Results 21 to 30 of about 3,669 (219)
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 +6 more
doaj +1 more source
Bulletin of the Chemical Society of Japan, 1984 Abstract The ozonation of xanthene was studied using an oxygen stream. Ozone attacks the methylene group of xanthene via a 1,3-dipolar insertion reaction to give the hydrotrioxide intermediate, followed by a loss of singlet oxygen to form xanthydrol.
Masaki Matsui +3 more
openaire +1 more source
Methyl 9H-xanthene-9-carboxylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title compound, C(15)H(12)O(3), was obtained unintentionally as the by-product of an attempted recrystallization from methanol of propantheline bromide, an anti-muscarinic drug. The xanthone unit is folded, with a dihedral angle of 24.81 (9)° between the benzene rings.
Douglas R. MacFarlane +2 more
openaire +3 more sources
Molecules, 2012 Polyethyleneglycol bound sulfonic acid (PEG-OSO<sub>3</sub>H), 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 +5 more
doaj +1 more source
Ultrasound assisted synthesis of tetrahydrobenzocxanthene-11-ones using CAN as catalyst [PDF]
, 2012 Tetrahydrobenzocxanthenes-11-ones was synthesized by a three component reaction of α-naphthol, aromatic aldehyde and dimedone. Ceric ammonium nitrate acts as a suitable eco-friendly catalyst for this method.
Pasha, M.A., Sudha, S.
core +2 more sources
Microwave-assisted embedding of bis-vanillin and bis-eugenol into SBA-15: Synthesis of chemosensors precursors for the detection of metal cations [PDF]
, 2017 In this work we evaluate the necessary experimental conditions to carry out the embedding of bis-vanillin and bis-eugenol, two potential precursors of chemosensors, in the porous structure of the mesoporous silica SBA-15 through a microwave assisted ...
Espinoza Martinez, Dailenys +4 more
core +1 more source
A Convenient Preparation of Xanthene Dyes. [PDF]
ChemInform, 2005 AbstractFor Abstract see ChemInform Abstract in Full Text.
Youjun, Yang +8 more
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Divergent synthesis of fused Benzo-xanthene and oxazine derivatives via Cu-catalyst
Journal of Saudi Chemical Society, 2022 Cu-Cu2O combination showed synergic effects in catalyzing intramolecular Ullmann coupling reaction for halo-Betti bases to afford fused benzo-xanthenes from both electron-rich and electron-deficient aromatic systems in good yield under mild reaction ...
Meshari A Alsharif +6 more
doaj +1 more source
Donor–Acceptor Pentacene Analogues With Near‐Infrared Emission and Tunable Aromaticity
Angewandte Chemie, EarlyView.Air‐ and photostable heterocyclic pentacene analogues with donor and acceptor groups flanking a para‐quinodimethane core exhibit large dipole moments, narrow bandgaps, reversible redox behavior, and NIR‐I to NIR‐II absorption and emission with pronounced solvatochromism.
Krzysztof Nowak +6 more
wiley +2 more sources
New Records of Stoneflies (Plecoptera) With an Annotated Checklist of the Species for Pennsylvania [PDF]
, 2017 Original collections now record 134 species in nine families and 42 gen- era. Seventeen new state records include, Allocapnia wrayi, Alloperla caudata, Leuctra maria, Soyedina carolinensis, Tallaperla elisa, Perlesta decipiens, P.
Masteller, E. C
core +3 more sources