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Aromatics electrophilic substitution

The substituent effects in aromatic electrophilic substitution are dominated by resonance effects. In other systems, stereoelectronic effects or steric effects might be more important. Whatever the nature of the substituent effects, the Hammond postulate insists diat structural discussion of transition states in terms of reactants, intermediates, or products is valid only when their structures and energies are similar. [Pg.219]

Electrophilic aromatic substitution reactions are important for synthetic purposes and also are one of the most thoroughly studied classes of organic reactions from a mechanistic point of view. The synthetic aspects of these reactions are discussed in Chapter 11 of Part B. The discussion here will emphasize the mechanisms of several of the most completely studied reactions. These mechanistic ideas are the foundation for the structure-reactivity relationships in aromatic electrophilic substitution which will be discussed in Section 10.2... [Pg.551]

Equation (1-3) is an aromatic electrophilic substitution (Se), the nitronium ion being the electrophile and the proton the leaving group (electrafuge). [Pg.9]

Reactions that occur with the development of an electron deficiency, such as aromatic electrophilic substitutions, are best correlated by substituent constants based on a more appropriate defining reaction than the ionization of benzoic acids. Brown and Okamoto adopted the rates of solvolysis of substituted phenyldimeth-ylcarbinyl chlorides (r-cumyl chlorides) in 90% aqueous acetone at 25°C to define electrophilic substituent constants symbolized o-. Their procedure was to establish a conventional Hammett plot of log (.k/k°) against (t for 16 /wcra-substituted r-cumyl chlorides, because meta substituents cannot undergo significant direct resonance interaction with the reaction site. The resulting p value of —4.54 was then used in a modified Hammett equation. [Pg.321]

The A-Se2 mechanism is exemplified by some aromatic electrophilic substitutions ... [Pg.454]

Aromatic electrophilic substitutions have been performed at the macrocycle of the phthalo-... [Pg.804]

Scheme 6.7 Synthesis of polyfether ketone ketone) via aromatic electrophilic substitution catalyzed by AICI3. Scheme 6.7 Synthesis of polyfether ketone ketone) via aromatic electrophilic substitution catalyzed by AICI3.
Compared with the aromatic electrophilic substitution approach, the SNAr approach general requires higher reaction temperatures. The polymers generally have well-defined structures. Therefore, it is more facile to control the structures of die products. In addition, it is more tolerable to some reactive functional groups, which makes it possible to synthesize reactive-group end-capped prepolymers and functional copolymers using functional monomers. [Pg.336]

Aromatic electronic substitution, 350 Aromatic electrophilic substitution, 332 Aromatic isocyanates, 209-210, 225 Aromatic nucleophilic substitution, 282, 283... [Pg.577]


See other pages where Aromatics electrophilic substitution is mentioned: [Pg.289]    [Pg.675]    [Pg.676]    [Pg.678]    [Pg.680]    [Pg.682]    [Pg.684]    [Pg.686]    [Pg.690]    [Pg.692]    [Pg.694]    [Pg.695]    [Pg.696]    [Pg.698]    [Pg.700]    [Pg.702]    [Pg.704]    [Pg.706]    [Pg.708]    [Pg.710]    [Pg.712]    [Pg.714]    [Pg.716]    [Pg.718]    [Pg.720]    [Pg.722]    [Pg.724]    [Pg.726]    [Pg.728]    [Pg.730]    [Pg.732]    [Pg.734]    [Pg.736]    [Pg.738]    [Pg.740]    [Pg.742]    [Pg.744]    [Pg.746]    [Pg.748]    [Pg.750]    [Pg.752]    [Pg.754]   
See also in sourсe #XX -- [ Pg.579 ]




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A General Mechanism for Electrophilic Aromatic Substitution

Acetanilide, electrophilic aromatic substitution

Activating substituents, and electrophilic aromatic substitution

Acylium cations electrophilic aromatic substitution

Addition reactions electrophilic aromatic substitution

Amination electrophilic aromatic substitutions

Amines electrophilic aromatic substitution

And electrophilic aromatic substitution

Aniline electrophilic aromatic substitution

Anthracene electrophilic aromatic substitution

Arenes electrophilic aromatic substitution

Aromatic Compounds Through Intramolecular Electrophilic Substitution

Aromatic Substitution Part I Attack of the Electrophiles

Aromatic Substitution by Electrophiles (Lewis Acids, E 2 Electrophilic Substitutions in Syntheses of Benzene erivatives

Aromatic alcohols Electrophilic substitution

Aromatic compounds electrophilic substitution

Aromatic compounds electrophilic substitution reactions

Aromatic compounds, polycyclic, electrophilic substitution

Aromatic hydrocarbons electrophilic substitution

Aromatic substitution electrophilic species

Aromatic substitution selectivity of electrophiles

Aromaticity electrophilic aromatic substitution

Aromaticity electrophilic aromatic substitution

Aryl halides electrophilic aromatic substitution

Arylamine electrophilic aromatic substitution

Arylamines electrophilic aromatic substitution

Benzaldehyde, electrophilic aromatic substitution

Benzene Electrophilic aromatic substitution reactions

Benzene and Aromaticity Electrophilic Aromatic Substitution

Benzene derivatives electrophilic aromatic substitution

Benzene electrophilic aromatic substitution, product

Bromination electrophilic aromatic substitution

Bromine electrophilic aromatic substitution

COMMON ELECTROPHILIC AROMATIC SUBSTITUTION REACTIONS

Carbocation electrophilic aromatic substitution

Carbocations electrophilic aromatic substitution

Carbonium ions electrophilic aromatic substitution

Carbonium ions electrophilic aromatic substitution reactions

Catalytic enantioselective electrophilic aromatic substitutions

Chemistry of Benzene Electrophilic Aromatic Substitution

Cyclohexadienyl cation, intermediate electrophilic aromatic substitution

Deactivating groups, in electrophilic aromatic substitution

EAS Electrophilic Aromatic Substitution

Effect of substituents on electrophilic aromatic substitution

Effects of Multiple Substituents on Electrophilic Aromatic Substitution

Electron Pushing for Electrophilic Aromatic Substitutions

Electrons Electrophilic aromatic substitution,

Electrophile Electrophilic aromatic substitution

Electrophile Electrophilic aromatic substitution

Electrophiles electrophilic aromatic substitution

Electrophiles for the Electrophilic Aromatic Substitution

Electrophiles in electrophilic aromatic substitution

Electrophilic Aromatic Substitution Reactions Bromination

Electrophilic Aromatic Substitution in Arylamines

Electrophilic Aromatic Substitution in Biphenyls

Electrophilic Aromatic Substitution in Naphthalene

Electrophilic Aromatic Substitution in Polysubstituted Benzenes

Electrophilic Aromatic Substitution on Substituted Benzenes

Electrophilic Aromatic Substitutions via Sigma Complexes (Ar-SE Reactions)

Electrophilic Substitution Reactions on Metalated Aromatic Compounds

Electrophilic and Nucleophilic Aromatic Substitution

Electrophilic and nucleophilic substitution in aromatic

Electrophilic arenes nucleophilic aromatic substitution

Electrophilic aromatic substitution (SEAr

Electrophilic aromatic substitution 1,3-azoles

Electrophilic aromatic substitution 2-naphthol

Electrophilic aromatic substitution Friedel-Crafts

Electrophilic aromatic substitution Friedel-Crafts acylation

Electrophilic aromatic substitution Friedel-Crafts alkylation

Electrophilic aromatic substitution Nitration Sulfonation

Electrophilic aromatic substitution Wheland intermediate

Electrophilic aromatic substitution activating/deactivating effects

Electrophilic aromatic substitution acyl transfer

Electrophilic aromatic substitution addition

Electrophilic aromatic substitution alkenylation

Electrophilic aromatic substitution alkylation

Electrophilic aromatic substitution alkylation Halogenation

Electrophilic aromatic substitution alkylbenzenes

Electrophilic aromatic substitution alkynylation

Electrophilic aromatic substitution arene radical cations

Electrophilic aromatic substitution arylamines and

Electrophilic aromatic substitution arylation

Electrophilic aromatic substitution benzene derivatives, nomenclature

Electrophilic aromatic substitution benzenes

Electrophilic aromatic substitution biological example

Electrophilic aromatic substitution blocking groups

Electrophilic aromatic substitution carbonylation

Electrophilic aromatic substitution charge-transfer mechanism

Electrophilic aromatic substitution chlorination

Electrophilic aromatic substitution chlorosulfonation

Electrophilic aromatic substitution comparison pyrrole/thiophene/furan

Electrophilic aromatic substitution computations

Electrophilic aromatic substitution conjugating substituents, effect

Electrophilic aromatic substitution derivatives, process

Electrophilic aromatic substitution described

Electrophilic aromatic substitution diazonium coupling

Electrophilic aromatic substitution diazotization

Electrophilic aromatic substitution directing effects

Electrophilic aromatic substitution electron withdrawing

Electrophilic aromatic substitution energy changes

Electrophilic aromatic substitution energy diagram

Electrophilic aromatic substitution energy profile

Electrophilic aromatic substitution example mechanism

Electrophilic aromatic substitution examples

Electrophilic aromatic substitution fluorine

Electrophilic aromatic substitution general mechanism

Electrophilic aromatic substitution halogen

Electrophilic aromatic substitution in ferrocene

Electrophilic aromatic substitution in phenols

Electrophilic aromatic substitution in polycyclic aromatics

Electrophilic aromatic substitution indole

Electrophilic aromatic substitution intermediates

Electrophilic aromatic substitution kinds

Electrophilic aromatic substitution kinetic isotope effects

Electrophilic aromatic substitution kinetics

Electrophilic aromatic substitution lithiation

Electrophilic aromatic substitution localization energy

Electrophilic aromatic substitution mechanism

Electrophilic aromatic substitution mechanisms, process

Electrophilic aromatic substitution meta-directing substituents

Electrophilic aromatic substitution metalation

Electrophilic aromatic substitution nitration

Electrophilic aromatic substitution nitration with nitronium ions

Electrophilic aromatic substitution nitro group

Electrophilic aromatic substitution nitrogen

Electrophilic aromatic substitution of Friedel-Crafts acylation

Electrophilic aromatic substitution of benzene

Electrophilic aromatic substitution of halogenation

Electrophilic aromatic substitution of heteroaromatic compounds

Electrophilic aromatic substitution of isoquinoline

Electrophilic aromatic substitution of nitration

Electrophilic aromatic substitution of phenols

Electrophilic aromatic substitution of pyridines

Electrophilic aromatic substitution of quinoline

Electrophilic aromatic substitution of substituted benzenes

Electrophilic aromatic substitution of sulfonation

Electrophilic aromatic substitution orientation

Electrophilic aromatic substitution ortho, para-directing substituents

Electrophilic aromatic substitution oxygen

Electrophilic aromatic substitution para-addition

Electrophilic aromatic substitution polar mechanism

Electrophilic aromatic substitution polymerization

Electrophilic aromatic substitution position selectivity

Electrophilic aromatic substitution proton exchange

Electrophilic aromatic substitution pyrrole and

Electrophilic aromatic substitution quinoline

Electrophilic aromatic substitution reaction biological example

Electrophilic aromatic substitution reaction diazonium coupling

Electrophilic aromatic substitution reaction general mechanism

Electrophilic aromatic substitution reaction inductive effects

Electrophilic aromatic substitution reaction kinds

Electrophilic aromatic substitution reaction rates, substituents effect

Electrophilic aromatic substitution reaction resonance effects

Electrophilic aromatic substitution reaction substituent effects

Electrophilic aromatic substitution reactions Bronsted acids

Electrophilic aromatic substitution reactions Friedel-Crafts acylation

Electrophilic aromatic substitution reactions Friedel-Crafts alkylation

Electrophilic aromatic substitution reactions Vilsmeier—Haack reaction

Electrophilic aromatic substitution reactions approach

Electrophilic aromatic substitution reactions arene nucleophiles

Electrophilic aromatic substitution reactions asymmetric synthesis

Electrophilic aromatic substitution reactions brominations

Electrophilic aromatic substitution reactions categories

Electrophilic aromatic substitution reactions cationic electrophile formation

Electrophilic aromatic substitution reactions chiral catalyst

Electrophilic aromatic substitution reactions chiral electrophile

Electrophilic aromatic substitution reactions direct protonation

Electrophilic aromatic substitution reactions electrophile strength

Electrophilic aromatic substitution reactions electrophilicity parameters

Electrophilic aromatic substitution reactions epoxide substrate

Electrophilic aromatic substitution reactions exchange

Electrophilic aromatic substitution reactions halogenation

Electrophilic aromatic substitution reactions hydroxylations

Electrophilic aromatic substitution reactions intermediates

Electrophilic aromatic substitution reactions mechanism

Electrophilic aromatic substitution reactions nitration

Electrophilic aromatic substitution reactions nitrobenzene

Electrophilic aromatic substitution reactions products

Electrophilic aromatic substitution reactions substitutions

Electrophilic aromatic substitution reactions sulfonation

Electrophilic aromatic substitution reactions summary table

Electrophilic aromatic substitution reactions transition state modeling

Electrophilic aromatic substitution reactions with nitration

Electrophilic aromatic substitution regiochemistry

Electrophilic aromatic substitution regiochemistry prediction

Electrophilic aromatic substitution relative rates

Electrophilic aromatic substitution resonance effects

Electrophilic aromatic substitution sigma complex

Electrophilic aromatic substitution structure

Electrophilic aromatic substitution substituent effects

Electrophilic aromatic substitution substituents

Electrophilic aromatic substitution sulfonation

Electrophilic aromatic substitution summary

Electrophilic aromatic substitution summary tables

Electrophilic aromatic substitution symmetrical

Electrophilic aromatic substitution table

Electrophilic aromatic substitution theoretical calculations

Electrophilic aromatic substitution trapping of intermediate

Electrophilic aromatic substitution trifluoromethyl

Electrophilic aromatic substitution, acylation

Electrophilic aromatic substitution, acylation alkylation, limitations

Electrophilic aromatic substitution, acylation arenes

Electrophilic aromatic substitution, acylation intermediates

Electrophilic aromatic substitution, acylation mechanism

Electrophilic aromatic substitution, acylation nitration, mechanism

Electrophilic aromatic substitution, acylation ortho-para directing groups

Electrophilic aromatic substitution, acylation procedures for

Electrophilic aromatic substitution, acylation rearrangements

Electrophilic aromatic substitution, influence

Electrophilic aromatic substitution, intramolecular

Electrophilic aromatic substitution, sulfonyl

Electrophilic aromatic substitutions alkylations

Electrophilic aromatic substitutions definition

Electrophilic aromatic substitutions isoquinoline

Electrophilic aromatic substitutions meaning

Electrophilic aromatic substitutions meta-directing groups

Electrophilic aromatic substitutions ortho—para-directing groups

Electrophilic substitution aromatic, photochemical

Electrophilic substitution aromatic, thermal

Electrophilic substitution is the usual route to substituted aromatic compounds

Electrophilic substitution of aromatic

Electrophilic substitution of aromatic compounds

Electrophilic substitution on aromatics

Electrophilic substitution on aromatics addition-elimination

Electrophilic substitution, aromatic Lewis acids

Electrophilic substitution, aromatic complexing with substituent

Electrophilic substitution, aromatic deuterium exchange

Electrophilic substitution, aromatic electronic effects

Electrophilic substitution, aromatic energetics

Electrophilic substitution, aromatic field effect

Electrophilic substitution, aromatic hyperconjugation

Electrophilic substitution, aromatic inductive effect

Electrophilic substitution, aromatic intermediates, isolation

Electrophilic substitution, aromatic internal

Electrophilic substitution, aromatic isotope effects

Electrophilic substitution, aromatic kinetic control

Electrophilic substitution, aromatic partial rate factors

Electrophilic substitution, aromatic selectivity

Electrophilic substitution, aromatic steric effects

Electrophilic substitution, aromatic thermodynamic control

Electrophilic substitution, aromatic transition states

Energy diagram for electrophilic aromatic substitution

Enhancer electrophilic aromatic substitution

Enzyme-catalyzed electrophilic aromatic substitution

Ethere electrophilic aromatic substitution

Ferrocene electrophilic aromatic substitution

For electrophilic aromatic substitution

For electrophilic aromatic substitution reactions

Furan electrophilic aromatic substitution

Fused rings, electrophilic aromatic substitution

Generalized mechanism for electrophilic aromatic substitution

Halogenation electrophilic aromatic substitution

Hammett equation electrophilic aromatic substitution

Hammett equation electrophilic aromatic substitution, application

Hammond postulate electrophilic aromatic substitution

Heteroaromatic compounds electrophilic aromatic substitution

Heterocyclic compounds electrophilic aromatic substitution

How Do Existing Substituents on Benzene Affect Electrophilic Aromatic Substitution

Hydrogen, electrophilic aromatic substitution

INDEX electrophilic aromatic substitution

In aromatic electrophilic substitution

Indole, aromaticity electrophilic substitution reaction

Ingold, Sir Christopher electrophilic aromatic substitution

Intramolecular Aromatic Substitutions with Electrophilic -Radicals

Introduction to Electrophilic Aromatic Substitution

Isoquinoline, aromaticity electrophilic substitution reaction

Isotope effects in electrophilic aromatic substitution

Key Concepts—Electrophilic Aromatic Substitution

Lewis adds electrophilic aromatic substitution

Mechanism for Electrophilic Aromatic Substitution

Mechanism of aromatic electrophilic substitution

Mechanistic Principles of Electrophilic Aromatic Substitution

Modification electrophilic aromatic substitution

Naphthalene electrophilic aromatic substitution

Nitrobenzene electrophilic aromatic substitution

Organic reactions electrophilic aromatic substitution

Other Electrophilic Aromatic Substitutions

Phenanthrene electrophilic aromatic substitution

Phenol electrophilic aromatic substitution

Photochemical reactions aromatic electrophilic substitution

Polycyclic aromatic molecules electrophilic substitution

Polymerization by electrophilic aromatic substitution

Potential energy diagrams for electrophilic aromatic substitution

Potential energy electrophilic aromatic substitution

Proton exchange by electrophilic aromatic substitution

Pyramidal electrophilic aromatic substitution

Pyridine derivatives electrophilic aromatic substitution

Pyridine electrophilic aromatic substitution

Pyridine, aromaticity electrophilic substitution reactions

Pyrrole electrophilic aromatic substitution

Pyrrole, aromaticity electrophilic substitution reactions

Pyrroles electrophilic aromatic substitution

Quinoline, aromaticity electrophilic substitution reaction

REACTIONS OF ARENES ELECTROPHILIC AROMATIC SUBSTITUTION

Rate and Regioselectivity in Electrophilic Aromatic Substitution

Rate determining step, electrophilic aromatic substitution

Rate-determining step in electrophilic aromatic substitution

Reactions of Arenes Electrophilic and Nucleophilic Aromatic Substitution

Reactions of Aromatic Compounds Electrophilic Substitution

Reactions of Phenols Electrophilic Aromatic Substitution

Reactivity and Orientation in Electrophilic Aromatic Substitution

Regioselectivity electrophilic aromatic substitution

Regioselectivity in electrophilic aromatic substitution

Relative Rates of Electrophilic Aromatic Substitution

Representative Electrophilic Aromatic Substitution Reactions of Benzene

Resonance forms electrophilic aromatic substitution

Selectivity in some electrophilic aromatic substitution reactions

Stereochemistry electrophilic aromatic substitution

Steric effects in electrophilic aromatic substitution

Studies of Electrophilic Aromatic Substitution

Styrene substitution, Aromatic electrophilic

Substituent Effects in Electrophilic Aromatic Substitution Activating Substituents

Substituent Effects in Electrophilic Aromatic Substitution Halogens

Substituent Effects in Electrophilic Aromatic Substitution Strongly Deactivating Substituents

Substituent effect, additivity electrophilic aromatic substitution

Substituent effects in electrophilic aromatic substitution

Substitution electrophilic aromatic

Substitution electrophilic aromatic

Substitution electrophilic aromatic nitrations

Substitution electrophilic aromatic substitutions

Substitution electrophilic aromatic substitutions

Substitution reactions aromatic electrophilic: examples illustrating

Substitution reactions electrophilic aromatic

Substitution reactions electrophilic aromatic, selectivity

Substitution, aromatic, electrophilic groups

Substitution, electrophilic aromatic, activation

Substitution, electrophilic fused ring aromatics

Substitution, electrophilic polycyclic aromatics

Sulfur trioxide, electrophilic aromatic substitution

Synthesis of Benzene Derivatives Electrophilic Aromatic Substitution

The General Mechanism for Electrophilic Aromatic Substitution Reactions

The Mechanism of Electrophilic Aromatic Substitution

Thiophene electrophilic aromatic substitution

Thiophenes electrophilic aromatic substitution

Toluene electrophilic aromatic substitution

Toluene electrophilic aromatic substitution, product

Tyrosine electrophilic aromatic substitution

What Is Electrophilic Aromatic Substitution

What Is the Mechanism of Electrophilic Aromatic Substitution

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