Asymmetric Donor–Acceptor 2,7-Disubstituted Fluorenes and Their 9-Diazoderivatives: Synthesis, Optical Spectra and Photolysis [PDF]
MoleculesIn a search for dyes photoactivatable with visible light, fluorenes with substituents at positions 2 and 7 were prepared, and their absorption and emission spectra were studied.
Andrei I. Savchenko +3 more
doaj +2 more sources
Synthesis of New Enantiopure Aminoalcohol Fluorenes as Promising Antimalarial Compounds. [PDF]
ChemMedChemInternational audienceHerein, we report the design, synthesis, and characterisation of a new library of enantiopure aminoalcohol fluorenes, as well as their in vitro evaluation for biological properties, including activity against two strains of P ...
Tisnerat C +11 more
europepmc +2 more sources
ChemistryOpen, 2023 New Azacycles by One‐Pot Three‐Component Hantzsch‐Like Synthesis of Tetra(hexa)azacyclopenta[a]anthracenes, Tetraazaindeno[5,4‐b]fluorenes, and Oxatetraazacyclopenta[m]tetraphenes (H. Butenschön, I. A.
Amr M Abdelmoniem +2 more
exaly +2 more sources
Palladium-Catalysed Coupling and Acid-Mediated Cyclisation: Synthesis of Fluorenones and Fluorenes
SynOpen, 2018 Palladium-catalysed sequential one-pot synthesis of fluorenones is described. The reaction comprises intermolecular Suzuki coupling and intramolecular acid-mediated cyclisation in a one-pot procedure.
Devarapalli Ravi Kumar +2 more
doaj +2 more sources
Polycyclic aromatic hydrocarbon (PAH) source identification and a maternal transfer case study in threatened killer whales (Orcinus orca) of British Columbia, Canada [PDF]
Scientific Reports, 2023 The northeastern Pacific (NEP) Ocean spans the coast of British Columbia (Canada) and is impacted by anthropogenic activities including oil pipeline developments, maritime fossil fuel tanker traffic, industrial chemical effluents, agricultural and urban ...
Kiah Lee +6 more
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Differential degradation of petroleum hydrocarbons by Shewanella putrefaciens under aerobic and anaerobic conditions [PDF]
Frontiers in MicrobiologyThe complexity of crude oil composition, combined with the fluctuating oxygen level in contaminated environments, poses challenges for the bioremediation of oil pollutants, because of compound-specific microbial degradation of petroleum hydrocarbons ...
Yang Li +6 more
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Liquid crystalline organic semiconductors: nematic spiro[cyclopentyl-1,9′]fluorenes
Liquid Crystals, 2011 A number of nematic spiro[cyclopentyl-1,9′]fluorene reactive mesogens with polymerisable oxetane or non-conjugated diene end-groups have been successfully synthesised. The melting and clearing points of these new spiro[cyclopentyl-1,9′]fluorenes are much
Marta Haro +2 more
exaly +2 more sources
Functionalization of azafullerene C59N. Radical reactions with 9-substituted fluorenes
Tetrahedron Letters, 2003 An efficient reaction between the azafullerene dimer, (C 59N)2 and 9-substituted fluorenes leads to the formation of four new azafullerene monoadducts.
Georgios C Vougioukalakis +1 more
exaly +1 more source
Helical Dispiroindeno[2,1-c]fluorenes Possessing Planar Chirality: Synthesis and Chiroptical Properties. [PDF]
J Org ChemInternational audienceSyntheses of enantioenriched helical dispiroindeno[2,1-c]fluorenes (DSIF) possessing one or two pCp moieties are presented. These are based on the conversion of (S(p))- and (R(p)) pCp-carbaldehydes 1 to triynediols 2 and 6 that were
Bogomolec M +7 more
europepmc +2 more sources
Skeletal Editing of Dibenzolactones to Fluorenes via Ni- or Pd-Catalyzed Decarboxylation. [PDF]
J Org Chem, 2023 The skeletal editing of dibenzolactones to fluorenes by Ni- or Pd-catalyzed decarboxylation is reported. In contrast to previously reported intramolecular decarboxylative couplings, inductively electron-withdrawing ortho substituents on the aryl ...
Chen LY, Li J.
europepmc +2 more sources