Results 71 to 80 of about 7,454 (221)

Bi- and trimetallic complexes with macrocyclic xanthene-4,5-diNHC ligands

open access: yes, 2022
Three different types of bimetallic NHC-metal complexes were synthesized, whose NHC units are attached at the 4,5-positions of xanthene. The NHC units are in close proximity and are designed such that each carbene coordinates one ML unit, while the ...
Foro, Sabine   +2 more
core   +1 more source

Novel β-cyclodextrin–eosin conjugates

open access: yesBeilstein Journal of Organic Chemistry, 2017
Eosin B (EoB) and eosin Y (EoY), two xanthene dye derivatives with photosensitizing ability were prepared in high purity through an improved synthetic route.
Gábor Benkovics   +8 more
doaj   +1 more source

12-(3,4,5-Trimethoxyphenyl)-2,3,4,12-tetrahydro-1H-5-oxatetraphen-1-one: crystal structure and Hirshfeld surface analysis

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C26H24O5, the pyran ring has a flattened-boat conformation, with the 1,4-related ether O and methine C atoms lying 0.1205 (18) and 0.271 (2) Å, respectively, above the least-squares plane involving the doubly bonded C atoms (r.m.s ...
Mukesh M. Jotani   +5 more
doaj   +1 more source

Effects of Biotin on a Fluorescein‐Based Photosensitizer Revealed by Multiscale Computational Modeling

open access: yesChemistry – A European Journal, EarlyView.
Biotinylation of a fluorescein‐based photosensitizer enhances its performance in PDT through a synergistic dual action. In addition to Type II singlet oxygen generation common to both dyes, the biotinylated system induces stronger membrane perturbation and higher local accumulation in lipid membranes, associated with increased water permeability and ...
Valeria Butera   +4 more
wiley   +1 more source

1,4-diazanium-bicyclo[2.2.2]octane diacetate: As an effective, new and reusable media for the synthesis of 14-aryl-14H-dibenzo [a,j]xanthenes

open access: yesActa Chimica Slovenica, 2016
A general synthetic route to dibenzoxanthenes has been developed using 1,4-diazanium-bicyclo[2.2.2]octane diacetate as a new bis ionic liquid under thermal and solvent free condition.
Leila Zare Fekri, Hajar Saeedi Fard
doaj   +1 more source

Control of Gemcitabine Activity With Blue and Red Light

open access: yesChemistry – A European Journal, EarlyView.
Treating cancer with chemotherapy is generally associated with many side effects, which can be addressed by selectively releasing the desired drugs with visible light. Sixteen new blue light‐activatable cytostatics were introduced, with the gemcitabine derivative exhibiting ideal properties.
Nils F. Kersten   +6 more
wiley   +1 more source

RhodaMal Dyes: Novel Red Emissive Fluorophores as Probes for High Contrast Live‐Cell Imaging

open access: yesChemistry – A European Journal, EarlyView.
Incorporation of malononitrile into the traditional rhodol framework furnishes RhodaMal (Rhoda = Rhodamine, Mal = Malononitrile;) dyes, a new class of red emissive push–pull chromophores. Conjugating them to triphenylphosphonium cation enables live cell super‐resolution STED microscopy with a 775 nm depletion laser.
A. Mavroskoufis   +8 more
wiley   +1 more source

Synthesis and Reduction of Super‐Bulky Bis(anilido)acridanide Aluminium Complexes

open access: yesChemistry – A European Journal, EarlyView.
A new generation of super‐bulky bis(anilido)acridanide ligands has been developed and used in the preparation of aluminium(III) complexes. ABSTRACT Super‐bulky bis(anilido)acridanide pro‐ligands (NNNAr)H3 (NNNAr = 4,5‐bis(anilido)‐2,7,9,9‐tetramethylacridanide, anilido = NAr, Ar = DCHP, 2,6‐dicyclohexylphenyl; TCHP, 2,4,6‐tricyclohexylphenyl) have been
Matthew J. Evans   +2 more
wiley   +1 more source

DataSheet1_Continuous flow catalysis with CuBTC improves reaction time for synthesis of xanthene derivatives.PDF

open access: yes, 2023
The copper-based metal-organic framework (MOF) CuBTC (where H3BTC = benzene-1,3,5-tricarboxylate) has been shown to be an efficient heterogeneous catalyst for the generation of 1,8-dioxo-octa-hydro xanthene derivatives, which are valuable synthetic ...
Jonathan E. Thai (11884141)   +2 more
core   +1 more source

Xanthene‐Based FLPs Featuring Perchloroarylborane Substitutents: Interplay of Noncovalent Aggregation and Dihydrogen Activation

open access: yesChemistry – A European Journal, EarlyView.
Frustrated Lewis Pairs featuring perchloroarylborane Lewis acid groups are found to display unprecedented H2 uptake as a function of temperature, resulting from the thermodynamic balance between H─H cleavage and noncovalent intermolecular aggregation.
Aisling F. Roper   +3 more
wiley   +1 more source

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