Textbook Question
What product do you expect to obtain from each of the following reactions?
a.
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Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
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Table of contents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 1)31
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 2)65
- Ch. 2 - Acids and Bases: Central to Understanding Organic Chemistry84
- Ch. 3 - An Introduction to Organic Compounds:Nomenclature, Physical Properties, and Structure183
- Ch. 4 - Isomers: The Arrangement of Atoms in Space121
- Ch. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and Kinetics83
- Ch. 6 - The Reactions of Alkenes • The Stereochemistry of Addition Reactions175
- Ch. 7 - The Reactions of Alkynes • An Introduction to Multistep Synthesis119
- Ch. 8 - Delocalized Electrons: Their Effect on Stability, pKa, and the Products of a Reaction • Aromaticity and Electronic Effects: An Introduction to the Reactions of Benzene148
- Ch. 9 - Substitution and Elimination Reactions of Alkyl Halides212
- Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds131
- Ch. 11 - Organometallic Compounds60
- Ch. 12 - Radicals90
- Ch. 13 - Mass Spectrometry; Infrared Spectroscopy; UV/Vis Spectroscopy62
- Ch. 14 - NMR Spectroscopy95
- Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives123
- Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives141
- Ch. 17 - Reactions at the Alpha-Carbon101
- Ch. 18 - Reactions of Benzene and Substituted Benzenes144
- Ch. 19 - More About Amines • Reactions of Heterocyclic Compounds49
- Ch. 20 - The Organic Chemistry of Carbohydrates80
- Ch. 21 - Amino Acids, Peptides, and Proteins57
- Ch. 22 - Catalysis in Organic Reactions and in Enzymatic Reactions35
- Ch. 23 - The Organic Chemistry of the Coenzymes—Compounds Derived from Vitamins1
- Ch. 28 - Pericyclic Reactions58
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Bruice 8th EditionCh. 15 - Reactions of Carboxylic Acids and Carboxylic Acid DerivativesProblem 85d
Bruice 8th EditionCh. 15 - Reactions of Carboxylic Acids and Carboxylic Acid DerivativesProblem 85dChapter 16, Problem 85d
Show how the following compounds could be prepared from the given starting materials. You can use any necessary organic or inorganic reagents.
d. 
Verified step by step guidance1
Step 1: Analyze the starting material and the target compound. The starting material is styrene (C6H5-CH=CH2), and the target compound is phenylbutanoic acid (C6H5-CH2-CH2-COOH). The transformation involves adding two carbons and converting the alkene into a carboxylic acid.
Step 2: Perform a hydroboration-oxidation reaction on the styrene. Use BH3 (borane) followed by H2O2 (hydrogen peroxide) and NaOH (sodium hydroxide) to convert the alkene into a primary alcohol (C6H5-CH2-CH2-OH). This reaction adds water across the double bond in an anti-Markovnikov fashion.
Step 3: Oxidize the primary alcohol to a carboxylic acid. Use a strong oxidizing agent such as KMnO4 (potassium permanganate) or CrO3 (chromium trioxide) in acidic conditions to convert the alcohol group (-CH2OH) into a carboxylic acid (-COOH).
Step 4: Verify the structure of the product. Ensure that the phenyl group (C6H5-) remains intact and the two-carbon chain is correctly added, leading to the formation of phenylbutanoic acid.
Step 5: Review the reaction conditions and reagents used to ensure compatibility with the functional groups present in the starting material and the target compound.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Ester Hydrolysis
Ester hydrolysis is a chemical reaction where an ester reacts with water in the presence of an acid or base to form an alcohol and a carboxylic acid. In acid-catalyzed hydrolysis, the ester is protonated, making it more susceptible to nucleophilic attack by water, leading to the cleavage of the ester bond. This reaction is important in organic synthesis and can be used to convert esters back to their corresponding carboxylic acids and alcohols.
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Reagents in Organic Synthesis
In organic synthesis, various reagents are employed to facilitate chemical reactions. Common reagents include acids, bases, oxidizing agents, and reducing agents, each serving specific roles in transforming reactants into desired products. Understanding the function and mechanism of these reagents is crucial for predicting the outcome of reactions and designing synthetic pathways.
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Mechanism of Acid-Catalyzed Reactions
The mechanism of acid-catalyzed reactions involves the donation of a proton (H+) from the acid to the reactant, enhancing its electrophilicity. This step often leads to the formation of a more reactive intermediate, which can then undergo further reactions, such as nucleophilic attack. Familiarity with these mechanisms allows chemists to manipulate reaction conditions to favor the formation of specific products.
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Related Practice
Textbook Question
The following compound has been found to be an inhibitor of penicillinase. The enzyme can be reactivated by hydroxylamine (NH2OH). Propose a mechanism to account for the inhibition.
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Textbook Question
Show how the following compounds could be prepared from the given starting materials. You can use any necessary organic or inorganic reagents.
c.
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Textbook Question
The intermediate shown here is formed during the hydroxide-ion-promoted hydrolysis of the ester group. Propose a mechanism for the reaction.
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Textbook Question
Show how the following compounds could be prepared from the given starting materials. You can use any necessary organic or inorganic reagents.
b.
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Textbook Question
Show how the following compounds could be prepared from the given starting materials. You can use any necessary organic or inorganic reagents.
a.
957
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