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Showing 1 to 20 of 134 for “"Pyrrole"”.
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Synthesis of Dimeric Pyrrole-Imidazole Alkaloids
Dimeric pyrrole-imidazole alkaloids, also known as oroidin family of alkaloids, are a class of marine natural products with unique structural diversity and complexity. Focusing on the synthesis of the higher order dimeric pyrrole-imidazole alkaloids, my graduate work comprises two components: a …
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Chalcone derivatives from pyrrole-2-aldehyde
<p>Claisen first synthesized Chalcone in 1881 by condensing acetophenone with benzaldehyde using sodium methoxide as a condensing agent. Chalcone and its derivatives have been prepared primarily as intermediates for the synthesis of anthocyanins and other related pigments.</p><p>In recent years …
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Calix[4]pyrrole-based ion pair receptors
… on the basis of calix[4]arenes and calix[4]pyrroles. Calix[4]pyrroles and calix[4]arene derivatives bearing crown ethers or ester groups are known to act as efficient receptors for anions and cations, respectively. Therefore, the synthetic combination or modification of these two macrocyclic …
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Synthetic Studies in the Thieno(2,3-B)pyrrole Series
Made available in DSpace on 2014-12-09T17:36:30Z (GMT). No. of bitstreams: 1 7013253.pdf: 831705 bytes, checksum: 30f1649dc4c567b20baa6ae45b1abb74 (MD5) Previous issue date: 1969
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Synthesis and Characterisation of N-substituted Pyrrole Monomers and Polypyrrole Films
… of work, the polymerisation of N-substituted pyrrole monomers and the functionalisation of the monomers or the resulting polymers, with transition metal complexes, were performed. Polymer deposition was executed, utilising the electrochemical deposition technique, due to its facile use and the …
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The Chemistry of N-Benzylthieno(3,2-B)pyrrole and Its Derivatives
Made available in DSpace on 2014-12-09T17:34:54Z (GMT). No. of bitstreams: 1 6408391.pdf: 3873707 bytes, checksum: bbc023ada6783dea5095a8f12ab9405e (MD5) Previous issue date: 1964
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Synthesis and Characterization of Pyrrole Based Adhesion Promoter Systems on Oxide Substrates
For grafting polypyrrole on oxidized surfaces, 3-substituted pyrrole alkyl phosphonic acids, 11-(pyrrol-3-yl undecyl) trimethoxysilanes and 1-substituted pyrrole alkyl organosilanes with different chain length were designed and successfully synthesized as adhesion promoters. These new derivatives …
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Simplified Synthesis of Conjugated Polymers Enabled via 1,4-Dihydropyrrolo[3,2-b]pyrrole
… reach their full potential. Dihydropyrrolo[3,2-b]pyrrole (H<sub>2</sub>DPP) chromophores offer a simple one-pot synthesis to access electron-rich scaffolds for incorporation into a new class of conjugated polymers with tunable optoelectronic properties. Motivated by the simple synthesis, ease of …
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The Substituted Pyrrole JB-03-14 Induces Autophagic Cell Death and Growth Arrest in Breast Tumor Cells
… from marine organisms, specifically brominated pyrroles. We utilized an in vitro breast cancer model to study the effects of pyrroles on tumor proliferation and survival, as well as growth arrest and cell death. Our findings indicate that the substituted pyrrole JG-03-14 induces time dependent …
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1-(1H-pyrrol-2-yl)-1,2-propandione is a crucial pheromone component of the rare North American cerambycid beetle Dryobius sexnotatus
… the first confirmed identification of this pyrrole as a pheromone component of a cerambycine species native to North America, the rare Dryobius sexnotatus Linsley. Headspace volatiles from males contained (R)-3-hydroxyhexan-2-one and the pyrrole (ratio 1:0.13), neither of which were detected …
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Novel surfactants for the production of functional nanostructured materials via the ionic self-assembly (ISA) route = Neuartige Tenside für die Synthese funktioneller nanostrukturierter Materialien durch ionische Selbsorganisation
… surfactants, we designed and synthesized pyrrole-derived monomers as surfactant building blocks. Owing to the presence of the pyrrole moiety, these surfactants are not only polymerizable but are also potentially conductive when polymerized. We adopted single-tailed and double-tailed …
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Molecular modeling of DNA with minor groove binding agents and intercalators
… study shows that one of the bis-lexitropsins (pyrrole-pyrrole-imidazole, PPI) forms several hydrogen bonds between subunits, which may make it less effective for binding DNA. The other bis-lexitropsin (pyrrole-imidazole-pyrrole, PIP) also forms some interactions between dimers, but is mainly …
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The chemistry of some triphenylmethane dyes
A comprehensive series of Pyrrole Green dyes containing substituents in the 2-, 3- and 4-positions of the phenyl ring have been synthesised from the relevant carbinols. The steric and electronic effects of the substituents on the visible absorption spectra of the dyes have been examined and linear …
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