Domanda del libro di testo
Rank the following compounds from most reactive to least reactive toward nucleophilic addition:
247
views
Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding31
- 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
Tutti i libri di testo
Bruice 8th EditionCh. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid DerivativesProblema 57a(10)
Bruice 8th EditionCh. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid DerivativesProblema 57a(10)Capitolo 16, Problema 57a(10)
a. Show the reagents required to form the primary alcohol in each of the following reactions.
Guida verificata passo dopo passo1
Step 1: Analyze the starting material and the product. The starting material is an alkene (propene), and the product is a primary alcohol (propan-1-ol). This indicates that the reaction involves the addition of an -OH group to the terminal carbon of the alkene.
Step 2: Recognize the type of reaction. To convert an alkene to a primary alcohol, hydroboration-oxidation is a common method. This reaction proceeds via anti-Markovnikov addition, where the -OH group is added to the less substituted carbon.
Step 3: Identify the reagents for hydroboration-oxidation. The first step requires a borane reagent, such as BH₃·THF (borane-tetrahydrofuran complex), to perform hydroboration. The second step involves oxidation using hydrogen peroxide (H₂O₂) in the presence of a base, such as sodium hydroxide (NaOH).
Step 4: Describe the mechanism briefly. In the hydroboration step, the borane adds to the alkene in a concerted mechanism, forming an organoborane intermediate. In the oxidation step, the organoborane reacts with H₂O₂ and NaOH to replace the boron atom with an -OH group, yielding the primary alcohol.
Step 5: Summarize the reaction conditions. The overall reaction requires two steps: (1) hydroboration with BH₃·THF, and (2) oxidation with H₂O₂ and NaOH. These reagents ensure the formation of the primary alcohol via anti-Markovnikov addition.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Hydroboration-Oxidation
Hydroboration-oxidation is a two-step reaction process used to convert alkenes into alcohols. In the first step, an alkene reacts with diborane (B2H6) to form a trialkylborane intermediate. This step is characterized by the addition of boron across the double bond in a syn fashion, leading to the formation of a primary alcohol upon oxidation in the second step, typically using hydrogen peroxide (H2O2) in a basic solution.
Video consigliato:
06:38
General properties of hydroboration-oxidation.
Regioselectivity
Regioselectivity refers to the preference of a chemical reaction to yield one structural isomer over others when multiple possibilities exist. In hydroboration, the boron atom adds to the less substituted carbon of the alkene, resulting in the formation of a primary alcohol. This regioselectivity is crucial for synthesizing specific alcohols from alkenes, as it determines the final product's structure.
Video consigliato:
05:09Heck Reaction
Primary Alcohols
Primary alcohols are organic compounds where the hydroxyl (-OH) group is attached to a carbon atom that is bonded to only one other carbon atom. They are typically formed from the hydroboration-oxidation of alkenes, where the reaction favors the formation of the least substituted alcohol. Understanding the structure and properties of primary alcohols is essential for predicting their reactivity and applications in organic synthesis.
Video consigliato:
Percorso guidato
1:11Primary Protein Structure Example 1
Pratica correlata
Domanda del libro di testo
a. Show the reagents required to form the primary alcohol in each of the following reactions.
1093
views
Domanda del libro di testo
Draw the structure of two esters that will be reduced to propanol and butanol by LiAlH4 (followed by addition of aqueous acid).
956
views
Domanda del libro di testo
a. Show the reagents required to form the primary alcohol in each of the following reactions.
858
views
Domanda del libro di testo
a. Show the reagents required to form the primary alcohol in each of the following reactions.
1126
views
Domanda del libro di testo
a. Show the reagents required to form the primary alcohol in each of the following reactions.
1203
views