Pyrrole is a heterocyclic, aromatic, organic compound, a five-membered ring with the formula C4H4NH. It is a colorless volatile liquid that darkens readily...

substituted furans, pyrroles, or thiophenes from 1,4-diketones. It is a synthetically valuable method for obtaining substituted furans and pyrroles, which are...

The Knorr pyrrole synthesis is a widely used chemical reaction that synthesizes substituted pyrroles (3). The method involves the reaction of an α-amino-ketone...

Pyrrole-2-carboxylate decarboxylase (EC 4.1.1.93) is an enzyme with systematic name pyrrole-2-carboxylate carboxy-lyase. This enzyme catalyses the following...

Pyrrole-2-carboxylate monooxygenase (EC 1.14.13.130, pyrrole-2-carboxylate oxygenase) is an enzyme with systematic name pyrrole-2-carboxylate,NADH:oxygen...

Polypyrrole (PPy) is an organic polymer obtained by oxidative polymerization of pyrrole. It is a solid with the formula H(C4H2NH)nH. It is an intrinsically conducting...

substituted pyrroles (3). Pyrroles are found in a variety of natural products with biological activity, so the synthesis of substituted pyrroles has important...

unstrained organic 5- and 6-membered rings. Included are pyridine, thiophene, pyrrole, and furan. Another large class of organic heterocycles refers to those...

heterocyclic, macrocyclic, organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH−)...

N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam. It is a colorless liquid, although impure samples can appear yellow...

Pyrrole-2-carboxylic acid is an organic compound with the formula HNC4H3CO2H. It is one of two monocarboxylic acids of pyrrole. It is a white solid. It...

Pyrrole–imidazole polyamides (PIPs) are a class of polyamides have the ability to bind to minor grooves found in the DNA helix. Scientists are experimenting...

Succinimide is an organic compound with the formula (CH2)2(CO)2NH. This white solid is used in a variety of organic syntheses, as well as in some industrial...

for benzene and related heterocycles thiophene and pyrrole. The resonance energies of benzene, pyrrole, thiophene, and furan are, respectively, 152, 88...

5-Bis(hydroxymethyl)pyrrole is an organic chemical compound with formula C6H9O2N, or (HOCH2)2(C4H3N). Its molecule can be described as that of pyrrole C4H5N with...

isoelectronic to and related to pyrrole except that an arsenic atom is substituted for the nitrogen atom. Whereas the pyrrole molecule is planar, the arsole...

The exact color depends on the number of pyrrole rings and the amino acids involved. When four of the pyrrole rings have been joined together, the resulting...

are a class of chemical compounds that contain four pyrrole or pyrrole-like rings. The pyrrole/pyrrole derivatives are linked by (=(CH)- or -CH 2- units)...

Simple monocyclic aromatic rings are usually five-membered rings like pyrrole or six-membered rings like pyridine. Fused/condensed aromatic rings consist...

Indoleamine-pyrrole 2,3-dioxygenase (IDO or INDO EC 1.13.11.52) is a heme-containing enzyme physiologically expressed in a number of tissues and cells...

methyl groups are located on the carbon centers that interconnect the four pyrrole rings. Also unlike porphyrins, the porphyrinogens are highly ruffled. The...

Paine, John B.; Dolphin, David (1985-12-01). "Pyrrole chemistry. An improved synthesis of ethyl pyrrole-2-carboxylate esters from diethyl aminomalonate"...

Trofimov Reaction is a reaction used to synthesize [2,3] disubstituted pyrroles from ketoximes and acetylene using the superbase medium potassium hydroxide...

structure, consisting of a six-membered benzene ring fused to a five-membered pyrrole ring. Indoles are derivatives of indole where one or more of the hydrogen...

reduced pyrrole ring (D). Bacteriochlorophylls c to f occur in the form of closely related homologs with different alkyl groups attached to pyrrole rings...

Naman, C. B.; Deng, Y.; Chai, H.; Keller, W. J.; Kinghorn, A. D. (2014). "Pyrrole Alkaloids with Potential Cancer Chemopreventive Activity Isolated from...

are accessed from a suitable pyrrole derivatives by several methods. Normally, one alpha-position in employed pyrroles is substituted and the other is...

polynaphthalenes polybenzodifurandiones The N is in the aromatic cycle: poly(pyrrole)s (PPY) polycarbazoles polyindoles polyazepines The N is outside the aromatic...

reacts by ipso substitution. Compared to benzene, furans, thiophenes, and pyrroles are more susceptible to electrophilic attack. These compounds all contain...

may act as bases at very low pH, being protonated at the oxygen), and pyrrole is not basic because the lone pair is delocalised as part of an aromatic...