Results 1 to 10 of about 85,504 (285)
Marine Pyrrole Alkaloids [PDF]
Nitrogen heterocycles are essential parts of the chemical machinery of life and often reveal intriguing structures. They are not only widespread in terrestrial habitats but can also frequently be found as natural products in the marine environment.
Kevin Seipp, Leander Geske, Till Opatz
doaj +3 more sources
Synthesis of novel pyrroles and fused pyrroles as antifungal and antibacterial agents
Pyrroles and its fused forms possess antimicrobial activities, they can easily interact with biomolecules of living systems. A series of substituted pyrroles, and its fused pyrimidines and triazines forms have been synthesised, all newly synthesised ...
Rania Helmy Abd El-Hameed +5 more
doaj +2 more sources
Analysis of the flavonoid component of bioactive New Zealand mānuka (Leptospermum scoparium) honey and the isolation, characterisation and synthesis of an unusual pyrrole [PDF]
The flavonoid components of New Zealand mānuka (Leptospermum scoparium) honey have been quantified in a series of 31 honeys of varying non-peroxide antibacterial activity to clarify discrepancies between previous studies reported in the literature. Total
Alber, Dagmar G. +5 more
core +4 more sources
A stepwise synthesis of a-unsubstituted pyrroles with desired substituents in the b-positions of the ring has been devised.
O. A. Golubchicov +2 more
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Recent advances in the syntheses of pyrroles
The pyrrole moiety is an important structural motif in functional materials, natural products, and pharmaceuticals. More and more synthetic strategies toward pyrroles have emerged, where various efficient building blocks are developed and these synthons ...
Tao Shi +7 more
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Carbon Atom Insertion into Pyrroles and Indoles Promoted by Chlorodiazirines
Herein, we report a reaction that selectively generates 3-arylpyridine and quinoline motifs by inserting aryl carbynyl cation equivalents into pyrrole and indole cores, respectively.
Balu D. Dherange +4 more
semanticscholar +1 more source
Herein, we describe the synthesis and characterization of fused pyrroles in cholestane and norcholestane side chains derived from kryptogenin and diosgenin, respectively.
María G. De los Santos +7 more
doaj +1 more source
The first zinc-catalyzed simple and convenient protocol for the synthesis of N-substituted pyrroles through a modified Clauson-Kaas reaction without co-catalyst, ligand, base and solvent has been described.
C.M.A. Afsina, K.R. Rohit, G. Anilkumar
doaj +1 more source
An Easy Synthesis of Monofluorinated Derivatives of Pyrroles from β-Fluoro-β-Nitrostyrenes
The catalyst-free conjugate addition of pyrroles to β-Fluoro-β-nitrostyrenes was investigated. The reaction was found to proceed under solvent-free conditions to form 2-(2-Fluoro-2-nitro-1-arylethyl)-1H-pyrroles.
Alexander S. Aldoshin +3 more
doaj +1 more source
The rhodium-catalyzed transannulation of N-perfluoroalkyl-1,2,3-triazoles with aromatic and aliphatic terminal alkynes under microwave heating conditions afforded N-perfluoroalkyl-3,4-disubstituted pyrroles (major products) and N-fluoroalkyl-2,4 ...
Olga Bakhanovich +3 more
doaj +1 more source

