaitsev's rule to predict the major and minor products 7.11: Positional Orientation of Elimination: Zaitsev's Rule Problem-Solving Hint: 1. Zaitsev is transliterated from the Russian name, and may also be spelled Saytzeff Whenever a carbocation has the positive charge on a carbon atom next to a more highiy substituted carbon, consider whether a rearrangement might occur. 2. When...
Find in a ectutpapor pudisr substitution or an elimination reaction and answer the following questions regarding the reaction O ne, a nucleophilic chosen: a) What is the dominant mechanism in the proposed reaction? b) Circle the nucleophilic center in the reaction c) Circle the electrophilic center in the reaction d) Using curve arrows show the flow of electrons that accounts for the formation of the reaction product(s).
7. S-2-chloropentane is treated with sodium propooxide Cl Na A. How is sodium propoxide created from propanol? B. This may result in substitution or elimination reactions. Are these unimolecular (Sy1/E1) or bimolecular (SN2/ E2) conditions? C. In the mechanism for the substitution reaction, the propoxide ion is acting as a nucleophile. What role does it play in the elimination mechanism? D. Draw the substitution product and the 3 elimination products. Identify the major and minor elimination products E. Would you...
theres two questions 6 AND 7
6. Sn1 substitution and El elimination frequently compete in the same reaction. 1. Propose a mechanism and predict the products for the solvolysis of 2-bromo-2,3,3- trimethylbutane in methanol. b. Compare the function of the solvent (methanol) in the El and SN1 reactions. 7. When the following compound is heated in methanol, several different products are formed. Propose mechanisms to account for the four products shown. CH Br CHE heat CHOH -OCH; + OCH 0.finlain...
C. Indicate which is the late-detemning step. d. Is it the same mechanism as in question 1? Why or why not? 3. Explain why El and Sx1 mechanisms follow first order reaction kinetics, whereas E2 and SN2 mechanisms follow second order reaction kinetics. 4. Which is the better nucleophile in a protic solvent: chloride ion or bromide ion? Try to explain this in terms of the nature of the chloride ion and the bromide ion. 5. For the synthesis of...
2. When (1R, 2R)-1-bromo-2-methylcyclohexane reacts with lithium methoxide in methanol, both substitution and elimination reactions occur to produce three unique products. What are the structures of the three products produced by this reaction? sepenbare CHOLE сно CH3 3. When (R)-3-mesyl-3-ethyloctane reacts with potassium hydroxide in aqueous THF elimination occurs to produce three unique alkene products. What are the structures of the three products produced by this reaction? MsOCH.CH HOK THF/H20 4. When (S)-2-fluoro-2-iodobutane reacts with hydroxide ion in aqueous THF,...
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