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Aromatic organic compounds consisting only of a conjugated planar ring system
Simple aromatic rings, also known as simple arenes or simple aromatics, are aromatic organic compounds that consist only of a conjugated planar ring system
Simple_aromatic_ring
Chemical property
In organic chemistry, aromaticity is a chemical property describing the way in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals
Aromaticity
Hydrocarbon compound (C6H6)
contained multiple double bonds or multiple rings, but in these years very little was known about aromatic chemistry, and so chemists were unable to adduce
Benzene
Compound containing rings with delocalized pi electrons
nucleophilic aromatic substitutions Arenes are typically split into two categories - benzoids, that contain a benzene derivative and follow the benzene ring model
Aromatic_compound
Chemical compound
low as 0.08 ppm. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings, making it a simple and rather symmetrical
Naphthalene
Basic aromatic rings are heterocyclic aromatic compounds in which the lone pair of electrons of a ring-nitrogen atom is not part of the aromatic system
Basic_aromatic_ring
Aromatic compound (C4H4N2)
established starting from simple atmospheric or volcanic molecules. ANRORC mechanism Purine Pyrimidine metabolism Simple aromatic rings Transition Transversion
Pyrimidine
Electric current observed in aromatic compounds
An aromatic ring current is an effect observed in aromatic molecules such as benzene and naphthalene. If a magnetic field is directed perpendicular to
Aromatic_ring_current
Heterocyclic organic compound,
consisting of a five-membered aromatic ring with four carbon atoms and one oxygen atom. Chemical compounds containing such rings are also referred to as furans
Furan
Heterocyclic aromatic organic compound
electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. In contrast to benzene, the
Pyridine
Chemical compound
classified as an aromatic heterocycle. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered pyrrole ring. Indoles are
Indole
Chemical compound
The 1H NMR of this compound exhibits hallmarks of a system with an aromatic ring current, with the 12H signal of exterior hydrogens at 9.25 ppm, while
Cyclooctadecanonaene
Aromatic, heterocyclic compound
5-triazine. Other aromatic nitrogen heterocycles are pyridines with one ring nitrogen atom, diazines with 2 nitrogen atoms in the ring, triazoles with 3
Triazine
Chemical reaction mechanism
leaving group, such as a halide, on an aromatic ring. Aromatic rings are usually nucleophilic, but some aromatic compounds do undergo nucleophilic substitution
Nucleophilic aromatic substitution
Nucleophilic_aromatic_substitution
Chemical compound
Benzimidazole, an analog with the nitrogen atoms in positions 1 and 3. Simple aromatic rings 7-Nitroindazole, an indazole-based nitric oxide synthase inhibitor
Indazole
Chemical compound
Benzimidazole is a heterocyclic aromatic organic compound. This bicyclic compound may be viewed as fused rings of the aromatic compounds benzene and imidazole
Benzimidazole
Chemical compound
highly soluble in water. The compound is classified as aromatic due to the presence of a planar ring containing 6 π-electrons (a pair of electrons from the
Imidazole
Chemical compound
without the oxygen atom Furan, an analog without the nitrogen atom Simple aromatic rings International Union of Pure and Applied Chemistry (2014). Nomenclature
Isoxazole
Chemical compound
alkaloids such as papaverine. The isoquinoline ring in these natural compound derives from the aromatic amino acid tyrosine. Isoquinoline is a colorless
Isoquinoline
Chemical compound
degree of aromaticity greater than that of corresponding oxazoles. This aromaticity is evidenced by the 1H NMR chemical shift of the ring protons, which
Thiazole
Chemical compound
synthesis (1921) is another variation: Alkylpyrazines Methoxypyrazines Simple aromatic rings Benzene, an analog without the nitrogen atoms Pyridazine, an analog
Pyrazine
Heterocyclic aromatic organic compound
Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also
Purine
Chemical compound
ring-opened enolate-isonitrile, which can be trapped by silylation. Formylation with dimethylformamide gives 2-formyloxazole. Electrophilic aromatic substitution
Oxazole
Chemical compound
exhibits Hückel aromaticity. Borirenes undergo ring-opening reactions with polar reagents and form Lewis adducts, due to the significant ring strain in its
Borirene
Chemical compound
is an aromatic heterocycle with a bicyclic structure consisting of two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring. It is
Quinazoline
Heterocyclic organic compound (C4H4N2)
Pyridazine is an aromatic, heterocyclic, organic compound with the molecular formula C4H4N2. It contains a six-membered ring with two adjacent nitrogen
Pyridazine
Chemical compound
A triazole is a heterocyclic compound featuring a five-membered ring of two carbon atoms and three nitrogen atoms with molecular formula C2H3N3. Triazoles
Triazole
Sulfur-containing aromatic compound
compound with the formula C4H4S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. It is a colorless
Thiophene
Chemical compound
Similar simple aromatic rings Isoquinoline, an analog with the nitrogen atom in position 2 Pyridine, an analog without the fused benzene ring Naphthalene
Quinoline
Ion
The tropylium ion or cycloheptatrienyl cation is an aromatic species with a formula of [C7H7]+. Its name derives from the molecule tropine from which cycloheptatriene
Tropylium_cation
Chemical compound
sulfur analog. Simple aromatic rings Varsol, a petroleum distillate with a boiling range of 150–200 °C. Mann 1970: "In English this ring system has frequently
Arsole
Chemical compound
1,4-Benzodioxine, in chemistry, especially organic chemistry, is an aromatic ring. Benzodioxan 1,3-Benzodioxole Ethylenedioxy v t e
1,4-Benzodioxine
Molecule with a ring of bonded atoms
but simpler than the paclitaxel that follows, which displays a complex ring structure including 3-, 5-, and 7-membered non-aromatic, carbocyclic rings. Paclitaxel
Cyclic_compound
Chemical compound
1,2-Benzisoxazole is an aromatic organic compound with a molecular formula C7H5NO containing a benzene-fused isoxazole ring structure. The compound itself
Benzisoxazole
Chemical compound
Benzoxazole is an aromatic organic compound with a molecular formula C7H5NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine.
Benzoxazole
Chemical compound
(CH)3N2H. It is a heterocycle characterized as an azole with a 5-membered ring of three carbon atoms and two adjacent nitrogen atoms, which are in ortho-substitution
Pyrazole
Boron compound
explosives such as CL-20. Carborazine (C 2H 2B 2N 2) is a six-membered aromatic ring with two carbon atoms, two nitrogen atoms, and two boron atoms in opposing
Borazine
is an heterocyclic compound containing a 6-membered aromatic ring. It is an analog of a benzene ring in which one or more of the carbon atoms has been replaced
Azine_(heterocycle)
Organic compound (C4H4N2); benzene with two CH groups replaced by N
Fateley, William G.; Grasselli, Jeanette G. (1991-01-01). "Aromatic and Heteroaromatic Rings". The Handbook of Infrared and Raman Characteristic Frequencies
Diazine
Chemical compound
some importance in organic chemistry as a non-benzenoid aromatic. The compound consists of a ring of seven carbon atoms with three conjugated alkene groups
Tropone
Electrons that are not associated with a single atom or covalent bond
several adjacent atoms. In the simple aromatic ring of benzene, the delocalization of six π electrons over the C6 ring is often graphically indicated
Delocalized_electron
Hydrocarbon composed of multiple aromatic rings
A polycyclic aromatic hydrocarbon (PAH) is any member of a class of organic compounds that is composed of multiple fused aromatic rings. Most are produced
Polycyclic aromatic hydrocarbon
Polycyclic_aromatic_hydrocarbon
Chemical compound
therefore simpler to study. The commercially important phthalimide is an isoindole-1,3-dione with two carbonyl groups attached to the heterocyclic ring. Illustrative
Isoindole
Chemical reaction which attaches an electrophile to an aromatic ring
of the most important electrophilic aromatic substitutions are aromatic nitration, aromatic halogenation, aromatic sulfonation, and Friedel-Crafts alkylation
Electrophilic aromatic substitution
Electrophilic_aromatic_substitution
Chemical compound
carbonyl group, which gives a partial positive charge with aromatic stabilization on the ring and a partial negative charge on oxygen. Cyclopropenone has
Cyclopropenone
Aromatic organic compound
Benzothiophene is an aromatic organic compound with a molecular formula C8H6S and an odor similar to naphthalene (mothballs). It occurs naturally as a
Benzothiophene
Class of synthetic fiber related to nylon
[citation needed] Aromatic in the longer name refers to the presence of aromatic rings of six carbon atoms. In aramids these rings are connected via amide
Aramid
Chemical compound
possess a considerable amount of aromatic stability. It and C9H9– are the largest monocyclic all-cis ring systems to be aromatic and close to planar. Due to
Azonine
Chemical compound
tetraphospholides that are aromatic. Strongly inductively electron-withdrawing functional groups attached to a tetrazole may stabilize a tautomeric ring-opening equilibrium
Tetrazole
Chemical compound
Benzothiazole, or more specifically 1,3-benzothiazole, is an aromatic heterocyclic compound with the chemical formula C 7H 5NS. It is colorless, slightly
Benzothiazole
Organic ring compound (C4H4NH)
Pyrrole is a heterocyclic, aromatic, organic compound, a five-membered ring with the formula C4H4NH. It is a colorless volatile liquid that darkens readily
Pyrrole
Ion
Cyclopentadienyl anion Jug, Karl (November 1984). "Aromaticity in unusual heteropolar monocyclic rings with (4n + 2) π electrons". The Journal of Organic
Cyclooctatetraenide_anion
Heterocyclic compound consisting of fused benzene and furan rings
Benzofuran is the heterocyclic compound consisting of fused benzene and furan rings. This colourless liquid is a component of coal tar. Benzofuran is the structural
Benzofuran
Mechanical, toroid gasket that seals an interface
O-ring materials. O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable, and have simple
O-ring
Chemical compound
chemistry, is a heterocyclic compound containing a ring complex made up of a benzene ring and a pyrazine ring. It is isomeric with other naphthyridines including
Quinoxaline
Position of molecules attached to benzene rings
describes two substituents sharing the same ring position in an intermediate compound in an electrophilic aromatic substitution. Trimethylsilyl, tert-butyl
Arene_substitution_pattern
Chemical compound
bicyclic heterocycle consisting of fused cyclohexa-1,3-diene and furan rings. It is isomeric with benzofuran. Isobenzofuran is highly reactive and rapidly
Isobenzofuran
Chemical compound
5-triaminopyrimidine by cyclization of cyanoacetylguanidine. Like most aromatic 1,2-diamines, 4-hydroxy-2,4,5-triaminopyrimidine condenses with glyoxal
4-Hydroxy-2,4,5-triaminopyrimidine
4-Hydroxy-2,4,5-triaminopyrimidine
Chemical compound
Hexachloroborazine features a planar, six-membered ring with alternating boron and nitrogen atoms, analogous to the carbon ring in benzene. Each boron atom is bonded
Hexachloroborazine
Class of chemical compounds
or more heteroatoms on the ring. It consists of two pentagonal rings. Heteropentalenes with 10 pi electrons show aromaticity. Some of heteropentalenes
Heteropentalene
Chemical compound
The locations of the heteroatoms in anthranil results in disrupted aromaticity, making it by far the least stable of the 3 structural isomers. Sigma-Aldrich
Anthranil
Amino acid having an aromatic ring
An aromatic amino acid is an amino acid that includes an aromatic ring. Among the 20 standard amino acids, histidine, phenylalanine, tryptophan, tyrosine
Aromatic_amino_acid
Chemical compound
possessing both positive and negative charges which are delocalized across the ring. N-phenylsydnone was first prepared in 1935 by John Campbell Earl and Alan
Sydnone
Set of reactions to attach substituents to an aromatic ring
aromatic ring. Friedel–Crafts reactions are of two main types: alkylation reactions and acylation reactions. Both proceed by electrophilic aromatic substitution
Friedel–Crafts_reaction
Chemical compound
Phthalazine, also called benzo-orthodiazine or benzopyridazine, is a heterocyclic organic compound with the molecular formula C8H6N2. It is isomeric with
Phthalazine
Chemical reaction which adds a nitro (–NO2) group onto a molecule
Regioselectivity is strongly affected by substituents on aromatic rings (see electrophilic aromatic substitution). For example, nitration of nitrobenzene
Nitration
Concept in quantum mechanics
series. This simple model can be used to find approximate energy levels of some ring molecules, such as benzene. In organic chemistry, aromatic compounds
Particle_in_a_ring
Molecular groups or substituents derived from an aromatic ring
aryl is any functional group or substituent derived from an aromatic ring, usually an aromatic hydrocarbon, such as phenyl and naphthyl. "Aryl" is used for
Aryl_group
Organic compound used in dyes
the formula C13H9N. Acridines are substituted derivatives of the parent ring. It is a planar molecule that is structurally related to anthracene with
Acridine
Cyclic nitrogen compound with formula HN5
Pentazole is an aromatic molecule consisting of a five-membered ring with all nitrogen atoms, one of which is bonded to a hydrogen atom. It has the molecular
Pentazole
Chemical compound
an aromatic chemical compound with properties intermediate between benzene and borazine. Its chemical formula is C4BNH6. It resembles a benzene ring, except
1,2-Dihydro-1,2-azaborine
Method of determining aromaticity in organic molecules
In organic chemistry, Hückel's rule predicts that a planar ring molecule will have aromatic properties if it has (4n + 2)π-electrons, where n is a non-negative
Hückel's_rule
Amine with two amino groups
classified as alkylamines since the amine is not directly attached to an aromatic ring. o-xylylenediamine or OXD m-xylylenediamine or MXD p-xylylenediamine
Diamine
Organic compound
3-oxazolium hydroxide, inner salt; oxido-oxazolium) is a mesoionic heterocyclic aromatic chemical compound, with the molecular formula C3H3NO2. The name refers
Münchnone
Chemical compound
3,5]triazine is a heterocyclic aromatic organic compound that consists of a s-triazine ring fused to an imidazole ring. It is an isostere and isomer of
5-Aza-7-deazapurine
Chemical compounds and groups containing nitrogen with a lone pair (:N)
7 N {\displaystyle {\ce {C6H7N}}} ) is the simplest aromatic amine, consisting of a benzene ring bonded to an amino ( − NH 2 {\displaystyle {\ce {-NH2}}}
Amine
Chemical compound
1,5-Methano[10]annulene, 1,5-methanoazulene or homoazulene is a hydrocarbon with chemical formula C11H10. Homoaromaticity Cyclodecapentaene 1,6-Methano[10]annulene
1,5-Methano(10)annulene
Class of chemical compounds
Sydnone imine is a mesoionic heterocyclic aromatic chemical compound. Sydnone imine is the imine of sydnone where the keto functional group of sydnone
Sydnone_imine
benzene and borazine. Its chemical formula is C3BN2H5. It resembles a benzene ring, except that three carbons are replaced by two nitrogen and boron, respectively
Diazaborine
Category of polymers, in which the monomers are joined together by ester links
groups like isopropylidene; these groups allow bond rotation between aromatic rings. Less symmetrical structures, for example, based on meta- or ortho-linked
Polyester
Chemical compound
salts are easily produced from simple starting materials through a condensation reaction. Pyrylium salts with aromatic substituents, such 2,4,6-triphenylpyrylium
Pyrylium
Antimicrobial agent
Breast cancer Chloroform Chloroxylenol Dial (soap) Hand sanitizer Simple aromatic ring Boyce JM, Pittet D, Healthcare Infection Control Practices Advisory
Triclosan
Molecule with two joined rings
g. decalin and norbornane), or can be aromatic (e.g. naphthalene), or a combination of aliphatic and aromatic (e.g. tetralin). Many properties of saturated
Bicyclic_molecule
Computational methods for identifying aromatic ring systems
Aromaticity detection in cheminformatics refers to computational algorithms and models used to identify aromatic ring systems in molecular graphs. Unlike
Aromaticity_(cheminformatics)
Chemical compound
Benzophosphole is the organic compound with the chemical formula C8H7P; it is the phosphorus analog of indole. The term benzophosphole also refers to substituted
Benzophosphole
Chemical species structure notation
OC1CCCCC1O; choosing a different ring-break location produces a branched structure that requires parentheses to write. Aromatic rings such as benzene may be written
Simplified Molecular Input Line Entry System
Simplified_Molecular_Input_Line_Entry_System
LaTeX package for drawing chemical structures
angles and lengths Support for single, double, triple, and aromatic bonds Cyclic compounds and ring structures Reaction arrows and mechanisms Integration with
Chemfig
Molecule composed of three interlocked rings
6-diformylpyridine (an aromatic compound with two aldehyde groups positioned ortho to the nitrogen atom of the pyridine ring) and a symmetric diamine
Molecular_Borromean_ring
O-alkyl derivative of phenol
than a benzene ring. When substituents on aromatic rings are present, standard IUPAC nomenclature should be followed when naming aromatic compounds. Phenol
Phenol_ether
Chemical compound
Benzo[b]thiophene is an isomer with the sulfur in the position adjacent to the benzene ring. Benzo[b]thiophene is more stable and far more commonly encountered. Cava
Benzo(c)thiophene
Organic reaction used to convert arenes to cyclohexadienes
Australian chemist Arthur Birch and involves the organic reduction of aromatic rings in an amine solvent (traditionally liquid ammonia) with an alkali metal
Birch_reduction
Noncovalent molecular interaction
with the aromatic ring, centered on top of the π face along the 6-fold axis. Studies have shown that electrostatics dominate interactions in simple systems
Cation–π_interaction
Chemical compounds in which hydroxyl group is attached directly to an aromatic ring
bonded directly to an aromatic hydrocarbon group. The simplest is phenol, C 6H 5OH. Phenolic compounds are classified as simple phenols or polyphenols
Phenols
Organic compound consisting entirely of hydrogen and carbon
have the formula CnH2n−2. Aromatic hydrocarbons, also known as arenes, which are hydrocarbons that have at least one aromatic ring. 10% of total nonmethane
Hydrocarbon
Aromatic, boron-containing rings
seven-membered unsaturated ring with a tricoordinate boron in it. Simple borepins are analogues of cycloheptatriene, which is a seven-membered ring containing three
Borepin
Chemical compound
criterion to evaluate the aromatic character of the structures under study. The global minimum (D2h symmetry ring) and the D6h symmetry ring show values of −3
Silabenzene
Aromatic heterocyclic compounds with 6 carbon
Each diazapentalene has 10 pi electrons and shows aromaticity. The isomers with one nitrogen in each ring are known as pyrrolopyrroles. Some of the diazapentalenes
Diazapentalene
Chemical reaction
lithiation of anisole. The general principle is outlined in scheme 1. An aromatic ring system with a DMG group 1 interacts with an alkyllithium such as n-butyllithium
Directed_ortho_metalation
Reaction with a cyclic transition state
predictions. The aromatic transition state theory assumes that the minimum energy transition state for a pericyclic process is aromatic, with the choice
Pericyclic_reaction
Type of organic molecule with a linear structure
isomers of alkenes, not of alkanes, because the ring's closure involves a C-C bond. Having no rings (aromatic or otherwise), all open-chain compounds are
Open-chain_compound
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
Boy/Male
Australian, British, English
From the Temple Settlement
Boy/Male
Indian
Aromatic
Girl/Female
Muslim/Islamic
Aromatic
Male
Italian
Italian form of Hebrew Shimown, SIMONE means "hearkening."
Girl/Female
Muslim
Aromatic
Girl/Female
Arabic, French, Muslim
Aromatic
Female
Scandinavian
 Scandinavian feminine form of Greek Symeon, SIMONE means "hearkening." Compare with other forms of Simone.
Boy/Male
Arabic, Muslim
Fragrant; Aromatic
Female
Finnish
 Feminine form of Finnish Simo, SIMONE means "hearkening." Compare with another form of Simone.
Female
French
 Feminine form of French Simon, SIMONE means "hearkening." Compare with other forms of Simone.
Girl/Female
Indian, Telugu
Simple Looking; Good Smile
Girl/Female
Muslim/Islamic
Aromatic
Surname or Lastname
English (mainly Nottinghamshire)
English (mainly Nottinghamshire) : unexplained; probably a variant of Sample.
Boy/Male
Muslim
Aromatic
Girl/Female
Arabic, Muslim
Aromatic
Boy/Male
Muslim/Islamic
Aromatic
Boy/Male
Shakespearean
The Merry Wives of Windsor' Servant to Slender.
Female
Icelandic
 Feminine form of Icelandic SÃmon, SIMONE means "hearkening." Compare with other forms of Simone.
Surname or Lastname
English (Kent)
English (Kent) : origin uncertain; perhaps a variant of the habitational name Wimbley, or a variant of Wimple, a metonymic occupational name for a maker of wimples, from Middle English wimple (Old English wimpel ‘veil’).
Girl/Female
American, Assamese, British, Celebrity, English, Gujarati, Hindu, Indian, Kannada, Malayalam, Sindhi, Telugu
A Small; Natural Hollow on the Surface of the Body; Happy; Dimples
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
Girl/Female
Arabic, Egyptian, Indian, Muslim
Newly Born
Girl/Female
Muslim
Of radiant forehead
Girl/Female
Arabic, Muslim
Name of the Prophet's Daughter
Girl/Female
American, Australian, Vietnamese
In Place of; Willow Tree
Boy/Male
Latin Hungarian
Laurel.
Boy/Male
Australian, Hebrew
Beloved of Jehovah
Girl/Female
Tamil
Flower
Boy/Male
Hindu
Lightning, Electricity
Female
English
Modern variant spelling of English Erica, ERYKAH means "ever-ruler."
Boy/Male
Indian, Sanskrit
Desirable; Acceptable
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
SIMPLE AROMATIC-RING
a.
Not capable of being decomposed into anything more simple or ultimate by any means at present known; elementary; thus, atoms are regarded as simple bodies. Cf. Ultimate, a.
a.
Without subdivisions; entire; as, a simple stem; a simple leaf.
imp. & p. p.
of Rimple
a.
Plain; unadorned; as, simple dress.
a.
Same as Acroamatic.
a.
Of or pertaining to the body as a whole; corporeal; as, somatic death; somatic changes.
a.
Direct; clear; intelligible; not abstruse or enigmatical; as, a simple statement; simple language.
a.
Pertaining to, or containing, aroma; fragrant; spicy; strong-scented; odoriferous; as, aromatic balsam.
a.
Full of dimples, or small depressions; dimpled; as, the dimply pool.
a.
Consisting of a single individual or zooid; as, a simple ascidian; -- opposed to compound.
a.
Entertaining ideas and expectations suited to a romance; as, a romantic person; a romantic mind.
n.
One who makes up samples for inspection; one who examines samples, or by samples; as, a wool sampler.
a.
Not luxurious; without much variety; plain; as, a simple diet; a simple way of living.
a.
Single; not complex; not infolded or entangled; uncombined; not compounded; not blended with something else; not complicated; as, a simple substance; a simple idea; a simple sound; a simple machine; a simple problem; simple tasks.
a.
Of or pertaining to romance; involving or resembling romance; hence, fanciful; marvelous; extravagant; unreal; as, a romantic tale; a romantic notion; a romantic undertaking.
v. i.
To gather simples, or medicinal plants.
n.
The Aramaic language.
v. t.
To take or to test a sample or samples of; as, to sample sugar, teas, wools, cloths.
a.
Alt. of Aromatical
a.
Simple; not wise; weak; silly.