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Unfortunately, the use of NMO creates an additional green chemistry problem. What is the problem and how might it be solved?
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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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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. 13 - Alcohols, Ethers and Related Compounds: Substitution and EliminationProblema 66b
Mullins 1st EditionCh. 13 - Alcohols, Ethers and Related Compounds: Substitution and EliminationProblema 66bCapitolo 12, Problema 66b
Predict the product of the following reactions. [Two of them are Williamson ether syntheses. Why isn't the other?].
(b) 
Guida verificata passo dopo passo1
Step 1: Identify the type of reaction. The first step involves the use of sodium hydride (NaH), which is a strong base. This will deprotonate the alcohol group, forming an alkoxide ion.
Step 2: Write the chemical equation for the deprotonation. The alcohol, tert-butanol, reacts with NaH to form the tert-butoxide ion and hydrogen gas. The reaction can be represented as:
Step 3: Analyze the second step of the reaction. The alkoxide ion formed in the first step will act as a nucleophile and attack the electrophilic carbon in the alkyl iodide, leading to the formation of an ether. This is a typical Williamson ether synthesis.
Step 4: Consider the structure of the alkyl iodide. The alkyl iodide is connected to a silicon group, which is not typically involved in Williamson ether synthesis. This suggests that the reaction may not proceed as a typical Williamson ether synthesis.
Step 5: Predict the product. The tert-butoxide ion will likely attack the carbon adjacent to the iodine, displacing the iodide ion and forming an ether linkage. However, the presence of the silicon group may influence the reaction pathway or product stability.
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Williamson Ether Synthesis
Williamson ether synthesis is a method for creating ethers through the reaction of an alkoxide ion with a primary alkyl halide. This reaction typically involves an SN2 mechanism, where the nucleophile (alkoxide) attacks the electrophilic carbon of the alkyl halide, resulting in the formation of an ether. The choice of reactants is crucial, as steric hindrance can prevent successful ether formation.
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03:50
The Mechanism of Williamson Ether Synthesis.
SN2 Mechanism
The SN2 mechanism is a type of nucleophilic substitution reaction characterized by a single concerted step where the nucleophile attacks the electrophile while the leaving group departs. This bimolecular process results in the inversion of configuration at the carbon center. It is favored by primary substrates due to less steric hindrance, making it essential for understanding the conditions under which Williamson ether synthesis occurs.
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08:33Drawing the SN2 Mechanism
Reactivity of Alkyl Halides
The reactivity of alkyl halides in nucleophilic substitution reactions depends on their structure and the nature of the leaving group. Primary alkyl halides are more reactive in SN2 reactions due to less steric hindrance, while tertiary halides favor SN1 mechanisms due to carbocation stability. Understanding this reactivity is key to predicting the outcomes of reactions, including why some reactions may not follow the Williamson ether synthesis pathway.
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01:52How to name alkyl halides
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Predict the product of the following reactions. [Two of them are Williamson ether syntheses. Why isn't the other?].
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Predict the product of the following reactions. [Two of them are Williamson ether syntheses. Why isn't the other?].
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