Results 11 to 20 of about 1,812 (181)

ChCl: Gly (DESs) Promote Environmentally Benign Synthesis of Xanthene Derivatives and Their Antitubercular Activity

Molecules, 2021
A ChCl: Gly (DESs) promoted environmentally benign method was developed for the first time using the reaction of aryl aldehydes and dimedone to give excellent yields of xanthene analogues.
Mashooq A. Bhat, Ahmed M. Naglah, Siddique Akber Ansari, Hanaa M. Al-Tuwajiria, Abdullah Al-Dhfyan   +4 more
doaj   +1 more source

The Dual Synergy of Photodynamic and Sonodynamic Therapy in the Eradication of Methicillin-Resistant Staphylococcus aureus

Applied Sciences, 2023
Recently, the combined application of synergistic therapies for photodynamic antimicrobial chemotherapy has become important to obtain more efficient results.
Daniel Ziental, Marcin Wysocki, Maciej Michalak, Jolanta Dlugaszewska, Emre Güzel, Lukasz Sobotta   +5 more
doaj   +1 more source

Synthesis of Cyano-Benzylidene Xanthene Synthons Using a Diprotic Brønsted Acid Catalyst, and Their Application as Efficient Inhibitors of Aluminum Corrosion in Alkaline Solutions

Molecules, 2022
Novel cyano-benzylidene xanthene derivatives were synthesized using one-pot and condensation reactions. A diprotic Brønsted acid (i.e., oxalic acid) was used as an effective catalyst for the promotion of the synthesis process of the new starting xanthene–
Mohammed A. Amin, Gaber A. M. Mersal, Morad M. El-Hendawy, Abdallah A. Shaltout, Ali Badawi, Johan Boman, Adil A. Gobouri, Murat Saracoglu, Fatma Kandemirli, Rabah Boukherroub, Jacek Ryl, Mohamed E. Khalifa   +11 more
doaj   +1 more source

Fe3o4 nanoparticles: A highly efficient and easily reusable catalyst for the one-pot synthesis of xanthene derivatives under solvent-free conditions [PDF]

Journal of the Serbian Chemical Society, 2013
Magnetically separable Fe3O4 nanoparticles supply environmentally friendly procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and 1,8-dioxo-octahydro-xanthene derivatives.
Ghasemzadeh Ali Mohammad, Safaei-Ghomi Javad, Zahedi Safura   +2 more
doaj   +1 more source

Nano-Silica Phosphoric Acid: An Efficient Catalyst for One-Pot Synthesis of Tetrahydrobenzo[a]xanthenes-11-one Under Solvent- Free or Sonication Conditions [PDF]

Journal of Nanostructures, 2012
Two simple protocols for the synthesis of tetrahydrobenzo[a]xanthenes-11-ones using nano silica phosphoric acid are reported. Short reaction times, high yields, reusability of catalyst and easy workup are some advantages of these protocols.
A. Bamoniri, S. Nazemian, B. F. Mirjalili   +2 more
doaj   +1 more source

Synthesis of Xanthones, Thioxanthones and Acridones by a Metal-Free Photocatalytic Oxidation Using Visible Light and Molecular Oxygen

Molecules, 2021
9H-Xanthenes, 9H-thioxanthenes and 9,10-dihydroacridines can be easily oxidized to the corresponding xanthones, thioxanthones and acridones, respectively, by a simple photo-oxidation procedure carried out using molecular oxygen as oxidant under the ...
Alejandro Torregrosa-Chinillach, Rafael Chinchilla   +1 more
doaj   +1 more source

Visible light-promoted metal-free aerobic photooxidation of xanthenes, thioxanthenes and dihydroacridines in deep eutectic solvents

Tetrahedron Green Chem, 2023
Benzylic systems such as 9H-xanthenes, 9H-thioxanthenes and 9,10-dihydroacridines can be easily oxidized to the corresponding xanthones, thioxanthones or acridones, respectively, in deep eutectic solvents by a visible blue light-promoted photooxidation ...
Sarah-Jayne Burlingham, Alejandro Torregrosa-Chinillach, Diego A. Alonso, Rafael Chinchilla   +3 more
doaj   +1 more source

A Convenient Preparation of Xanthene Dyes. [PDF]

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Youjun, Yang, Jorge O, Escobedo, Alexander, Wong, Corin M, Schowalter, Michael C, Touchy, Lijuan, Jiao, William E, Crowe, Frank R, Fronczek, Robert M, Strongin   +8 more
openaire   +2 more sources

An Insight Into the Potentiation Effect of Potassium Iodide on aPDT Efficacy

Frontiers in Microbiology, 2018
Antimicrobial photodynamic therapy (aPDT) is gaining a special importance as an effective approach against multidrug-resistant strains responsible of fatal infections. The addition of potassium iodide (KI), a non-toxic salt, is recognized to increase the
Cátia Vieira, Ana T. P. C. Gomes, Mariana Q. Mesquita, Nuno M. M. Moura, M. Graça P. M. S. Neves, M. Amparo F. Faustino, Adelaide Almeida   +6 more
doaj   +1 more source

Design, Synthesis and Antiviral Potential of 14-Aryl/Heteroaryl-14<em>H</em>-dibenzo<em>[a,j]</em>xanthenes Using an Efficient Polymer-Supported Catalyst

Molecules, 2012
Polyethyleneglycol bound sulfonic acid (PEG-OSO₃H), a chlorosulphonic acid-modified polyethylene glycol was successfully used as an efficient and eco-friendly polymeric catalyst in the synthesis of 14-aryl/heteroaryl-14<em>H ...
Ola Lasekan, Mungara Anil Kumar, Palanisamy Arulselvan, Shaik Ibrahim Khalivulla, Balam Satheesh Krishna, Kalla Reddi Mohan Naidu   +5 more
doaj   +1 more source