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Carbonyl Alpha-Substitution ReactionsChapter 22 Carbonyl Alpha-Substitution Reactions Suggested Problems – 1-16,20-3,37-9,42-6 Keto-Enol TautomerismA carbonyl compound…
116 228 Chapter 22. Carbonyl Alpha-Substitution Reactions O ! " #!' "' #' H O carbonyl O H O Enol Enolate E O E+ E+ 229 Tautomers: isomers, usually related by a…
116 228 Chapter 22. Carbonyl Alpha-Substitution Reactions O ! " #!' "' #' H O carbonyl O H O Enol Enolate E O E+ E+ 229 Tautomers: isomers, usually related by a…
Chapter 23 - Substitution Reactions of Carbonyl Compounds at the α Carbon All following reactions are w aldehydes and ketones Formation of Enolate · NaH or LDA = non-catalytic…
130 256 Chapter 23 Carbonyl Condensation Reactions As a result of the large dipole of the carbonyl group: 1 The carbonyl carbon is electrophilic and is the site of addition…
Project OverviewCh. 6 - 1 Ch. 6 - 2 1. Organic Halides C X δ+ δ− X = Cl, Br, I C–X Bond Strength (kJ/mol) 472 350 293 239 increase decrease Ch. 6
130 256 Chapter 23. Carbonyl Condensation Reactions As a result of the large dipole of the carbonyl group: 1. The carbonyl carbon is electrophilic and is the site of addition…
Chapter 11 Organic Reaction Mechanisms, Part 2: Substitutions at Aliphatic Centers and Thermal Isomerizations/Rearrangements Substitution α to a carbonyl center: Enol and…
Chemistry of Carbonyl Compounds •Nucleophilic addition 12-add substitution •Conjugate addition 14 add •Robinson annulation McM 2312 •Alkylation of enolate anions…
Chapter 17: Reactions of Aromatic Compounds Electrophilic aromatic substitution 17-1 – Most common normal reaction of aromatics 452 HNO3 H2SO4 NO2 + H2O – Similar to…
22-aldol.pptxEnols and Enolates A type of reaction with carbonyl compounds is an α-substitution (an electrophile adds to the α carbon of a carbonyl) O O E E+
Slide 1 α,β-Unsaturated Carbonyl Compounds Slide 2 Slide 3 Slide 4 α,β-Unsaturated Carbonyl Compounds, reactions: 1.electrophilic addition deactivated 2.nucleophilic…
130 256 Chapter 23. Carbonyl Condensation Reactions As a result of the large dipole of the carbonyl group: 1. The carbonyl carbon is electrophilic and is the site of addition…
16 Chemistry of Benzene: Electrophilic Aromatic Substitution Based on McMurry’s Organic Chemistry 7th edition 2 Substitution Reactions of Benzene and Its Derivatives …
Reactions of the Carbonyl GroupReactions of the Carbonyl Group ! Protons on the αααα-carbon are, in principle, acidic, and a non-nucleophilic base can deprotonate the…
Richard F. Daley and Sally J. Daley www.ochem4free.com Organic Chemistry Chapter 20 Carbonyl Condensation Reactions 20.1 The Carbonyl Condensation Mechanism 1052 20.2 Carbonyl…
INTRODUCTION Both aldehydes & ketones contain carbonyl group as their functional group. Structure of carbonyl group Both aldehydes & ketones have carbonyl group as…
Reactions of haloalkanes. Nucleophilic substitution Halogens are relatively electronegative. So the carbon/halogen bond will be polarised. δ- δ+ The δ+ on carbon will…
Chapter 18 Reactions at the α Carbon of Carbonyl Compounds Enols and Enolates Ch. 18 - 1 Ch. 18 - 2 O R R Nu Reactions at the α Carbon of Carbonyl Compounds: Enols and…
Slide 1 1 Nucleophilic reactions involving enolate anions (2) Aldehydes, Ketons and other carbonyl compounds having H on α-C -> in equilibrium (in solution) -> Keto-Enol…