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O que (quem) é pyrrole - definição
HETEROCYCLIC AROMATIC ORGANIC COMPOUND CONTAINING A NITROGEN ATOM
Pyrole; Pyrrhole; Pyrrol; Pyrroles; Piloty–Robinson pyrrole synthesis; True Pyrrole; Piloty-Robinson pyrrole synthesis; Pyrrole ring; Pyrhole
![[[Zwitterion]]ic structure of both proline enantiomers: (''S'')-proline (left) and (''R'')-proline](https://commons.wikimedia.org/wiki/Special:FilePath/Betain-Proline.png?width=200 "[[Zwitterion]]ic structure of both proline enantiomers: (''S'')-proline (left) and (''R'')-proline")
pyrrole
['p?r??l]
¦ noun Chemistry a sweet-smelling heterocyclic liquid compound present in bone oil and coal tar.
Origin
C19: from Gk purrhos 'reddish' + L. oleum 'oil'.
Pyrrol
·noun A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep red.
Pyrrole-2-carboxylate decarboxylase
CLASS OF ENZYMES
EC 4.1.1.93; Pyrrole-2-carboxylate carboxy-lyase
Pyrrole-2-carboxylate decarboxylase () is an enzyme with systematic name pyrrole-2-carboxylate carboxy-lyase. This enzyme catalyses the following chemical reaction
Wikipédia
Pyrrole
Pyrrole is a heterocyclic, aromatic, organic compound, a five-membered ring with the formula C4H4NH. It is a colorless volatile liquid that darkens readily upon exposure to air. Substituted derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3. Porphobilinogen, a trisubstituted pyrrole, is the biosynthetic precursor to many natural products such as heme.
Pyrroles are components of more complex macrocycles, including the porphyrinogens and products derived therefrom, including porphyrins of heme, the chlorins, bacteriochlorins, and chlorophylls.
