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Suggest a synthesis of the molecule on the right beginning with the molecules on the left.
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Ch. 23 - Benzene 1: Aromatic Stability and Substitution Reactions
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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TOC.tableOfContents
- 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 1: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes 2: 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 1: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification 2: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution 1: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution 2: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems 1: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems 2: Pericyclic Reactions54
- Ch. 23 - Benzene 1: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene 2: 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: 9780137566471Non è quello che usi tu?Cambia libro di testo
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Mullins 1st EditionCh. 23 - Benzene 1: Aromatic Stability and Substitution ReactionsProblema 92
Mullins 1st EditionCh. 23 - Benzene 1: Aromatic Stability and Substitution ReactionsProblema 92Capitolo 22, Problema 92
Suggest an arrow-pushing mechanism of the following rearrangement.
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Identify the functional groups involved in the rearrangement. The starting material contains a sulfonic acid group (SO3H) attached to a phenol group, and the product has a sulfonic acid group attached to an ether linkage.
Recognize the role of the base, NaOH, in the reaction. The hydroxide ion (OH-) can act as a nucleophile and initiate the rearrangement by attacking the sulfonic acid group.
Propose the first step of the mechanism: the hydroxide ion attacks the sulfur atom of the sulfonic acid group, leading to the formation of a negatively charged intermediate where the sulfur atom is bonded to an additional oxygen atom.
Suggest the next step: the negatively charged oxygen atom can facilitate the rearrangement by forming a bond with the adjacent phenolic oxygen, resulting in the cleavage of the S-O bond and formation of the ether linkage.
Conclude the mechanism by showing the final proton transfer step, where the newly formed ether oxygen atom donates a proton to regenerate the sulfonic acid group, completing the rearrangement.
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Arrow-Pushing Mechanism
Arrow-pushing mechanisms are a way to illustrate the movement of electrons during chemical reactions. In organic chemistry, these diagrams show how nucleophiles and electrophiles interact, helping to visualize the formation and breaking of bonds. Understanding this concept is crucial for predicting the outcome of reactions and for proposing mechanisms for rearrangements.
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04:32
General Mechanism
Rearrangement Reactions
Rearrangement reactions involve the structural reorganization of a molecule, resulting in the formation of an isomer. These reactions often occur through the migration of atoms or groups within the molecule, influenced by factors such as stability and sterics. Recognizing the type of rearrangement and the stability of intermediates is essential for proposing accurate mechanisms.
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06:08Definition of Claisen Rearrangement
Stability of Intermediates
The stability of intermediates, such as carbocations or carbanions, plays a critical role in determining the pathway of a rearrangement reaction. More stable intermediates are favored and can lead to faster reaction rates. Understanding the factors that influence stability, such as resonance and inductive effects, is vital for predicting the mechanism and products of the rearrangement.
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04:31Stability of Conjugated Intermediates
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