Results 21 to 30 of about 56,095 (275)

Spectral correlation, antimicrobial and insect antifeedant activities of some 1-naphthyl keto-oxiranes

open access: yesJournal of Saudi Chemical Society, 2014
Thirteen optically active (αS,βR) 1-naphthyl keto-oxiranes (1-naphthyl-4-yl[3-(substituted phenyl)oxiran-2-yl]methanones) have been synthesised by phase transfer catalysed epoxidation of 1-naphthyl chalcones. The yields of oxiranes are more than 95%. The
G. Thirunarayanan
doaj   +1 more source

Mechanism of C−F Reductive Elimination from Palladium(IV) Fluorides [PDF]

open access: yes, 2010
The first systematic mechanism study of C−F reductive elimination from a transition metal complex is described. C−F bond formation from three different Pd(IV) fluoride complexes was mechanistically evaluated.
Benitez, Diego   +6 more
core   +2 more sources

Reactivity of plasmalogens: kinetics of acid-catalyzed hydrolysis

open access: yesJournal of Lipid Research, 1969
The acid-catalyzed hydrolysis of the α,β-unsaturated ether group of two plasmalogens, lysophosphatidal choline and lysophosphatidal ethanolamine, and several model compounds (isobutyl vinyl ether, 1-butenyl ethyl ether, and dihydropyran) was studied by ...
Michael F. Frosolono, Maurice M. Rapport
doaj   +1 more source

Conformational Preferences of 3-(Dimethylazinoyl)propanoic Acid as a Function of pH and Solvent; Intermolecular versus Intramolecular Hydrogen Bonding [PDF]

open access: yes, 2009
The conformational equilibrium of 3-(dimethylazinoyl)propanoic acid (DMAPA, azinoyl = N^+(O^−) has a weak pH-dependence in D_2O, with a slight preference for trans in alkaline solutions.
Alley, Olivia J.   +5 more
core   +2 more sources

Evaluation of biodegradation kinetic constants for aromatic compounds by means of aerobic batch experiments [PDF]

open access: yes, 2006
Kinetics of aerobic biodegradation have been investigated for twenty aromatic species using sludges collected from the aeration basin of municipal sewage treatment plants. The reproducibility of the results is tested with respect to the sludges period of
ANDREOZZI, ROBERTO   +3 more
core   +1 more source

Comparison of stabilization by Vitamin E and 2,6-di-tert-butylphenols during polyethylene radio-thermal-oxidation [PDF]

open access: yes, 2014
This paper reports a compilation of data for PE+Vitamin E and 2,6-di-tert-butylphenols oxidation in radio-thermal ageing. Data unambiguously show that Vitamin E reacts with P° and POO° whereas 2,6-di-tert-butyl phenols only react with POO°.
RICHAUD, Emmanuel
core   +6 more sources

Substituted 2-Phenacylbenzoxazole Difluoroboranes: Synthesis, Structure and Properties

open access: yesMolecules, 2020
Novel fluorescent dyes such as benzoxazole-boron complexes, bearing β-ketoiminate ligands, have been synthesized and characterized with a focus on the influence of a substituent on the basic photophysical properties.
Agnieszka Skotnicka, Przemysław Czeleń
doaj   +1 more source

Naphthalene vs. Benzene as a Transmitting Moiety: Towards the More Sensitive Trifluoromethylated Molecular Probes for the Substituent Effects

open access: yesMolecules, 2022
The application of DFT computational method (B3LYP/6-311++G(d,p)) to mono- and poly(CF3)substituted naphthalene derivatives helps to study changes in the electronic properties of these compounds under the influence of 11 substituents (-Br, -CF3, -CH3 ...
Adam Sokół   +3 more
doaj   +1 more source

Solvent free synthesis, spectral correlation and antimicrobial activities of some 2E 4′-nitrochalcones

open access: yesJournal of Saudi Chemical Society, 2016
A series containing twelve substituted styryl 4′-nitrophenyl ketones have been synthesized using solvent free SiO2–H2SO4 catalysed aldol reaction under microwave condition. The yield of chalcones is found to be more than 80%.
Renganathan Arulkumaran   +8 more
doaj   +1 more source

Mechanisms of base selection by human single-stranded selective monofunctional uracil-DNA glycosylase [PDF]

open access: yes, 2009
hSMUG1 (human single-stranded selective monofunctional uracil-DNA glyscosylase) is one of three glycosylases encoded within a small region of human chromosome 12. Those three glycosylases, UNG (uracil-DNA glycosylase), TDG (thymine-DNA glyscosylase), and
Agus Darwanto   +63 more
core   +3 more sources

Home - About - Disclaimer - Privacy