Articles with "pyrrole fused" as a keyword



Synthesis, properties and application of novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis(BF2) fluorescent dyes: BOPYPYs

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Published in 2019 at "Chinese Chemical Letters"

DOI: 10.1016/j.cclet.2019.07.027

Abstract: Abstract Novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis(BF2) fluorescent dyes (BOPYPYs) were obtained by reaction of pyrrole-2-carboxaldehyde with 1-(pyrazin-2-yl)hydrazine in the presence of Et3N-BF3·Et2O for the first time. The absorption maxima of pyrazine-fused BOPYPY are obviously bathochromic… read more here.

Keywords: pyrrole; novel tetracyclic; pyrazine pyrrole; pyrrole fused ... See more keywords

A novel pyrrole fused coumarin based highly sensitive and selective fluorescence chemosensor for detection of Cu2+ ions and applications towards live cell imaging

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Published in 2018 at "Journal of Photochemistry and Photobiology A: Chemistry"

DOI: 10.1016/j.jphotochem.2018.07.004

Abstract: Abstract A novel pyrrole fused coumarin based simple and practicable molecular probe has been synthesized under metal free green conditions which can recognize copper (II) in acetonitrile solvent. The synthesized probe displayed fluorescence quenching through… read more here.

Keywords: coumarin based; fused coumarin; cu2; novel pyrrole ... See more keywords

Synthesis of a Highly Luminescent Pyrrole-Fused Dicorannulene as a Corrugated π-Extended Carbazole.

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Published in 2025 at "Organic letters"

DOI: 10.1021/acs.orglett.5c02652

Abstract: A pyrrole-fused dicorannulene was designed and synthesized via Pd-catalyzed reactions. This molecule can be regarded as a corrugated π-extended carbazole, which exhibited efficient blue fluorescence (ΦF = 0.56) in contrast to fairly nonemissive pristine corannulene.… read more here.

Keywords: corrugated extended; fused dicorannulene; extended carbazole; pyrrole fused ... See more keywords

Pyrrole-Fused Aza-Nanographene with Two Gulf-Edge Regions as Flexible Sites.

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Published in 2025 at "Organic letters"

DOI: 10.1021/acs.orglett.5c03278

Abstract: A fused octapyrrolylanthracene, representing a nonplanar pyrrole-fused aza-nanographene with two deep gulf-edge regions, was readily synthesized and found to exhibit a ladder-shaped bent structure. Electrochemical studies revealed reversible multielectron oxidation up to four electrons. Stepwise… read more here.

Keywords: nanographene two; fused aza; gulf edge; edge regions ... See more keywords

Comparative Evaluation of Pyrrole Fused Donor Moieties: 1H-Indole and Pyrrolo[2,3-b] Pyridine in Benzothiadiazole-Based D–A–D Type Conjugated Small Molecules for Organic Field-Effect Transistors

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Published in 2025 at "ACS Omega"

DOI: 10.1021/acsomega.4c11362

Abstract: Pyrrolic units have been utilized as building blocks for organic semiconducting small molecules and polymers in the recent past. Even though pyrrole-based materials have shown promising semiconducting properties, they have been challenging due to their… read more here.

Keywords: moieties indole; donor; pyrrolo pyridine; small molecules ... See more keywords

Organocatalyzed highly efficient synthesis of densely functionalized pyrrole-fused 1,4-dihydropyridine derivatives

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Published in 2019 at "Synthetic Communications"

DOI: 10.1080/00397911.2019.1647440

Abstract: Abstract An organo base catalyzed diverse pyrrole-fused 1,4-dihydropyridines were synthesized. This one-pot, three-component domino reaction of enamino imides, aromatic aldehydes, and malononitrile/ethyl cyanoacetate was achieved by 10 mol% of DMAP under refluxing ethanol. In addition, novel… read more here.

Keywords: organocatalyzed highly; pyrrole; dihydropyridine derivatives; fused dihydropyridine ... See more keywords

Synthesis of pyrrole-fused dibenzoxazepine/dibenzothiazepine/triazolobenzodiazepine derivatives via isocyanide-based multicomponent reactions

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Published in 2024 at "Beilstein Journal of Organic Chemistry"

DOI: 10.3762/bjoc.20.241

Abstract: An efficient and facile synthesis of pyrrole-fused dibenzoxazepine/dibenzothiazepine/triazolobenzodiazepine derivatives was developed through the isocyanide-based multicomponent reaction of isocyanides, gem-diactivated olefins, and cyclic imines such as dibenzoxazepine, dibenzothiazepine, and triazolobenzodiazepine under solvent- and catalyst-free conditions. Purposefully,… read more here.

Keywords: synthesis pyrrole; fused dibenzoxazepine; dibenzoxazepine dibenzothiazepine; dibenzothiazepine triazolobenzodiazepine ... See more keywords