pyrrole

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pyrrole

 [pir´ōl]
a basic, cyclic substance, obtained by destructive distillation of various animal substances.

pyr·role

(pir'ōl),
Divinylenimine; a heterocyclic compound found in many biologically important substances, for example, heme.
Synonym(s): azole, imidole

pyrrole

/pyr·role/ (pir´ōl)
1. a toxic, basic, heterocyclic compound; obtained by destructive distillation of various animal substances and used in the manufacture of pharmaceuticals. Pyrrole.
2. a substituted derivative of this structure.

pyrrole

(pîr′ōl′)
n.
1. A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform, that is the parent compound of protoporphyrin.
2. Any of various derivatives of this compound.

pyr·ro′lic (pĭ-rō′lĭk) adj.

pyrrole (C4H4NH)

[pirōl′, pir′ōl]
Etymology: Gk, pyrrhos, red
a five-membered heterocyclic aromatic substance occurring naturally in many compounds in the body. Heme and porphyrin are pyrrole derivatives.

pyr·role

(pir'ōl)
A heterocyclic compound found in many biologically important substances.
Synonym(s): azole, imidole.

pyrrole

a porphyrin building block that has a five-membered heterocyclic structure and contains nitrogen.

pyrrole

a basic, cyclic substance, obtained by destructive distillation of various animal substances. Critical components in the synthesis of porphyrins.
References in periodicals archive ?
Prosthetic groups Originally derived from metabolism of (protoporphyrin amino acids and pyrroles, porphyrin ring + metal atom) synthesis in mitochondria Heme and Red-brown cytochromes: protoporphyrin + iron Other Brown, only in rare conditions from cytochromes: copper overload protoporphyrin + copper (enzymatic cofactors) Hb: heme + Red globins Pink hue ([Fe.
N-(p-toluen) pyrrole (NptPy) was synthesized according to Clauson-Kaas method [25, 26], 0.
The pyrrole 4-Bromo-2-(4-chlorophenyl)-1-(ethoxymethyl)-5-(trifluoromethyl)-1H- pyrrol-3-carbonitrile is the common name of Chlorfenapyr that is used as an acaricide/insecticide and developed by Dow AgroSciences.
Heterocyclic compounds, mainly pyrazines, pyridines, pyrroles and thiazoles, found in fried and roasted chicken are listed in Table 6.
This strongly suggests that the pyrroles and phenyls may indeed form a large, co-planar p-[pi] conjugation, leading to a single absorption peak in visible-light range.
En el caso de los pyrroles, especificamente del Chlorfenapyr, cuyo mecanismo de accion es en la fosforilacion oxidativa, que impide la sintesis de ATP (11), la intoxicacion pareceria irreversible, y por ello seria insuficiente el tratamiento sintomatico, pues podria terminar en la muerte del paciente cinco o siete dias despues de la ingesta, como en el caso de nuestra paciente.
At ICOS 16, Thompson will present work on novel diastereoselective complexation reactions that generate dipyrromethene helicates with > 99 percent selectivity, as well as novel methodology by which to prepare functionalized pyrroles.
Recent research resulted in sophisticated new products where dosage can be as low as a few grams per hectare (fiproles, pyrroles, etc.
In those where KPU was triggered by infection with Lyme organisms, Klinghardt has observed that the KPU is often an unstable form of the condition where there are times of higher levels of pyrroles being excreted and times when this is not observed.
Nitrogen containing heterocycles, such as pyrroles, indoles and carbazoles have attracted considerable attention due to their wide applications in pharmaceuticals and synthetic chemistry.
Pyrroles, pyridines and indoles are potential products of BN as well, but these compounds are common in the pyrolyzates of non-pyrogenic N-moieties.