Domanda del libro di testo
Label the reactants in these acid–base reactions as Lewis acids (electrophiles) or Lewis bases (nucleophiles). Use curved arrows to show the movement of electron pairs in the reactions.
(d)
1867
views
Ch. 2 - Acids and Bases; Functional Groups
Wade9th EditionOrganic ChemistryISBN: 9780135213728
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Structure and Bonding107
- Ch. 2 - Acids and Bases; Functional Groups115
- Ch.3 - Structure and Stereochemistry of Alkanes100
- Ch.4 - The Study of Chemical Reactions99
- Ch.5 - Stereochemistry93
- Ch.6 - Alkyl Halides; Nucleophilic Substitution118
- Ch. 7 - Structure and Synthesis of Alkenes; Elimination158
- Ch.8 - Reactions of Alkenes171
- Ch.9 - Alkynes91
- Ch.10 - Structure and Synthesis of Alcohols143
- Ch.11 - Reactions of Alcohols104
- Ch. 12 - Infrared Spectroscopy and Mass Spectrometry22
- Ch. 13 - Nuclear Magnetic Resonance Spectroscopy45
- Ch. 14 - Ethers, Epoxides, and Thioethers72
- Ch. 15 - Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy89
- Ch. 16 - Aromatic Compounds74
- Ch. 17 - Reactions of Aromatic Compounds126
- Ch. 18 - Ketones and Aldehydes193
- Ch. 19 - Amines129
- Ch. 20 - Carboxylic Acids77
- Ch. 21 - Carboxylic Acid Derivatives141
- Ch. 22 - Condensations and Alpha Substitutions of Carbonyl Compounds175
- Ch. 23 - Carbohydrates and Nucleic Acids93
- Ch. 24 - Amino Acids, Peptides, and Proteins54
Capitolo 2, Problema 51b
In each reaction, label the reactants as Lewis acids (electrophiles) or Lewis bases (nucleophiles). Use curved arrows to show the movement of electron pairs in the reactions. Draw any nonbonding electrons to show how they participate in the reactions.
(b) 
Guida verificata passo dopo passo1
Identify the reactants: (CH3)2NH and CH3Cl. Determine which is the Lewis acid and which is the Lewis base. A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor.
Recognize that (CH3)2NH has a lone pair of electrons on the nitrogen atom, making it a Lewis base (nucleophile) because it can donate an electron pair.
Identify CH3Cl as the Lewis acid (electrophile) because the carbon atom is electron-deficient due to the electronegativity of the chlorine atom, making it capable of accepting an electron pair.
Use curved arrows to indicate the movement of electron pairs: Draw a curved arrow from the lone pair on the nitrogen atom of (CH3)2NH to the carbon atom of CH3Cl, showing the formation of a new bond.
Show the result of the electron movement: The nitrogen atom forms a bond with the carbon atom, resulting in (CH3)3(+NH) with a positive charge on nitrogen due to the addition of a proton, and Cl- as the leaving group with a negative charge.
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:
3mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Lewis Acids and Bases
Lewis acids are species that accept electron pairs, while Lewis bases donate electron pairs. In the given reaction, (CH3)2NH acts as a Lewis base because it donates an electron pair, and CH3Cl acts as a Lewis acid by accepting the electron pair, facilitating the formation of a new bond.
Video consigliato:
02:49
The Lewis definition of acids and bases.
Curved Arrow Notation
Curved arrows are used in organic chemistry to depict the movement of electron pairs during chemical reactions. In this reaction, arrows should be drawn from the lone pair on the nitrogen atom in (CH3)2NH to the carbon atom in CH3Cl, indicating the nucleophilic attack and bond formation, and from the bond between carbon and chlorine to chlorine, showing bond cleavage.
Video consigliato:
06:20Alternative MO Notation for Dienes
Nonbonding Electrons
Nonbonding electrons, or lone pairs, are valence electrons not involved in bonding. They play a crucial role in reactions as they can be donated to form new bonds. In this reaction, the lone pair on the nitrogen atom in (CH3)2NH is essential for the nucleophilic attack on CH3Cl, leading to the formation of (CH3)3(+NH) and Cl-.
Video consigliato:
03:54The 18 and 16 Electron Rule
Pratica correlata
Domanda del libro di testo
Label the reactants in these acid–base reactions as Lewis acids (electrophiles) or Lewis bases (nucleophiles). Use curved arrows to show the movement of electron pairs in the reactions.
i.
942
views
Domanda del libro di testo
Each of these compounds can react as an electrophile. In each case, use curved arrows to show how the electrophile would react with the strong nucleophile sodium ethoxide, Na+ −OCH2CH3.
a.
b. NH4+
1650
views
1
rank
Domanda del libro di testo
In each reaction, label the reactants as Lewis acids (electrophiles) or Lewis bases (nucleophiles). Use curved arrows to show the movement of electron pairs in the reactions. Draw any nonbonding electrons to show how they participate in the reactions.
c.
750
views
Domanda del libro di testo
In each reaction, label the reactants as Lewis acids (electrophiles) or Lewis bases (nucleophiles). Use curved arrows to show the movement of electron pairs in the reactions. Draw any nonbonding electrons to show how they participate in the reactions.
(a)
1597
views
Domanda del libro di testo
Each of these compounds can react as an electrophile. In each case, use curved arrows to show how the electrophile would react with the strong nucleophile sodium ethoxide, Na+ −OCH2CH3.
(c) CH3CH2Br
(d) BH3
1471
views