Textbook Question
Describe a synthesis for each of the following compounds, using the given starting material and any necessary reagents:
b.
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Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds
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. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 50b
Bruice 8th EditionCh. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 50bChapter 11, Problem 50b
Using an alkyl halide and a thiol as starting materials, how would you prepare the following thioethers?
b. 
Verified step by step guidance1
Step 1: Identify the target thioether structure. The given structure contains a sulfur atom bonded to a methyl group and a tert-butyl group. This indicates that the starting materials should include a thiol (R-SH) and an alkyl halide (R-X) that can form these groups.
Step 2: Select the thiol starting material. To introduce the methyl group bonded to sulfur, use methanethiol (CH₃SH) as the thiol starting material.
Step 3: Select the alkyl halide starting material. To introduce the tert-butyl group bonded to sulfur, use tert-butyl bromide (C(CH₃)₃Br) as the alkyl halide starting material.
Step 4: Perform the nucleophilic substitution reaction. The thiol (CH₃SH) acts as a nucleophile and attacks the alkyl halide (C(CH₃)₃Br) in an SN2 reaction mechanism, displacing the bromide ion and forming the thioether product.
Step 5: Ensure reaction conditions are suitable. Use a polar aprotic solvent (e.g., acetone or DMSO) to facilitate the SN2 reaction and maintain mild conditions to avoid side reactions.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Alkyl Halides
Alkyl halides are organic compounds containing a carbon atom bonded to a halogen atom (such as chlorine, bromine, or iodine). They are key reactants in nucleophilic substitution reactions, where the halogen can be replaced by a nucleophile, such as a thiol, to form new compounds. Understanding the reactivity and structure of alkyl halides is essential for predicting the outcomes of reactions involving these molecules.
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Thiol
Thiol compounds, also known as mercaptans, are characterized by the presence of a sulfhydryl group (-SH) attached to a carbon atom. They are nucleophilic in nature, meaning they can donate a pair of electrons to form a bond with electrophiles, such as alkyl halides. This property makes thiols valuable in the synthesis of thioethers through nucleophilic substitution reactions.
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Thioether Formation
Thioethers are organic compounds formed by the reaction of an alkyl halide with a thiol, resulting in the substitution of the halogen atom with the thiol's sulfur atom. This reaction typically occurs via an SN2 mechanism, where the nucleophile (thiol) attacks the electrophilic carbon of the alkyl halide, leading to the formation of a thioether and the release of a halide ion. Understanding this mechanism is crucial for successfully synthesizing thioethers.
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Related Practice
Textbook Question
Using an alkyl halide and a thiol as starting materials, how would you prepare the following thioethers?
c.
d.
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Textbook Question
Why is melphalan a good cancer drug?
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Textbook Question
Using an alkyl halide and a thiol as starting materials, how would you prepare the following thioethers?
a.
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Textbook Question
The following three nitrogen mustards were studied for possible clinical use. One is now used clinically, one was found to be too unreactive, and one was found to be too insoluble in water to be injected intravenously. Which is which? (Hint: Draw resonance contributors.)
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Textbook Question
What is the major product of each of the following reactions?
b .
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