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Benzenes substitution

Aniline is the parent lUPAC name for ammo substituted derivatives of benzene Substituted derivatives of aniline are numbered beginning at the carbon that bears the ammo group Substituents are listed m alphabetical order and the direction of number mg IS governed by the usual first point of difference rule... [Pg.914]

MINDO/3 calculations, 7, 500 Benzene oxide dipole moment, 7, 553 Benzenes substituted... [Pg.536]

Evidently S, is a measure of intramolecular selectivity because it involves a ratio, the contribution of the benzene substitution rate disappears, and the selectivity factor expresses the selectivity of the reagent X in Eq. (7-83) for the para position relative to the meta position. Each individual partial rate factor, on the other hand, is expressive of an inteimolecular selectivity thus p is a measure of the selectivity of the reagent for the para position in CgHsY relative to benzene. It was observed that Eq. (7-85), where Cmc is a constant, is satisfied for a large number of electrophilic substitutions of toluene. [Pg.374]

Arene (e.g. benzene, substituted benzenes) cycloheptatriene, cycloocta-l,3,5-triene Tropylium (cycloheptatrienyl)... [Pg.925]

Indole has a nonbasic, pyrrole-like nitrogen and undergoes electrophilic substitution more easily than benzene. Substitution occurs at C3 of the electron-rich pyrrole ring, rather than on the benzene ring. [Pg.951]

The frontier orbital theory was developed for electrophilic aromatic substitution (Chapter Elements of a Chemical Orbital Theory by Inagaki in this volume). Application is successful to the ortho-para orientation (Scheme 23a) for the benzenes substituted with electron donating groups. The ortho and para positions have larger HOMO amplitudes. The meta orientation (Scheme 23b) for the electron accepting groups is under control of both HOMO and the next HOMO [25]. [Pg.72]

Orbital Mixing in Benzenes Substituted with an Electron Donating Group... [Pg.73]

The orbital phase theory can be applied to the thermodynamic stability of the disubstituted benzene isomers. The cyclic orbital interaction in the benzene substituted with two EDGs is shown in Scheme 21. The orbital phase is continuous in the meta isomer and discontinuous in the ortho and para isomers (Scheme 22, cf. Scheme 4). [Pg.103]

In the light of this information, we can now consider a few examples of frequently encountered benzene-substitution patterns. [Pg.50]

Although benzenes substituted by six carbon, nitrogen, oxygen, silicon, and sulfur are well known [23-29], such compounds are exceptionally limited in the field of phosphorus chemistry. Benzenes carrying six phosphorus substituents have not been synthesized and only limited compounds such as tetraphosphoryl- [30, 31] or tetraphosphinobenzenes [32], tetraphosphorylquinone [33, 34], tetraphosphoryl-cyclobutadiene complexes [35, 36], and pentaphosphinocyclopentadienyl complexes [37] have been reported (Scheme 20). [Pg.25]

Experimental and theoretical studies of the basicity and acidity of benzene-substituted indoles were performed169. In aqueous solution, the pK values are above —4 for the bases and above 15 for the acids. Gas-phase ionization enthalpies have been calculated using the AMI semiempirical method. [Pg.409]

Ring substituted benzenes, substitution in ring only C6H5-CH3 toluene... [Pg.92]

A detailed comparison of several methods for local and charge-transfer excitation energies in benzenes substituted with donor and acceptor groups has been provided by Jamorski et al. [Pg.502]

Cesium fluoroxysulfate in acetonitrile medium at 35 C converts primary alcohols and alkyl and aryl aldehydes into acid fluorides in high yields.i" Hammett correlation analysis of the fluorination of various benzene-substituted aldehydes gives the reactivity constant31 q = —0.38. It has been shown that solvent polarity plays an extremely important role in the conversion of aldehydes into fluorides the conversion is almost quantitative in acetonitrile, but completely stopped in dichloromethane, hexane or tetrahydrofuran. The presence of ni-... [Pg.300]

The one-bond coupling constants JCH of pyridine ring carbons behave similarly to those of benzenes substituted by electron acceptors such as cyano and nitro groups (Table 3.7). In azole and azines, JCH increases with the number of nitrogen atoms in the ring (Table 3.7). [Pg.140]

Increments for a larger number of substituents in various positions permit 13C shift predictions of pyrroles [435], thiazoles [437], indoles [445], and pyridines [452], Similarly to benzene, substituted carbon shifts essentially are related to substituent electronegativity, while ortho- and para-like carbons are predominantly affected by mesomeric (resonance) effects of donor (( — )-M) or acceptor substituents as shown for methoxy... [Pg.281]

Chlorine can be substituted onto an aromatic ring in the presence of a catalyst, such as ferric chloride. FeClj. nr aluminum chloride. AlClj. The simplest case would be chlorination of benzene. Substitution of a second Cl onto the ring preferentially goes to the para position, but the ortho and mela isomers can he formed with (he latter least favored. If the chlorination... [Pg.366]


See other pages where Benzenes substitution is mentioned: [Pg.287]    [Pg.1093]    [Pg.73]    [Pg.74]    [Pg.128]    [Pg.167]    [Pg.131]    [Pg.131]    [Pg.617]    [Pg.89]    [Pg.90]    [Pg.877]    [Pg.495]    [Pg.76]    [Pg.169]    [Pg.256]    [Pg.257]    [Pg.361]    [Pg.1039]    [Pg.20]    [Pg.728]   
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See also in sourсe #XX -- [ Pg.187 ]

See also in sourсe #XX -- [ Pg.168 ]

See also in sourсe #XX -- [ Pg.756 ]

See also in sourсe #XX -- [ Pg.631 ]

See also in sourсe #XX -- [ Pg.636 ]




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2-azulenyl-substituted benzenes

5-Substituted pyrazol-3 benzene

6-azulenylethynyl-substituted benzenes

8 term substituted benzenes

A Uracil to Substituted Benzene Transformation

Acceptor-substituted benzenes

Acetonitrile benzene, substituted

Alkoxy-substituted benzenes, oxidation

Alkyl groups substituted benzenes

Alkyl-Substituted Benzenes Homologous

Alkyl-substituted benzene

Arenediazonium salts substituted benzene synthesis using

Arenes => substituted benzenes

Aromatic Compounds—Substituted Benzene Rings

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

Aromatic substitution of benzene

Base metal benzenes, substituted, from

Benzenamine Substituted benzenes

Benzene Electrophilic aromatic substitution reactions

Benzene Heterobenzenes Substituted benzenes

Benzene Nucleophilic aromatic substitution reactions

Benzene alkyl substituted, oxidation

Benzene and Aromaticity Electrophilic Aromatic Substitution

Benzene and Substituted Benzenes

Benzene aromatic substitution

Benzene aromatic substitution reactions

Benzene derivatives electrophilic aromatic substitution

Benzene derivatives substituted

Benzene derivatives substitution

Benzene derivatives substitution reactions

Benzene dimer substituted

Benzene electrophilic aromatic substitution, product

Benzene electrophilic substitution

Benzene electrophilic substitution reactions

Benzene methoxy-substituted

Benzene nucleophilic aromatic substitution

Benzene ortho-substituted

Benzene radical substitution

Benzene ring, substitution

Benzene ring, substitution patterns

Benzene rings substituted

Benzene substituted benzenes

Benzene substitution pattern

Benzene substitution products

Benzene substitution reaction

Benzene substitution reactions, resistance

Benzene with substituted aromatics

Benzene, absorption spectrum substituted

Benzene, acylation alkyl substituted, nitration

Benzene, acylation bromine substitution

Benzene, halo-, halogen displacement nitro-, nucleophilic substitution

Benzene, pentamethylradical cation side chain substitution

Benzene, trifluoromethyl-substituted

Benzene, tris aromatic nucleophilic substitution

Benzenes donor-substituted

Benzenes substituted, reactivity

Benzenes, fluorine-substituted

Benzenes, substituted C” substituent

Benzenes, substituted X: substituent

Benzenes, substituted Z substituent

Benzenes, substituted bromo

Benzenes, substituted electrophilic substitutions

Benzenes, substituted nucleophilic substitutions

Benzenes, substituted, condensed-phase

Benzenes, substituted, cyclizations

Benzenes, substituted, from

Benzenes, substituted, from formation

Benzenes, substituted, synthesis

Bromination of substituted benzenes

Chemical Shifts in Substituted Benzenes

Chemistry of Benzene Electrophilic Aromatic Substitution

Chlorination, benzene substituted benzenes

Cyclic mechanism alkyl-substituted benzenes

Cyclotrimerizations substituted benzenes

DRUGS BASED ON A SUBSTITUTED BENZENE RING

Deprotonative metalation substituted benzenes

Di-and poly-substituted derivatives of benzene

Di-substituted benzene derivatives

Disubstituted Benzenes Ortho, Meta, and Para Substitution

Electrophiles with substituted benzenes

Electrophilic Aromatic Substitution in Polysubstituted Benzenes

Electrophilic Aromatic Substitution on Substituted Benzenes

Electrophilic Attack on C-Substituted Benzenes

Electrophilic Attack on X-Substituted Benzenes

Electrophilic Attack on Z-Substituted Benzenes

Electrophilic aromatic substitution benzene derivatives, nomenclature

Electrophilic aromatic substitution benzenes

Electrophilic aromatic substitution of benzene

Electrophilic aromatic substitution of substituted benzenes

Electrophilic substitution reaction monosubstituted benzene

Electrophilic substitution, of benzene

Fused benzene rings substituted

General Aspects of Substitution on a Benzene Nucleus

Halogen-substituted benzen

Hexa-substituted benzene derivatives

How Do Existing Substituents on Benzene Affect Electrophilic Aromatic Substitution

Hydrogen substitution, benzene nucleus

Hydrogenation of Alkyl-Substituted Benzenes

Hydroxy- and methoxy-substituted benzenes

Hydroxylation of Benzene and Substituted Benzenes

In substituted benzenes

Industrial substituted benzene derivatives

Infrared spectra, of substituted benzenes

Ionization potential of substituted benzenes

Isomerism substituted benzenes

Isomers substituted benzene

Key to Success Synthetic Strategies Toward Substituted Benzenes

Limitations on Electrophilic Substitution Reactions with Substituted Benzenes

Metallation of Hetero-Substituted Benzene and Naphthalene with BuLi TMEDA in Hexane

Methyl-substituted benzenes, radiative

Monosubstituted benzenes substitution

Nitration of Substituted Benzene Derivatives

Nitration substituted benzene derivatives

Nitro groups, substituted benzenes

Nitro groups, substituted benzenes reduction

Nucleophilic Attack on Z-Substituted Benzenes

Nucleophilic substitution of benzenes, nitro

Orientation effect, in substituted benzenes

Oxidation and Reduction of Substituted Benzenes

Oxidation of substituted benzenes

P-substituted benzenes

Phenyl-azolones, electrophilic substitution often occurs in the benzene

Physical Properties of Substituted Benzenes

Primary Band of Substituted Benzene and Heteroaromatics

Primary amines with substituted benzenes

Reactions of Benzene and Substituted Benzenes

Reactions of Substituted Benzenes

Reactivity of substituted benzenes

Reduction of substituted benzenes

Regioselectivity substituted benzenes

Representative Electrophilic Aromatic Substitution Reactions of Benzene

Rhodium, selectivity substituted benzenes

SUBSTITUTION ON THE BENZENE NUCLEUS

Simple Substituted Benzene Analytes

Structure-Reactivity Relationships for Substituted Benzenes

Substituted Benzenes The Alvarez-Manzaneda Synthesis of -Taiwaniquinone

Substituted Benzenes, Naphthalenes, and Anthracenes

Substituted Derivatives of Benzene and Their Nomenclature

Substituted benzene derivative synthesis

Substituted benzenes

Substituted benzenes Birch reduction

Substituted benzenes Friedel-Crafts electrophiles

Substituted benzenes arene

Substituted benzenes aromatic compounds

Substituted benzenes aromatic substitution reactions

Substituted benzenes directing effects

Substituted benzenes directing power

Substituted benzenes groups that donate electrons

Substituted benzenes groups that withdraw electrons

Substituted benzenes halogen substituents

Substituted benzenes infrared bending vibrations

Substituted benzenes meta substitution, definition

Substituted benzenes para substitution, definition

Substituted benzenes photosubstitution

Substituted benzenes physical properties

Substituted benzenes synthetic strategies toward

Substituted benzenes vibrational spectra

Substituted benzenes, carbon atom reactivity with

Substituted benzenes, infrared spectra

Substituted divinyl benzene

Substitution of Benzene Rings

Substitution of benzene

Substitution pattern of benzene ring

Substitution reactions of benzene

Substitution reactions with benzene

Substitution substituted benzenes

Substitution substituted benzenes

Substitution, electrophilic monosubstituted benzenes

Synthesis of Benzene Derivatives Electrophilic Aromatic Substitution

Synthesis of Substituted Benzenes

The synthesis of substituted benzenes

Toluene Dioxygenase Indigo or Prostaglandins from Substituted Benzenes via cis-Dihydrodiols

Torsional Isomerism of Substituted Benzenes

Vibrational spectroscopy substituted benzenes

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