Results 91 to 100 of about 5,075 (257)

Synthesis and characterization of novel binuclear task-specific ionic liquid: an efficient and sustainable sulfonic-functionalized ionic liquid for one-pot synthesis of xanthenes

open access: yes, 2018
A new binuclear sulfonic-functionalized ionic liquid was synthesized in two steps and its dual solvent-catalytic activity was studied for the synthesis of a variety of xanthenes under mild conditions.
Khaligh, Nader Ghaffari
core   +1 more source

Comparison among Different pH Values of Rhodamine B Solution Impregnated into Mesoporous Silica

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
We studied the behavior of different pH values of Rhodamine B solution impregnated into pores of mesoporous silica, through structural characterization techniques, such as scanning electron microscopy and porosity measurements, and spectroscopic ...
Juliana Jorge   +2 more
doaj   +1 more source

Friedel-Crafts acetylation and benzoylation of benzylsilanes and xanthenes

open access: yes, 2002
The synthesis of p-acetyl and p-benzoyl derivatives of various benzylsilanes (p-(RCO)-C-1-C6H4-(CRR3)-R-2-SiMe3: R-1, R-2, R-3=Me, H, H; Me, H, Ph; Me, H, Me; Me, Me, Me; Ph, H, H; Ph, H, Ph; Ph, H, Me; Ph, Me, Me), xanthenes (3-benzoyl and 3,6-dibenzoyl)
Triantafyllou, A. S.   +4 more
core  

Structure- and Property-Based Design of Aminooxazoline Xanthenes as Selective, Orally Efficacious, and CNS Penetrable BACE Inhibitors for the Treatment of Alzheimer’s Disease

open access: yes, 2016
A structure- and property-based drug design approach was employed to identify aminooxazoline xanthenes as potent and selective human β-secretase inhibitors.
Russell Graceffa (2025667)   +16 more
core   +1 more source

Green catalytic synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes using recyclable mesoporous zirconia modified with tungstophosphoric acid [PDF]

open access: yes, 2019
A simple and efficient procedure has been developed for the preparation of aryl-14H-dibenzo[a,j]xanthenes by a one-pot condensation of 2-naphthol and aryl aldehydes, in the presence of mesoporous zirconia modified with tungstophosphoric acid ...
Blanco, Mirta Noemí   +3 more
core  

1,4-Dichloro-1,4-diazoniabicyclo[2,2,2]octane bis chloride a new and efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes in water as solvent

open access: yes, 2014
Babol University of Technology, Babol, Iran E-mail : habibzadeh@nit.ac.ir Fax : 98-111-3234203 Manuscript received online 16 August 2013, revised 03 February 2014, accepted 24 February 2014 A new and green procedure for the synthesis of 14-aryl-14H ...
Setareh Habibzadeh
core   +1 more source

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

open access: yes, 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
Abdel-Mottaleb, M. S. A.   +3 more
core   +1 more source

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