Results 101 to 110 of about 2,334 (173)

Advances in the Synthesis of Xanthenes: An Overview

open access: yes, 2018
Background: Xanthene is pharmacologically important oxygen containing heterocyclic moeity exhibiting an array of potent biological activities like antibacterial, antiviral, antiinflammatory, antitumor, antioxidant, antiplasmodial etc.
Jitender M. Khurana, Ankita Chaudhary
core   +1 more source

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

Triflat Catalyzed One-pot Synthesis of Benzo[b]xanthenes Derivatives

open access: yes, 2018
Xanthenes andbenzoxanthenes are an important class of biologically active compounds in thefield of drugs and pharmaceuticals, which possess antiviral, anti-inflammatory,anticancer, and antibacterial activities1.
Pektaş, Begüm, Turgut, Zühal
core  

Harnessing in vivo synthesis of bioactive multiarylmethanes in Escherichia coli via oxygen-mediated free radical reaction induced by simple phenols

open access: yesMicrobial Cell Factories
Background Xanthenes and multi-aryl carbon core containing compounds represent different types of complex and condensed architectures that have impressive wide range of pharmacological, industrial and synthetic applications. Moreover, indoles as building
Donglou Wang   +6 more
doaj   +1 more source

Cyclodextrin nanosponges: a potential catalyst and catalyst support for synthesis of xanthenes

open access: yes, 2017
The nanoporous framework of a cyclodextrin nanosponge was used as catalyst for accelerating the one-pot, three-component reaction of dimedone, aldehyde, and phenols for synthesis of xanthene derivatives.
Daraie, Mansoureh   +2 more
core   +1 more source

One-Pot Condensation Approach for the Synthesis of Some 1,8-Dioxo-octahydroxanthenes and 14-Aryl-14H-dibenzo[a,j]Xanthenes Using Lactic Acid as an Efficient and Eco-Friendly Catalyst

open access: yes, 2017
The synthesis of some biologically important xanthenes, by efficient and convenient approach for one-pot condensation reaction of aldehydes and dimedone or β-naphthol in the presence of lactic acid as an efficient, inexpensive and environmental ...
Mojtaba Lashkari   +4 more
core   +1 more source

Copper catalyzed coupling of protecting group free and sterically hindered 2-bromobenzyl tertiary alcohols with phenols and anilines: facile synthesis of xanthenes and dihydroacridines

open access: yes, 2016
A simple and efficient method for the synthesis of xanthenes and dihydroacridines containing a quaternary carbon atom at the 9th-position, is presented.
Lodi, M, G, Satyanarayana
core   +1 more source

Photophysical investigation of xanthenes for use in background suppression

open access: yes, 2020
Fluorescence imaging is an important tool in biological imaging applications. Even with the many advances in this field endogenous background remains a challenge.
Demissie, Aida
core   +1 more source

Solvent-free Synthesis of 5H-dibenzo[b,i]xanthene-tetraones and Aryl-14Hdibenzo[a,j]xanthenes Using Ferric Chloride Hexahydrate as Catalyst

open access: yes, 2017
A simple and convenient procedure for the synthesis of 5Hdibenzo[<em>b,i</em>]xanthene-tetraones and aryl-14<em>H</em>-dibenzo[<em>a,j</em>]xanthenes is described through the condensation of aldehydes with 2-naphthol ...
Dongmei Xu   +4 more
core   +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  

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