a)
Interpretation:
To prepare the esters for the given corresponding acids.
Concept introduction:
We introspect the two parts of the given ester.
b)
Interpretation:
To prepare the esters for the given corresponding acids.
Concept introduction:
We begin by observing the two parts of the tanget ester given. The acyl part comes from the carboxylic acid while the OR’ part viz –OCH3 comes from the alcohol. In this example, the tanget ester given is methyl butanoate .so it can be prepared by treating butanoic acid with methanol.
c)
Interpretation:
To prepare the esters for the given corresponding acids.
Concept introduction:
We observe the two parts of the tanget ester molecule given. Its acyl part comes from the carboxylic acid while the OR’ part viz –O-CH(CH3)2 comes from the alcohol.
In this example, the tanget ester given is isopropyl cyclopentane carboxylate. So it can be prepared by treating cyclopentone carboxylic acid with isopropyl alcohol.
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Chapter 21 Solutions
Organic Chemistry
- Explain how the electrophilic substitution sequences for synthesizing the following compounds from phenol.arrow_forwardPredict the products formed when cyclohexanone reacts with the following reagents. h) sodium acetylide, then mild H3O+arrow_forwardPrepare the following compounds starting from benzaldehyde and the appropriate ketone. Provide reactions for preparing the ketones starting from aromatic hydrocarbon compounds.arrow_forward
- 1. NaOEt CO₂Et 2. H3O+ 3. heat Br H3C CO₂H CO2 H3C CO₂Et The malonic ester synthesis is a carbonyl alkylation reaction. It is used to prepare carboxylic acids from primary alkyl halides, lengthening the carbon chain by two atoms. Thus, the product can be visualized as being a "substituted acetic acid." The reaction consists of three steps: generation of the enolate anion followed by SN2 reaction with a primary alkyl halide, ester hydrolysis under acid conditions, and decarboxylation. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions 22 CX EtO₂C EtO₂C HOCH2CH3 HOCH2CH3 EtO₂C EtO₂Carrow_forward1. NaOEt CO₂Et 2. H3O+ 3. heat Br H3C H₁C CO₂Et CO₂H CO2 + EtOH The malonic ester synthesis is a carbonyl alkylation reaction. It is used to prepare carboxylic acids from primary alkyl halides, lengthening the carbon chain by two atoms. Thus, the product can be visualized as being a "substituted acetic acid." The reaction consists of three steps: generation of the enolate anion followed by SN2 reaction with a primary alkyl halide, ester hydrolysis under acid conditions, and decarboxylation. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions EtO₂C X ¯:0: :0: Br: EtO₂C. Br CH3 H3C CH3 CH3 56arrow_forwardWhat are the products obtained from saponification of isopropyl benzoate with sodium hydroxide? O Sodium propanoate + phenol O benzoic acid + 2-propanol O 2-Propanoic acid + benzyl acohol O Sodium benzoate + 1-propanol O Sodium benzoate + 2-propanolarrow_forward
- Propose a synthesis of cyclohexanecarboxylic acid from diethyl propanedioate and other reagents of your choice.arrow_forwardWhat products are formed in the base hydrolysis of the ester shown below with NaOH? Sodium ethanoate and ethanol B) Ethanol and ethanoic acid Ethanoic acid and sodium ethoxide Sodium ethanoate and water Methanol and sodium propanoate CH, C-O-CH2-CH,arrow_forwardWhich of the following compounds CAN'T be formed starting from malonic ester? 0 0 0 0 0 х A All of them B A B and C OH B OH с OHarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning