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1. Each of the following compounds can be prepared by a mixed aldol condensation reaction. Give...
23.3 Give the aldehyde or ketone precursor of the aldol condensation product (a) (b) H (c)...
23.3 Give the aldehyde or ketone precursor of the aldol condensation product (a) (b) H (c) (d) (e) 23.3 Give the aldehyde or ketone precursor of the aldol condensation product. where was the OH in the aldol product before loss of H,0 to give the enone?
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde...
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde Choose... Points out of 10.00 dium hydroxide Choose... P Flag question acetophenone Choose... ethanol Choose... Question 2 Not yet answered To purify the aldol condensation product you will have to recrystallize it from methanol. Give the steps in recrystallization procedure the appropriate order numbering. Points out of 10.00 The compound is kept under vacuum for 10 min Choose... + P Flag question The solution...
QUESTION 1 Which of the following will not undergo an aldol condensation reaction? butanal C 2-methylbutanal...
QUESTION 1 Which of the following will not undergo an aldol condensation reaction? butanal C 2-methylbutanal C 2,2-dimethylbutanal 3,3-dimethyl-2-butanone QUESTION 2 Which of the following constitutes a difference between an aldol and a Claisen condensation? basic conditions Ctetrahedral intermediate Cenolate ion formation protonation of the intermediate QUESTION 3 The product of an aldol condensation reaction is generally favored if Can unsymmetrical ketone and aldehyde are used Can unsymmetrical ester and ketone are used Cone of the carbonyl partners contains no...
Identify the electrophilic and nucleophilic carbons. Draw the B-hydroxy product of aldol condensation Draw the dehydration product of aldol condensation CHEMISTRY 204 CONDENSATION REACTIONS WORKSHEET...
Identify the electrophilic and nucleophilic carbons.
Draw the B-hydroxy product of aldol condensation
Draw the dehydration product of aldol condensation
CHEMISTRY 204 CONDENSATION REACTIONS WORKSHEET 1. For each of the reactions below: identify electrophilic and nucleophilic carbons draw the B-hydroxy product of aldol condensation . draw the dehydration product of aldol condensation. OH, H2O heat a) CH3CH2CHCH3CH2CH OH, H2O b) CH3CH2CH CH3CH2CH2CH heat еон, H2O heat CH OH, H2O d) heat CH3CH2CH OCH3, CH3OH H, H20 CH3CCH2CH2CH2CCH3 heat
CHEMISTRY 204...
Match the starting ketone or aldehyde with appropriate product of either aldol addition or adol condensation...
Match the starting ketone or aldehyde with appropriate product
of either aldol addition or adol condensation reaction.
A ketone or an aldehyde from the list undergo either aldol addition (in a case aldol addition product can not undergo further elimination) or aldol condensation reaction in protic solvent under basic catalysis. Match the starting ketone or aldehyde with appropriate product of either aldol addition or aldol condensation reaction propanal acetaldehyde 2-ethyl-2-hydroxy-hexanal 2-methylbuta ethanal Please answer 2-ethyl-4-methyl 2-hexenal Choose 2-methyl-2-pentenal 2-ethyl-3-hydroxy-2,4-dimethyl hexanal...
Which of the following molecules might be prepared as final product, by using an aldol condensation...
Which of the following molecules might be prepared as final product, by using an aldol condensation reaction to condense an aldehyde with itself? oby оно ou w
Be sure to answer all parts. Can the aldol addition product of the aldehyde below undergo an aldol condensation reactio...
Be sure to answer all parts.
Can the aldol addition product of the aldehyde below undergo an
aldol condensation reaction? Why or why not?
If a reaction occurs, draw the structure of the aldol
condensation product. If not, write NR.
Be sure to answer all parts. Can the aldol addition product of the aldehyde below undergo an aldol condensation reaction? Why or why not? If a reaction occurs, draw the structure of the aldol condensation product. If not, write NR....
la) Consider the mixed aldol condensation reaction of 1-methylcyclopentane-1-carbaldehyde (shown below) and 3,3-dimethyl-2-butanone (shown below) in...
la) Consider the mixed aldol condensation reaction of 1-methylcyclopentane-1-carbaldehyde (shown below) and 3,3-dimethyl-2-butanone (shown below) in the presence of sodium hydroxide Provide the expected major MIXED aldol condensation product for this reaction (can exist as E or Z isomer so you can draw either) b) Would you have to heat the reaction mixture in order for the reaction to form the aldol condensation product? Why or wh y not? 2) Consider the mixed aldol condensation reaction of 3,3-dimethyl-2-butanone (shown in...
There are several variations of the Aldol reaction. Which of the following types of reactants leads...
There are several variations of the Aldol reaction. Which of the following types of reactants leads to only one possible product with the Aldol condensation reaction? a. Two different aldehydes with alpha-hydrogens are able to form a single aldol condensation product. b. Two different ketones with alpha-hydrogens are able to form a single aldol condensation product. c. Any aldehyde and ketone mixed together can react to form a single condensation product. d. Any pair of aldehyde or ketone reactants where...
3) The following compounds can be made by either an Aldol or a Claisen condensation. In...
3) The following compounds can be made by either an Aldol or a Claisen condensation. In each case, indicate whether the product is as result of an Aldol or a Claisen condensation AND then draw the appropriate starting material(s) that would be used to form the product. OEt (B) (D) O Et
23.3 Give the aldehyde or ketone precursor of the aldol condensation product (a) (b) H (c) (d) (e) 23.3 Give the aldehyde or ketone precursor of the aldol condensation product. where was the OH in the aldol product before loss of H,0 to give the enone?
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde Choose... Points out of 10.00 dium hydroxide Choose... P Flag question acetophenone Choose... ethanol Choose... Question 2 Not yet answered To purify the aldol condensation product you will have to recrystallize it from methanol. Give the steps in recrystallization procedure the appropriate order numbering. Points out of 10.00 The compound is kept under vacuum for 10 min Choose... + P Flag question The solution...
QUESTION 1 Which of the following will not undergo an aldol condensation reaction? butanal C 2-methylbutanal C 2,2-dimethylbutanal 3,3-dimethyl-2-butanone QUESTION 2 Which of the following constitutes a difference between an aldol and a Claisen condensation? basic conditions Ctetrahedral intermediate Cenolate ion formation protonation of the intermediate QUESTION 3 The product of an aldol condensation reaction is generally favored if Can unsymmetrical ketone and aldehyde are used Can unsymmetrical ester and ketone are used Cone of the carbonyl partners contains no...
Identify the electrophilic and nucleophilic carbons.
Draw the B-hydroxy product of aldol condensation
Draw the dehydration product of aldol condensation
CHEMISTRY 204 CONDENSATION REACTIONS WORKSHEET 1. For each of the reactions below: identify electrophilic and nucleophilic carbons draw the B-hydroxy product of aldol condensation . draw the dehydration product of aldol condensation. OH, H2O heat a) CH3CH2CHCH3CH2CH OH, H2O b) CH3CH2CH CH3CH2CH2CH heat еон, H2O heat CH OH, H2O d) heat CH3CH2CH OCH3, CH3OH H, H20 CH3CCH2CH2CH2CCH3 heat
CHEMISTRY 204...
Match the starting ketone or aldehyde with appropriate product
of either aldol addition or adol condensation reaction.
A ketone or an aldehyde from the list undergo either aldol addition (in a case aldol addition product can not undergo further elimination) or aldol condensation reaction in protic solvent under basic catalysis. Match the starting ketone or aldehyde with appropriate product of either aldol addition or aldol condensation reaction propanal acetaldehyde 2-ethyl-2-hydroxy-hexanal 2-methylbuta ethanal Please answer 2-ethyl-4-methyl 2-hexenal Choose 2-methyl-2-pentenal 2-ethyl-3-hydroxy-2,4-dimethyl hexanal...
Which of the following molecules might be prepared as final product, by using an aldol condensation reaction to condense an aldehyde with itself? oby оно ou w
Be sure to answer all parts.
Can the aldol addition product of the aldehyde below undergo an
aldol condensation reaction? Why or why not?
If a reaction occurs, draw the structure of the aldol
condensation product. If not, write NR.
Be sure to answer all parts. Can the aldol addition product of the aldehyde below undergo an aldol condensation reaction? Why or why not? If a reaction occurs, draw the structure of the aldol condensation product. If not, write NR....
la) Consider the mixed aldol condensation reaction of 1-methylcyclopentane-1-carbaldehyde (shown below) and 3,3-dimethyl-2-butanone (shown below) in the presence of sodium hydroxide Provide the expected major MIXED aldol condensation product for this reaction (can exist as E or Z isomer so you can draw either) b) Would you have to heat the reaction mixture in order for the reaction to form the aldol condensation product? Why or wh y not? 2) Consider the mixed aldol condensation reaction of 3,3-dimethyl-2-butanone (shown in...
There are several variations of the Aldol reaction. Which of the following types of reactants leads to only one possible product with the Aldol condensation reaction? a. Two different aldehydes with alpha-hydrogens are able to form a single aldol condensation product. b. Two different ketones with alpha-hydrogens are able to form a single aldol condensation product. c. Any aldehyde and ketone mixed together can react to form a single condensation product. d. Any pair of aldehyde or ketone reactants where...
3) The following compounds can be made by either an Aldol or a Claisen condensation. In each case, indicate whether the product is as result of an Aldol or a Claisen condensation AND then draw the appropriate starting material(s) that would be used to form the product. OEt (B) (D) O Et
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