Results 91 to 100 of about 57,050 (287)
One-pot preparation of substituted pyrroles from α-diazocarbonyl compounds
Beilstein Journal of Organic Chemistry, 2008 In this work an efficient one-pot synthesis of substituted pyrroles 7a–n is described, which involves the in situ formation of dihydrofurans ethyl 5-butoxy-2-methyl-4,5-dihydrofuran-3-carboxylate (4), 1-(5-butoxy-2-methyl-4,5-dihydrofuran-3-yl)ethanone ...
Fernando de C. da Silva +5 more
doaj +1 more source
, 2019 We report herein the development of two efficient synthetic routes for the preparation of a key fragment required for the synthesis of potent drug candidates of Hepatitis B virus. The ethyl 3-fluoro-1-H-pyrrole-2-carboxylate scaffold was synthesized from
Yang Cheng (125394) +23 more
core +1 more source
Advanced Science, EarlyView.Umbilical cord stem cell‐derived exosomes encapsulated in an immunomodulatory bioadhesive hydrogel spray enable localized therapy, sustained vesicle delivery, macrophage polarization, suppress systemic inflammation, and mitigate glucose and insulin homeostasis impairments in MAFLD.
Triya Saha +4 more
wiley +1 more source
Advanced Science, EarlyView.A novel multiscale MD/DFT framework to elucidate microenzyme adsorption and electron transfer is reported. This method reveals distinct configurations for microperoxidase‐11 on graphene and those best suited for electron transfer. Rate constants align with the limited experimental data, establishing this framework as a tool for optimizing microenzyme ...
Milan Mijajlovic +6 more
wiley +1 more source
Intermolecular (pyrrole)N-H...π(pyrrole) interactions in bis(2-pyrrolyl)methylferrocene, an organometallic porphyrin precursor [PDF]
, 1999 The title compound, C₁₉H₁₈FeN₂ or [Fe(C₅H₅)(C₁₄H₁₃- N₂)], crystallizes in space group P2₁ln with two molecules in the asymmetric unit. The pyrrole groups take part in intermolecular (pyrrole)N--H...π(pyrrole) interactions through a hydrogen-bonded ...
Gallagher, John F., Moriarty, Elena
core +2 more sources
Advanced Science, EarlyView.Dual‐state activation of singlet and triplet excitons is achieved in perylene‐based nanomicelles via donor engineering. By synergistically pairing charge transfer with energy transfer pathways, while concurrently enabling pollutant pre‐enrichment, this strategy establishes spatial coupling between efficient ROS generation and rapid mineralization ...
Chenfan Xie +8 more
wiley +1 more source
The Preparatory (Anti)Bonding Character of Molecular Orbitals
Advanced Science, EarlyView.Herein, a concept to qualitatively predict changes in bond dissociation energies upon reduction or oxidation of molecular compounds is introduced. Changing the population of so‐called preparatory molecular orbitals influences how molecular fragments are relaxing after bond cleavage, which is shown for isolated organometallic aluminum compounds as well ...
Jonas O. Wenzel +10 more
wiley +1 more source
5,5′-(1-Phenylethane-1,1-diyl)bis(1H-pyrrole-2-carboxaldehyde)
IUCrData, 2019 In the title compound, C18H16N2O2, the dihedral angle between the pyrrole rings is 79.47 (9)°, with the N—H groups approximately orthogonal (H—N...N—H pseudo torsion angle = −106°).
Shiva Krishna Loke +2 more
doaj +1 more source
Pyrrole chemistry and the synthesis of some pyrrole thiolesters [PDF]
, 1965 The biogenisis of porphyrins and the problems involved in the chemical synthesis of porphyrins and their biogenetic intermediates are briefly discussed.
Loader, Charles Edward
core +1 more source
Advanced Science, EarlyView.A supramolecular pyroptotic thermal switch encapsulates I3− within β‐cyclodextrin (β‐CD) and undergoes CaCO3 mineralization. Upon lysosomal acidification, CaCO3 is degraded, releasing Ca2+ and I3−. Concurrently, BODIPY activation converts I3− into I2, inducing oxidative stress and Ca2+ overload, which together trigger caspase‐3/GSDME‐mediated ...
Dan Wu +8 more
wiley +1 more source