Results 71 to 80 of about 1,749 (157)

Spirolactones of xanthene. IV New method of xanthone synthesis by oxidation of novel spirolactones of dibenzo[c,h]xanthene and xanthenes.

open access: yesChemical and Pharmaceutical Bulletin, 1987
Dibenzo [c, h] xanthone and halogen-and methyl-substituted xanthones have been synthesized by the oxidation of novel spirolactones of dibenzo [c, h] xanthene and xanthene, which were prepared by a new condensation reaction of 1-naphthol or phenol derivatives with oxalic acid in the presence of sulfuric acid.
MICHIO KIMURA, ICHIZO OKABAYASHI
openaire   +2 more sources

The interaction and photostability of some xanthenes and selected azo sensitizing dyes with TiO2 nanoparticles

open access: yesInternational Journal of Photoenergy, 2005
We have tested simple Graetzel-type solar cells using semiconductor thin films consisting of TiO2 nanoparticles and some electron injecting dyes. The possibility of using xanthenes (rhodamine 101, fluorescein and 5(6)-carboxyfluorescein) and selected azo
D. EL Mekkawi, M. S. A. Abdel-Mottaleb
doaj   +1 more source

Interactions of Different Streptomyces Species and Myxococcus xanthus Affect Myxococcus Development and Induce the Production of DK-Xanthenes. [PDF]

open access: yesInt J Mol Sci, 2023
Santamaría RI   +6 more
europepmc   +1 more source

Evaluación del efecto de la aminofilina en recuperación de conciencia y disminución de agitación postoperatoria

open access: yesRevista Ciencias Biomédicas, 2013
Introduction: After the surgery, the anesthesiologist seeks to recover the consciousness of the patient nimbly and with the minor quantity of side effects, especially without psychomotor agitation.
Murillo-Deluquez Marcelino   +3 more
doaj  

Synthesis of new xanthene derivatives

open access: yes, 2013
Xanthene dyes, including fluorescein, are a well-known class of fluorescent dyes, which have widespread applications in natural sciences. The synthesis of xanthene derivatives via acid catalyzed condensation of substituted phenols with phthalic anhydride, to afford the asymmetric derivatives, is well established.
openaire   +2 more sources

Graphene Oxide-Enamino-Xanthene Charge-Transfer Hybrids as High-Performance Sensitizing Interfaces for TiO<sub>2</sub> Photoanodes. [PDF]

open access: yesACS Appl Mater Interfaces
Martínez-Barón C   +8 more
europepmc   +1 more source

Evaluation of the Cytotoxic and Antiviral Effects of Small Molecules Selected by In Silico Studies as Inhibitors of SARS-CoV-2 Cell Entry. [PDF]

open access: yesMolecules, 2023
Carvalhal F   +11 more
europepmc   +1 more source

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