Why is the hydrolysis sensitivity of the esters such? The most reactive ester is number 1. Explain.
Homework Answers
The compound 1 is most reactive ester towards hydrolysis. This is because the presence of nitro group, an electron withdrawing group, decreases the electron density on benzene ring and increases the acidity of benzene ring and stabilizes the phenoixde ion.
The compound 3 is the least reactive ester towards hydrolysis. This is because the presence of methoxy group at benzene ring increases the electron density of benzene and destabilizes the stability of phenoxide ring.
The compound 2 is less reactive than compound 1 and more reactive than compound 3.
The order of reactivity towards hydrolysis is as
compound 1 > compound 2 > compound 3
Add Answer to:
Why is the hydrolysis sensitivity of the esters such? The most
reactive ester is number 1....
For each pair of esters below specify which undergoes basic hydrolysis faster. CO2CH3 _C02CH3 Ester a:...
For each pair of esters below specify which undergoes basic hydrolysis faster. CO2CH3 _C02CH3 Ester a: H3C0 Ester b: Na B: NEC- Ester a: CH3CO2CH(CH3)2 Ester b: CH3CO2C(CH3)3 -
(7 points) Explain why esters are more reactive towards nucleophilic acyl substitution compared to amides. Your...
(7 points) Explain why esters are more reactive towards nucleophilic acyl substitution compared to amides. Your answer should be clear and concise. Writing more than necessary only increases the odds of writing an incorrect statement, which could result in points off. nucleophilic acyl substitution Nu R X R Nu - - - - - - - - - - O RO R NO Ester Amide
The base-catalyzed hydrolysis of esters can proceed in different pathways depending on the structure of the ester and th...
The base-catalyzed hydrolysis of esters can proceed in different pathways depending on the structure of the ester and the solvent, pH and so on. Three types of mechanisms have been suggested, i.e. Bac2 Bal2 and Bal1 mechanisms. Write the detailed steps of each mechanism. Please suggest experiments that can be used to differentiate these mechanisms.(
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Rank the following compounds in order from most reactive to least reactive in a hydrolysis reaction. Lai Ph Ph O F3C CF3 A B С D E > > > most reactive least reactive ARAMA
Rank the following compounds in order from most reactive to least reactive in a hydrolysis reaction....
Rank the following compounds in order from most reactive to least reactive in a hydrolysis reaction. Ph Ph CF, А 00 с D E > > > most reactive least reactive AB с
Carboxylic acid esters can undergo acid catalyzed hydrolysis, neutral hydrolysis and base catalyzed hydrolysis. Below is...
Carboxylic acid esters can undergo acid catalyzed hydrolysis, neutral hydrolysis and base catalyzed hydrolysis. Below is a table with three structurally related carboxylic acid esters and the second order reaction rate constants for the acid-catalyzed mechanism (k_A) and the rate constant for the base-catalyzed mechanism (k_B). The difference between the three compounds is mainly the substitution of hydrogen atoms on R_1 with the more electronegative chlorine atoms. a) Explain why there is only a small change in k_A for the...
3. Give a brief explanation why acid chlorides are more reactive than esters in a nucleophilic...
3. Give a brief explanation why acid chlorides are more reactive than esters in a nucleophilic substitution reaction, like a polymerization. Grading Scheme
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Carboxylic Acids and Esters EXPERIMENT 22 OBSERVATIONS AND RESULTS Synthesis and Identification of an Ester: Esterification 1. Give the name and structure of the ester which you synthesized. What fruit did you associate with the odor of the ester? to noldsoinogs w to esar bnn eaman sd vio stolpi Look up the ester and its fruit sburce in your textbook. (If it is not in your textbook, ask your instructor.) Did you associate the ester with the right fruit? If...
The reactivity sequence of carboxylic acid derivatives (acyl halides, anhydrides, acids, esters, amides) changes with t...
The reactivity sequence of carboxylic acid derivatives (acyl halides, anhydrides, acids, esters, amides) changes with the substituent. Acyl chlorides are most reactive, amides are least reactive. 1) Explain in detail why the reactivity changes in that sequence, 2) Where do carboxylates fit in that sequence and why? How does that impact on the way carboxylic acid reactions need to run? 3) Where do thioesters, RC(-O)SMe and acyl phosphates, RC(-O)OPO2OR fit in that sequence. Explain your decision
The reactivity sequence of...
Arrange from least reactive to most reactive and explain why HO نیا سال له بله حمل...
Arrange from least reactive to most reactive and explain
why
HO نیا سال له بله حمل ميف - III IV V
For each pair of esters below specify which undergoes basic hydrolysis faster. CO2CH3 _C02CH3 Ester a: H3C0 Ester b: Na B: NEC- Ester a: CH3CO2CH(CH3)2 Ester b: CH3CO2C(CH3)3 -
(7 points) Explain why esters are more reactive towards nucleophilic acyl substitution compared to amides. Your answer should be clear and concise. Writing more than necessary only increases the odds of writing an incorrect statement, which could result in points off. nucleophilic acyl substitution Nu R X R Nu - - - - - - - - - - O RO R NO Ester Amide
Rank the following compounds in order from most reactive to least reactive in a hydrolysis reaction. Lai Ph Ph O F3C CF3 A B С D E > > > most reactive least reactive ARAMA
Rank the following compounds in order from most reactive to least reactive in a hydrolysis reaction. Ph Ph CF, А 00 с D E > > > most reactive least reactive AB с
Carboxylic acid esters can undergo acid catalyzed hydrolysis, neutral hydrolysis and base catalyzed hydrolysis. Below is a table with three structurally related carboxylic acid esters and the second order reaction rate constants for the acid-catalyzed mechanism (k_A) and the rate constant for the base-catalyzed mechanism (k_B). The difference between the three compounds is mainly the substitution of hydrogen atoms on R_1 with the more electronegative chlorine atoms. a) Explain why there is only a small change in k_A for the...
3. Give a brief explanation why acid chlorides are more reactive than esters in a nucleophilic substitution reaction, like a polymerization. Grading Scheme
Carboxylic Acids and Esters EXPERIMENT 22 OBSERVATIONS AND RESULTS Synthesis and Identification of an Ester: Esterification 1. Give the name and structure of the ester which you synthesized. What fruit did you associate with the odor of the ester? to noldsoinogs w to esar bnn eaman sd vio stolpi Look up the ester and its fruit sburce in your textbook. (If it is not in your textbook, ask your instructor.) Did you associate the ester with the right fruit? If...
The reactivity sequence of carboxylic acid derivatives (acyl halides, anhydrides, acids, esters, amides) changes with the substituent. Acyl chlorides are most reactive, amides are least reactive. 1) Explain in detail why the reactivity changes in that sequence, 2) Where do carboxylates fit in that sequence and why? How does that impact on the way carboxylic acid reactions need to run? 3) Where do thioesters, RC(-O)SMe and acyl phosphates, RC(-O)OPO2OR fit in that sequence. Explain your decision
The reactivity sequence of...
Arrange from least reactive to most reactive and explain
why
HO نیا سال له بله حمل ميف - III IV V
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