Simple aromatic rings, also known as simple arenes or simple aromatics, are aromatic organic compounds that consist only of a conjugated planar ring system...

In organic chemistry, aromaticity is a chemical property describing the way in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals...

Basic aromatic rings are aromatic rings in which the lone pair of electrons of a ring-nitrogen atom is not part of the aromatic system and extends in...

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...

established starting from simple atmospheric or volcanic molecules. ANRORC mechanism Purine Pyrimidine metabolism Simple aromatic rings Transition Transversion...

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 substitutions Arenes are typically split into two categories - benzoids, that contain a benzene derivative and follow the benzene ring model...

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...

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...

Benzimidazole is a heterocyclic aromatic organic compound. This bicyclic compound may be viewed as fused rings of the aromatic compounds benzene and imidazole...

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...

5-triazine. Other aromatic nitrogen heterocycles are pyridines with one ring nitrogen atom, diazines with 2 nitrogen atoms in the ring, triazoles with 3...

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...

synthesis (1921) is another variation: Alkylpyrazines Methoxypyrazines Simple aromatic rings Benzene, an analog without the nitrogen atoms Pyridazine, an analog...

degree of aromaticity greater than that of corresponding oxazoles. This aromaticity is evidenced by the 1H NMR chemical shift of the ring protons, which...

Benzimidazole, an analog with the nitrogen atoms in positions 1 and 3. Simple aromatic rings 7-Nitroindazole, an indazole-based nitric oxide synthase inhibitor...

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...

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...

Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also...

low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is the main ingredient of traditional...

Similar simple aromatic rings Isoquinoline, an analog with the nitrogen atom in position 2 Pyridine, an analog without the fused benzene ring Naphthalene...

alkaloids such as papaverine. The isoquinoline ring in these natural compound derives from the aromatic amino acid tyrosine. Isoquinoline is a colorless...

ring-opened enolate-isonitrile, which can be trapped by silylation. Formylation with dimethylformamide gives 2-formyloxazole. Electrophilic aromatic substitution...

of the most important electrophilic aromatic substitutions are aromatic nitration, aromatic halogenation, aromatic sulfonation, alkylation Friedel–Crafts...

without the oxygen atom Furan, an analog without the nitrogen atom Simple aromatic rings International Union of Pure and Applied Chemistry (2014). Nomenclature...

An aromatic ring current is an effect observed in aromatic molecules such as benzene and naphthalene. If a magnetic field is directed perpendicular to...

Pyridazine is an aromatic, heterocyclic, organic compound with the molecular formula C4H4N2. It contains a six-membered ring with two adjacent nitrogen...

A triazole is a heterocyclic compound featuring a five-membered ring of two carbon atoms and three nitrogen atoms with molecular formula C2H3N3. Triazoles...

Benzoxazole is an aromatic organic compound with a molecular formula C7H5NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine....

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...