Textbook Question
Complete the following multistep syntheses using tosylate formation as one of the steps. The optimum number of steps for each synthesis is shown.
(b)
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Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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Table of contents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases: Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes I: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes II: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification I: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification II: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution I: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution II: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems I: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems II: Pericyclic Reactions54
- Ch. 23 - Benzene I: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene II: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
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Mullins 1st EditionCh. 13 - Alcohols, Ethers and Related Compounds: Substitution and EliminationProblem 26c
Mullins 1st EditionCh. 13 - Alcohols, Ethers and Related Compounds: Substitution and EliminationProblem 26cChapter 12, Problem 26c
Complete the following multistep syntheses using tosylate formation as one of the steps. The optimum number of steps for each synthesis is shown.
(c) 
Verified step by step guidance1
Identify the starting material as an alcohol, specifically 2-methyl-1-butanol.
Convert the alcohol to a tosylate. This involves treating the alcohol with tosyl chloride (TsCl) in the presence of a base like pyridine. The hydroxyl group is replaced by a tosylate group, forming 2-methyl-1-butyl tosylate.
Perform a nucleophilic substitution reaction. Use a thiol nucleophile, such as thiophenol (PhSH), to displace the tosylate group. This results in the formation of the desired thioether product, 2-methyl-1-butyl phenyl sulfide.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Tosylate Formation
Tosylate formation involves converting an alcohol into a tosylate ester using tosyl chloride (TsCl) in the presence of a base. This reaction enhances the leaving group ability of the alcohol, making it more reactive in subsequent nucleophilic substitution reactions. Tosylates are excellent intermediates in organic synthesis, allowing for the formation of various functional groups.
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Formation of Enolates
Nucleophilic Substitution Reactions
Nucleophilic substitution reactions are fundamental processes in organic chemistry where a nucleophile attacks an electrophile, resulting in the replacement of a leaving group. These reactions can occur via two main mechanisms: SN1, which involves a two-step process with a carbocation intermediate, and SN2, which is a one-step process characterized by a concerted mechanism. Understanding these mechanisms is crucial for predicting the outcomes of synthetic pathways.
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Multistep Synthesis
Multistep synthesis refers to the process of constructing complex organic molecules through a series of sequential reactions. Each step typically involves the formation or transformation of specific functional groups, and the choice of reagents and conditions is critical for the success of the overall synthesis. Mastery of multistep synthesis is essential for chemists to design efficient pathways to target compounds.
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Related Practice
Textbook Question
Predict the major product(s) of each of the following reactions.
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Textbook Question
On the reaction coordinate diagram for the disfavored nucleophilic displacement of hydroxide, predict the curve that would demonstrate how using a tosylate makes the substitution favorable.
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Textbook Question
Complete the following multistep syntheses using tosylate formation as one of the steps. The optimum number of steps for each synthesis is shown.
(a)
1
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Textbook Question
Predict the product of the following reactions.
(a)
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Textbook Question
Predict the product of the following reactions.
(b)
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