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Aromatics heterocyclic

Jeanmaire D L and Van Duyne R P 1977 Part I heterocyclic, aromatic and aliphatic amines adsorbed on the anodized silver electrode J. Electroanal. Chem. 84 1-20... [Pg.1228]

Cyclic compounds that contain at least one atom other than carbon within their ring are called heterocyclic compounds, and those that possess aromatic stability are called het erocyclic aromatic compounds Some representative heterocyclic aromatic compounds are pyridine pyrrole furan and thiophene The structures and the lUPAC numbering system used m naming their derivatives are shown In their stability and chemical behav lor all these compounds resemble benzene more than they resemble alkenes... [Pg.460]

Heterocyclic aromatic compounds can be polycyclic as well A benzene ring and a pyridine ring for example can share a common side m two different ways One way gives a compound called quinoline the other gives isoquinoline... [Pg.460]

A large group of heterocyclic aromatic compounds are related to pyrrole by replacement of one of the ring carbons p to nitrogen by a second heteroatom Com pounds of this type are called azoles... [Pg.461]

The structural types described m this section are but a tiny fraction of those pos sible The chemistry of heterocyclic aromatic compounds is a nch and varied held with numerous applications... [Pg.461]

Section 11 22 Heterocyclic aromatic compounds are compounds that contain at least one atom other than carbon within an aromatic ring... [Pg.467]

Section 11 23 Huckel s rule can be extended to heterocyclic aromatic compounds Unshared electron pairs of the heteroatom may be used as tt electrons as necessary to satisfy the 4n + 2 rule... [Pg.467]

Acridine is a heterocyclic aromatic compound obtained from coal tar that is used in the syn thesis of dyes The molecular formula of acndine is C13H9N and its ring system is analogous to that of anthracene except that one CH group has been replaced by N The two most stable reso nance structures of acridine are equivalent to each other and both contain a pyndine like struc tural unit Wnte a structural formula for acridine... [Pg.472]

Section 12 18 Heterocyclic aromatic compounds may be more reactive or less reactive than benzene Pyridine is much less reactive than benzene but pyrrole furan and thiophene are more reactive... [Pg.512]

Halides derived from certain heterocyclic aromatic compounds are often quite reac tive toward nucleophiles 2 Chloropyridme for example reacts with sodium methoxide some 230 million times faster than chlorobenzene at 50°C... [Pg.981]

Nucleic acids are acidic substances present m the nuclei of cells and were known long before anyone suspected they were the primary substances involved m the storage transmission and processing of genetic information There are two kinds of nucleic acids ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) Both are complicated biopolymers based on three structural units a carbohydrate a phosphate ester linkage between carbohydrates and a heterocyclic aromatic compound The heterocyclic aro matic compounds are referred to as purine and pyrimidine bases We 11 begin with them and follow the structural thread... [Pg.1155]

Two nitrogen containing heterocyclic aromatic compounds—pyrimidine and purine— are the parents of the bases that constitute a key structural unit of nucleic acids... [Pg.1155]

Section 28 1 Many biologically important compounds are related to the heterocyclic aromatic compounds pyrimidine and purine... [Pg.1186]

Pyranose form (Section 25 7) Six membered ring ansing via cyclic hemiacetal formation between the carbonyl group and a hydroxyl group of a carbohydrate Pyrimidine (Section 28 1) The heterocyclic aromatic com pound... [Pg.1292]

UK Ministry of Agriculture Fisheries and Food and Flealth and Safety Executive, Annual Report of the Working Party on Pesticide Residues in Food (1997), MAFF Publications, London, 1997. lARC, Monographs on the Evabiation of the Carcinogenic Risk of Chemicals to Hnmans Volume 56 Some Naturally Occurring Substances Food Items and Constituents, Heterocyclic Aromatic Amines and Mycotoxins, WFIO, Geneva, 1979, p. 397. [Pg.15]

Section 11.23 HiickeTs rule can be extended to heterocyclic aromatic compounds. [Pg.467]

Pyridine and imidazole were two of the heterocyclic aromatic compounds described in Section 11.22. [Pg.922]

Imidazole and its derivatives form an interesting and important class of heterocyclic aromatic fflnines. Imidazole is approximately 100 times more basic than pyridine. [Pg.922]

From the preparative point of view, reactions of heterocyclic aromatic compounds with nucleophilic reagents are very important, especially the reactions of their quaternary salts containing a formal enamine grouping in the molecule. [Pg.294]

First heterocyclic aromatic analogue of pyridine (Ph3C5H2P) prepared by G. MUrkl, followed by the parent compound C3H3P in 1971 (A. J. Ashe). [Pg.474]

The three possibilities of synthesizing a C5 chain, namely, C2 +Ci + C2. C2 -t C2 -I- Cl, or Cl + C3 + Cl, lead to pyrylium salts having identical substituents in positions 2 and 4 in the second case, or 2 and 6 in the first and third cases. Despite this limitation, such syntheses are very convenient because they make the pyrylium salts easily accessible (more so than other six-membered heterocyclic aromatics) from aliphatic starting materials. [Pg.301]

The following are the particular situations arising in heterocyclic aromatic chemistry which can be, and have been, treated in terms of the Hammett equation and which will be discussed in the following sections. [Pg.215]


See other pages where Aromatics heterocyclic is mentioned: [Pg.460]    [Pg.461]    [Pg.462]    [Pg.462]    [Pg.507]    [Pg.507]    [Pg.1292]    [Pg.5]    [Pg.16]    [Pg.460]    [Pg.461]    [Pg.462]    [Pg.462]    [Pg.507]    [Pg.507]    [Pg.1292]    [Pg.1292]    [Pg.328]   
See also in sourсe #XX -- [ Pg.159 ]

See also in sourсe #XX -- [ Pg.49 , Pg.79 ]




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1,3-dipoles aromatic heterocycles

Addition to nitrogen heterocyclic aromatic compounds

Additions of Allyl- and Benzyltrimethylsilanes to Aromatic Heterocyclic N-Oxides

Amination of Aromatic Heterocyclic Lactam Systems

Aromatic Compounds, definition heterocyclic

Aromatic Five-Membered Ring Heterocyclics

Aromatic Heterocycles Pyridine and Pyrrole

Aromatic and Heterocyclic Compounds

Aromatic and Heterocyclic Ligands

Aromatic and heterocyclic amines

Aromatic and heterocyclic double bonds

Aromatic boron heterocycles

Aromatic compounds and aromaticity heterocyclic

Aromatic compounds heterocycles

Aromatic compounds heterocyclic spectra

Aromatic heterocycle synthesis benzimidazoles

Aromatic heterocycle synthesis indoles

Aromatic heterocycle synthesis pyridazines

Aromatic heterocycle synthesis pyridines

Aromatic heterocycle synthesis pyridones

Aromatic heterocycle synthesis quinolines

Aromatic heterocycles defined

Aromatic heterocycles electron-deficient

Aromatic heterocycles electron-excessive

Aromatic heterocycles five-membered

Aromatic heterocycles nitrations, nitric acid

Aromatic heterocycles pyridine

Aromatic heterocycles, Buchwald-Hartwig

Aromatic heterocycles, reduction

Aromatic heterocyclic amines physical properties

Aromatic heterocyclic compounds, solid-phase

Aromatic heterocyclic containing

Aromatic heterocyclic imide system

Aromatic heterocyclic nitrogen compounds

Aromatic heterocyclics - production and uses

Aromatic heterocyclics, and

Aromatic hydrocarbons and heterocycles photocycloaddition

Aromatic nitrogen heterocycles

Aromatic nitrogen heterocycles oxygen nucleophiles

Aromatic phosphorus heterocycles

Aromatic phosphorus heterocycles review

Aromatic six-membered nitrogen heterocycles

Aromatic six-membered nitrogen heterocycles regioselective substitution

Aromatic-heterocyclic polymers

Aromatic-heterocyclic polymers characterization

Aromatic-heterocyclic polymers processing

Aromatic-heterocyclic polymers solubility

Aromaticities of heterocycles

Aromaticities of heterocycles and

Aromaticity and heterocycles

Aromaticity aromatic heterocycles

Aromaticity aromatic heterocycles

Aromaticity concept of in heterocyclic chemistry

Aromaticity heterocyclic aromatic compounds

Aromaticity heterocyclics

Aromaticity heterocyclics

Aromaticity nitrogen heterocycles

Aromaticity of heterocycles

Aromaticity of heterocyclic compounds

Aromaticity of heterocyclic rings

Aromaticity of heterocyclics

Aromaticity oxygen heterocycles

Aromaticity, of five-membered heterocycles

Aromatics and Heterocyclics

Aromatics arenes, heterocycles

Aromatics, n-heterocyclic

Aromatization N-heterocyclics

Aromatization of N-heterocyclics

Benzo-fused five-membered heterocycles aromaticity

Black Sheep of the Family Heterocyclic Aromatic Compounds

Carcinogens heterocyclic aromatic amines

Cathodic Reduction of Aromatic and Heterocyclic Halogen Compounds

Chemical shifts of selected heterocyclic and polycyclic aromatic

Concept of aromaticity in heterocyclic

Cyclizations to 5-Membered Aromatic Heterocycles

Derivatives of Aromatic Heterocyclic Compounds

Diels-Alder reaction with aromatic heterocycles

Eight-membered heterocycles, aromaticity

Electron-poor aromatic heterocycles

Electron-rich aromatic heterocycles

Fish, heterocyclic aromatic amines

Five-Membered Aromatic Heterocycles with One Heteroatom

Five-membered heterocycles aromaticity

Five-membered ring heterocycles, relative aromaticity

Four-membered heterocycles aromaticity

Grignard reagents addition heterocyclic aromatic

Group 2 - Aromatic and Heterocyclic Protons

HETEROCYCLES FUSED TO TWO AROMATIC RINGS

Heterobenzenes and Other Heterocyclic Aromatic Compounds

Heterocycle synthesis aromatic

Heterocycles aromatic

Heterocycles aromatic

Heterocycles aromatic polyesters

Heterocycles aromatic with 2 heteroatoms

Heterocycles aromatic, 5-ring

Heterocycles aromatic, reactions

Heterocycles aromaticity

Heterocycles aromatization

Heterocycles aromatization

Heterocycles from aromatic compounds

Heterocycles nucleophilic aromatic

Heterocycles relative aromaticity

Heterocycles, acylation electrophilic aromatic

Heterocycles, aromatic Quinoline

Heterocycles, aromatic, halogen derivatives, reduction

Heterocycles, aromatic, nickel

Heterocyclic Aromatic Compounds and Huckels Rule

Heterocyclic Aromatic Systems

Heterocyclic aromatic

Heterocyclic aromatic amine bases

Heterocyclic aromatic amines

Heterocyclic aromatic amines (HAAs

Heterocyclic aromatic amines Subject

Heterocyclic aromatic amines analysis

Heterocyclic aromatic amines basicity

Heterocyclic aromatic amines bromination

Heterocyclic aromatic amines electrochemical detection

Heterocyclic aromatic amines electrophoresis

Heterocyclic aromatic amines liquid chromatography

Heterocyclic aromatic amines mass spectrometry

Heterocyclic aromatic compounds activating electrophilic functional

Heterocyclic aromatic compounds description

Heterocyclic aromatic compounds fused

Heterocyclic aromatic compounds groups

Heterocyclic aromatic compounds nitrogen atom

Heterocyclic aromatic compounds pyridine resembles benzene

Heterocyclic aromatic compounds pyrrole

Heterocyclic aromatic compounds thiophene

Heterocyclic aromatic compounds valence electrons

Heterocyclic aromatic fiber

Heterocyclic aromatic nitrogen

Heterocyclic aromatic rings

Heterocyclic aromatic species

Heterocyclic aromatic substrates

Heterocyclic aromatic systems, lithiation

Heterocyclic aromaticity, concept

Heterocyclic compounds Cyclic organic aromatic

Heterocyclic compounds aromatic

Heterocyclic compounds aromatic heterocycles

Heterocyclic compounds electrophilic aromatic

Heterocyclic compounds electrophilic aromatic substitution

Heterocyclic compounds nucleophilic aromatic

Heterocyclic compounds nucleophilic aromatic substitution

Heterocyclic compounds, aromatic benzimidazoles

Heterocyclic compounds, aromatic benzofurans

Heterocyclic compounds, aromatic benzoxazoles

Heterocyclic compounds, aromatic coumarins

Heterocyclic compounds, aromatic dihydropyridines

Heterocyclic compounds, aromatic furans

Heterocyclic compounds, aromatic imidazoles

Heterocyclic compounds, aromatic indoles

Heterocyclic compounds, aromatic indolizines

Heterocyclic compounds, aromatic isoxazoles

Heterocyclic compounds, aromatic oxadiazoles

Heterocyclic compounds, aromatic oxazoles

Heterocyclic compounds, aromatic purines

Heterocyclic compounds, aromatic pyrazoles

Heterocyclic compounds, aromatic pyridines

Heterocyclic compounds, aromatic pyrimidines

Heterocyclic compounds, aromatic pyrroles

Heterocyclic compounds, aromatic quinazolines

Heterocyclic compounds, aromatic quinolines

Heterocyclic compounds, aromatic tetrazines

Heterocyclic compounds, aromatic tetrazoles

Heterocyclic compounds, aromatic thiadiazoles

Heterocyclic compounds, aromatic thiazoles

Heterocyclic compounds, aromatic thiophenes

Heterocyclic compounds, aromatic triazines

Heterocyclic compounds, aromatic triazoles

Heterocyclization and Aromatization

High performance fibers heterocyclic aromatic fiber

Huckel rule heterocyclic aromatic compounds

Hydrogenation of Heterocyclic Aromatic Compounds

Liquid Crystalline Aromatic Heterocyclic Polymers

Methanol aromatic heterocyclics

Nine-membered heterocycles, aromaticity

Nitration of aromatic and heterocyclic compounds

Nitrogen heterocycles aromatic six-membered, regioselective

Non-Aromatic Heterocycles with sp2 Ring Carbons

Non-aromatic Boron Heterocyclics

Nucleophiles, reaction with aromatic heterocyclic bases

Nucleophilic aromatic heterocycles allylation

Nucleophilic aromatic heterocycles ambident

Nucleophilic aromatic heterocycles ambident palladium -catalyzed

Nucleophilic aromatic heterocycles palladium -catalyzed allylation

Nucleophilic aromatic heterocycles, ambident palladium -catalyzed allylation

Nucleophilic aromatic heterocyclic systems

Nucleophilic aromatic of heterocyclic systems

Nucleophilic aromatic substitution heterocyclic systems

Organometallic heterocycles aromaticity

Other Aromatic Six-Membered Ring Heterocyclics

Other aromatic hydrocarbons and heterocyclic compounds

Pi-Deficient Aromatic Heterocycles

Pi-Excessive Aromatic Heterocycles

Polycyclic aromatic heterocycles

Polycyclic aromatic oxygen heterocycles

Polycyclic aromatic sulfur heterocycles

Polyesters aromatic heterocycle containing

Polyimides aromatic heterocyclic

Polymers aromatic heterocyclic type

Polynuclear Aromatic Hydrocarbons and Heterocyclic Compounds

Polyphenylenes, aromatic heterocyclic

Protection for Imidazoles, Pyrroles, Indoles, and other Aromatic Heterocycles

Pyridine and Pyrrole Two Aromatic Heterocycles

Radical-nucleophilic aromatic substitution heterocyclic synthesis

Reactions heterocyclic aromatic compounds

Reactivity of Aromatic Heterocycles

Reduction of Heterocyclic Aromatics

Reduction of Non-aromatic Heterocycles Containing the C N Function

Reductions of Heterocyclic N-Oxides and Aromatic Nitro Groups

Regioselective substitution in aromatic six-membered nitrogen heterocycles

Regioselective substitution in aromatic sixmembered nitrogen heterocycles

Regioselective, in aromatic six-membered nitrogen heterocycles

Replacement of NH2 in aromatic or heterocyclic compounds by fluorine (Schiemann reaction)

Selenophens Fused to Six-membered Heterocyclic Aromatic Rings

Six-membered aromatic heterocycles can have oxygen in the ring

Some classic aromatic heterocycle syntheses

Structures and Spectroscopic Properties of Aromatic Heterocycles

Substitution in Heterocyclic Aromatic Compounds

Substitutions of Aromatic Heterocycles

Sulfur-containing aromatic heterocycles

Synthesis heterocyclic aromatic compounds

Synthesis of Aromatic Heterocycles

The Palladium-Catalyzed Synthesis of Aromatic Heterocycles

Three-membered heterocycles aromaticity

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