Results 41 to 50 of about 51,441 (193)

Synthesis, characterization and antimicrobial activity of fluoro-containing aroylhydrazones

open access: yesActa Chimica Slovenica
2-Fluorobenzohydrazide reacted with various benzaldehydes afforded five new aroylhydrazones, which were characterized by elemental analysis, IR, UV-Vis and 1H NMR spectroscopy.
Lei Shi   +4 more
doaj   +1 more source

New Conjugated Benzothiazole-N-oxides: Synthesis and Biological Activity

open access: yesMolecules, 2009
Eleven new 2-styrylbenzothiazole-N-oxides have been prepared by aldol – type condensation reactions between 2-methylbenzothiazole–N-oxide and para-substituted benzaldehydes.
Pavlína Foltínová   +3 more
doaj   +1 more source

Synthesis of Some Aryl Chalcones Using Silica-Sulphuric Acid Reagent under Solvent Free Conditions

open access: yesE-Journal of Chemistry, 2007
There are two series of α, β-unsaturated ketones derived form Biphenyl and 9H-Fluorenyl, and ketones with various substituted benzaldehydes under solvent free conditions using silica-sulphuric acid as a reagent in an oven. The catalyst silica is reusable
G. Thirunarayanan, G. Vanangamudi
doaj   +1 more source

Salivary Aldehyde Dehydrogenase: Activity towards Aromatic Aldehydes and Comparison with Recombinant ALDH3A1

open access: yesMolecules, 2009
A series of aromatic aldehydes was examined as substrates for salivary aldehyde dehydrogenase (sALDH) and the recombinant ALDH3A1. Para-substituted benzaldehydes, cinnamic aldehyde and 2-naphthaldehydes were found to be excellent substrates, and kinetic ...
Jacek Wierzchowski   +5 more
doaj   +1 more source

Oxidation of benzaldehyde in some multiphase betaine-benzaldehyde-water systems

open access: yesJournal of Pharmacy and Pharmacology, 1964
Abstract The results of oxidation studies in ternary multiphase betaine-benzaldehyde-water systems show that the maximum rate of oxidation depends primarily on the benzaldehyde content and composition of the phase with the shortest induction period in the system under examination.
J, SWARBRICK, J E, CARLESS
openaire   +2 more sources

Synthesis of Schiff Bases via Environmentally Benign and Energy-Efficient Greener Methodologies

open access: yesE-Journal of Chemistry, 2009
Non classical methods (water based reaction, microwave and grindstone chemistry) were used for the preparation of Schiff bases from 3-chloro-4-fluoro aniline and several benzaldehydes. The key raw materials were allowed to react in water, under microwave
Arshi Naqvi   +4 more
doaj   +1 more source

Oxidation of benzaldehyde in some single phase betaine-benzaldehyde-water systems

open access: yesJournal of Pharmacy and Pharmacology, 1964
AbstractThe oxidation rates of increasing concentrations of benzaldehyde in ternary systems of the L1 type have been measured in aqueous solutions of four betaine homologues. On applying corrections for extra-micellar material, the rate becomes independent of the betaine concentration and is related to the micellar ratio of benzaldehyde to betaine when
J, SWARBRICK, J E, CARLESS
openaire   +2 more sources

Microwave-Assisted Synthesis of Some 3,5-Arylated 2-Pyrazolines

open access: yesMolecules, 2003
Condensation of 2-acetylnaphthalene with benzaldehydes under microwave irradiation affords chalcones which undergo facile and clean cyclizations with hydrazines RNHNH2 (R= H, Ph, Ac) to afford 3,5-arylated 2-pyrazolines in quantitative yields, also under
Hassan Ghasemnejad, Davood Azarifar
doaj   +1 more source

Home - About - Disclaimer - Privacy