a) Ethyl pentanoate
Interpretation:
Whether ethyl pentanoate can be prepared by malonic ester synthesis is to be stated. If so the alkyl halide to be used is to be stated.
Concept introduction:
Malonic ester synthesis is used to prepare carboxylic acids from
To state:
Whether ethyl pentanoate can be prepared by malonic ester synthesis and to indicate the alkyl halide to be used.
b) Ethyl 3-methylbutanoate
Interpretation:
Whether ethyl 3-methylbutaonate can be prepared by malonic ester synthesis is to be stated. If so the alkyl halide to be used is to be stated.
Concept introduction:
Malonic ester synthesis is used to prepare carboxylic acids from alkyl halides. The ester is converted into its enolate ion which then attacks the alkyl halide. Hydrolysis and decarboxylation of the alkylated product yield the carboxylic acid which has two carbon extra than the alkyl halide. The acid can then be converted into ester by treating with ethanol in the presence of HCl.
To state:
Whether ethyl 3-methylbutanoate can be prepared by malonic ester synthesis and to indicate the alkyl halide to be used.
c) Ethyl 2-methylbutanoate
Interpretation:
Whether ethyl 2-methylbutanoate can be prepared by malonic ester synthesis is to be stated. If so the alkyl halide to be used is to be stated.
Concept introduction:
Malonic ester synthesis is used to prepare carboxylic acids from alkyl halides. The ester is converted into its enolate ion which then attacks the alkyl halide. Hydrolysis and decarboxylation of the alkylated product yield the carboxylic acid which has two carbon extra than the alkyl halide. The acid can then be converted into ester by treating with ethanol in the presence of HCl.
To state:
Whether ethyl 2-methylbutanoate can be prepared by malonic ester synthesis and to indicate the alkyl halide to be used.
d) Ethyl 2,2-dimethylpropanoate
Interpretation:
Whether ethyl 2,2-dimethylpropanoate can be prepared by malonic ester synthesis is to be stated. If so the alkyl halide to be used is to be stated.
Concept introduction:
Malonic ester synthesis is used to prepare carboxylic acids from alkyl halides. The ester is converted into its enolate ion which then attacks the alkyl halide. Hydrolysis and decarboxylation of the alkylated product yield the carboxylic acid which has two carbon extra than the alkyl halide. The acid can then be converted into ester by treating with ethanol in the presence of HCl.
To state:
Whether ethyl 2,2-dimethylpropanoate can be prepared by malonic ester synthesis and to indicate the alkyl halide to be used.
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Chapter 22 Solutions
EBK ORGANIC CHEMISTRY
- Which of the following would you expect to be aromatic? Please provide a detailed explanation.arrow_forwardDraw the enantiomer and diastereomers of the following molecule. Label each type of stereoisomers. Label each chiral center as R or S. HOarrow_forwardWhich diene and dienophile would you choose to synthesize the following compound? Please provide a detailed explanation. Please include a drawing showing the mechanism of the synthesis. Please also explain why it is the correct diene and dienophile.arrow_forward
- Using the sketcher below, draw the structure of N-ethyldecylamine. Answer: 0 ୨୫) . 始 {n [ ]t ?arrow_forwardWhich of the following would you expect to be aromatic? Please provide a detailed explanation.arrow_forwardIdentify the characteristic signals that you would expect in the diagnostic region of an IR spectrum of each of the following compounds. a. H₂N b.arrow_forward
- What is the lowest energy chair for the following cyclohexane? ' || || a. b. " " d.arrow_forwardAnswer the following questions using the below figure: Potential Energy ри Reaction Progress a. How many transition states occur in this reaction? b. How many intermediates occur in this reaction? c. Is this reaction spontaneous or nonspontaneous? d. Does this reaction have a positive or negative AG? e. Label the activation energy(ies).arrow_forwardDraw the following molecule as a chair in the lowest energy conformation. Then perform a chair flip. Brarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning