Textbook Question
Show how the amino acid alanine can be synthesized from propanoic acid.
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Ch. 17 - Reactions at the Alpha-Carbon
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
Chapter 18, Problem 75b
Show how the following compounds can be synthesized. The only carbon-containing compounds available to you for each synthesis are shown.
b. 
Verified step by step guidance1
Identify the target compound and analyze its functional groups, carbon skeleton, and connectivity. This will help determine the synthetic strategy and retrosynthetic steps.
Perform a retrosynthetic analysis by breaking down the target compound into simpler precursors. Consider disconnections that lead to the starting materials provided in the problem.
Determine the reagents and reaction conditions required to form the target compound from the precursors. Use known organic reactions such as substitution, elimination, addition, or rearrangement reactions.
Plan the forward synthesis by writing out the sequence of reactions step by step, ensuring that each step is chemically feasible and leads to the desired intermediate or final product.
Verify the synthesis by checking that the starting materials, reagents, and reaction conditions align with the problem constraints and that the target compound is formed as the final product.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Synthetic Pathways
Synthetic pathways refer to the series of chemical reactions and transformations that convert starting materials into desired products. Understanding these pathways is crucial for planning the synthesis of organic compounds, as it involves selecting appropriate reagents and conditions to achieve the desired molecular structure.
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Functional Groups
Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. Recognizing functional groups in the compounds involved in the synthesis helps predict reactivity and selectivity during chemical reactions, guiding the synthesis process effectively.
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02:36Identifying Functional Groups
Reagents and Reaction Conditions
Reagents are substances used to bring about a chemical reaction, while reaction conditions include temperature, pressure, and solvent choice. Understanding the role of different reagents and the optimal conditions for reactions is essential for successful synthesis, as these factors can significantly influence the yield and purity of the final product.
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Related Practice
Textbook Question
Show how the following compound can be prepared from starting materials that have no more than five carbons:
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Textbook Question
A Mannich reaction puts a -group on the α-carbon of a ketone. Propose a mechanism for the reaction.
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Textbook Question
Draw the products of the following reactions:
d.
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Textbook Question
A student tried to prepare the following compounds using aldol condensations. Which of these compounds was she successful in synthesizing? Explain why the other syntheses were not successful.
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Textbook Question
A carboxylic acid is formed when an a-haloketone reacts with hydroxide ion. This reaction is called a Favorskii reaction. Propose a mechanism for the following Favorskii reaction. (Hint: In the first step, HO- removes a proton from the a-carbon that is not bonded to Br; a three-membered ring is formed in the second step; and HO- is a nucleophile in the third step.)
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