Results 21 to 30 of about 12,878 (240)

Facile Synthesis of Functionalized Phenoxy Quinolines: Antibacterial Activities against ESBL Producing Escherichia coli and MRSA, Docking Studies, and Structural Features Determination through Computational Approach

open access: yesMolecules, 2022
The synthesis of new 6-Bromoquinolin-4-ol derivatives (3a–3h) by Chan–Lam coupling utilizing different types of solvents (protic, aprotic, and mixed solvents) and bases was studied in the present manuscript.
Mahwish Arshad   +4 more
doaj   +1 more source

Ultrafast Intramolecular Charge Transfer of Formyl Perylene Observed Using Femtosecond Transient Absorption Spectroscopy [PDF]

open access: yes, 2010
The excited-state photophysics of formylperylene (FPe) have been investigated in a series of nonpolar, polar aprotic, and polar protic solvents. A variety of experimental and theoretical methods were employed including femtosecond transient absorption (
Mohammed, Omar F.
core   +1 more source

The ammonolysis of esters in liquid ammonia [PDF]

open access: yes, 2013
The rates of ammonolysis of alkyl benzoate and phenylacetate esters in liquid ammonia increase with the acidity of the leaving group alcohol and show relatively large Brønsted βlg values of −1.18 and −1.34, respectively, when plotted against the aqueous ...
Atherton, John   +2 more
core   +1 more source

Reactions radicalaires dans des milieux protiques et aprotiques : comparaisons entre les cyclisations reductives electrochimiques catalysees par des complexes du nickel [PDF]

open access: yes, 2009
The electrochemical reductive cyclisation of unsaturated organic halides in the presence of Ni(II) complexes as catalysts was examined in aprotic solvents such as DMF and in protic solvents such as ethanol, butanol or ethanolewater mixtures.
Dunach, E.   +4 more
core   +1 more source

Solvent effects on photodegradation of CI Reactive Orange 16 by simulated solar light [PDF]

open access: yesHemijska Industrija, 2008
Organic solvents may appear in wastewaters and other industrial waste streams containing dyes, therefore, their photodegradation catalyzed by TiO2 should be investigated.
Mijin Dušan Ž.   +3 more
doaj   +1 more source

Thermal reversion of spirooxazine in ionic liquids containing the [NTf2]- anion [PDF]

open access: yes, 2009
We have compared the rate of thermal reversion of Spirooxazine (SO) from its merocyanine (MC) form within ionic liquids and molecular solvents. Et(30) and Kamlet-Taft parameter studies indicate ILs are comparable to polar protic and aprotic solvents. The
Angelini   +40 more
core   +1 more source

Theoretical Investigation of Solvation Effects on the Tautomerism of Maleic Hydrazide

open access: yesE-Journal of Chemistry, 2012
A DFT study is used to calculate structural data of tautomers of maleic hydrazide (MH) in the gas phase and selected solvents such as benzene (non-polar solvent), tetrahydrofuran (polar aprotic solvent) and methanol (protic solvent), dimethyl sulfoxide ...
Meisam Shabanian   +3 more
doaj   +1 more source

Investigation of solvent effects on electronic absorption spectra of some substituted 1,2,4-triazoline-3-thiones

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2010
The influence of the polarity of the solvent and hydrogen bonding on the electronic absorption spectra of some previously synthesized substituted 1,2,4-triazoline-3-thiones was studied.
Mirjana Jankulovska   +4 more
doaj   +1 more source

Nucleofugalities of neutral leaving groups in 80% aqueous acetonitrile [PDF]

open access: yes, 2016
Nucleofugalites of tetrahydrothiophene, dimethyl sulfide and differently substituted pyridines in 80 % aqueous acetonitrile have been derived from the SN1 solvolysis rate constants of the corresponding X,Y-substituted benzhydryl derivatives (1–10).
Jurić, Sandra   +2 more
core   +4 more sources

Activity coefficients for liquid organic reactions : towards a better understanding of true kinetics with the synthesis of jasmin aldehyde as showcase [PDF]

open access: yes, 2019
The aldol condensation of benzaldehyde and heptanal is taken as an example of reversible liquid phase organic reactions to show that inclusion of activity coefficients reveal distinct differences in conversion and product distribution when different ...
Heynderickx, Philippe
core   +1 more source

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