Results 51 to 60 of about 6,596 (245)

Studies on the chemical control of psychrophilic bacterial spoilage of fish. 4 - The effect of chemical preservatives on the growth of psychrophilic bacteria isolated from marine fish [PDF]

open access: yes, 1981
Dehydroacetic acid and ammonia were found to be very effective in checking the growth of all the cultures at all concentrations tried. The two nitrofuran derivatives namely, semicarbazone and AF-2 were fairly effective, semicarbazone being more effective
Anand, C.P., Rudra Setty, T.M.
core  

Antimicrobial activity, synergism and inhibition of germ tube formation by Crocus sativus-derived compounds against Candida spp [PDF]

open access: yes, 2016
The limited arsenal of synthetic antifungal agents and the emergence of resistant Candida strains have prompted the researchers towards the investigation of naturally occurring compounds or their semisynthetic derivatives in order to propose new ...
ANGIOLELLA, Letizia   +4 more
core   +2 more sources

Recommended dosage and environmental risk assessment of insecticides registered on main pyralid borers in China

open access: yesNew Plant Protection, Volume 2, Issue 3, September 2025.
Based on the registration information of insecticides for controlling the main pyralid borers, active ingredients with high dosages were identified and analyzed based on formulations and target pests. Additionally, the environmental risks on honeybees were assessed.
Haoyu Shi   +8 more
wiley   +1 more source

Synthesis, DFT Studies, and Molecular Docking Analysis of a Novel Acylpyrazolone Schiff Base and Its Metal(II) Complexes

open access: yesApplied Organometallic Chemistry, Volume 39, Issue 8, August 2025.
Acylpyrazolone Schiff of antipyrine and its metal complexes were synthesized. The ligand was crystallized in monoclinic crystal system with space group P21/c while the metal complexes formed showed more stability for pseudo‐tetrahedral complexes than the octahedral forms as confirmed by DFT calculations. ABSTRACT Novel Schiff base ligand 1,5‐dimethyl‐4‐
Nkechinyere N. Ukwueze   +10 more
wiley   +1 more source

Crystal structures of crotonaldehyde semicarbazone and crotonaldehyde thiosemicarbazone from X-ray powder diffraction data

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
Crotonaldehyde semicarbazone {systematic name: (E)-2-[(E)-but-2-en-1-ylidene]hydrazinecarboxamide}, C5H9N3O, (I), and crotonaldehyde thiosemicarbazone {systematic name: (E)-2-[(E)-but-2-en-1-yldene]hydrazinecarbothioamide}, C5H9N3S, (II), show the same E
Atef Arfan, Mwaffak Rukiah
doaj   +1 more source

Synthesis and biological evaluation of anti-Toxoplasma gondii activity of a novel scaffold of thiazolidinone derivatives [PDF]

open access: yes, 2017
We designed and synthesised novel N-substituted 1,3-thiazolidin-4-one derivatives for the evaluation of their anti-Toxoplasma gondii efficacy. This scaffold was functionalised both at the N1-hydrazine portion with three structurally different moieties ...
Bizzarri, Bruna   +9 more
core   +1 more source

Reactivity of Imidazole‐ and Pyridine‐Carboxaldehydes for Gem‐Diol and Hemiacetal Generation: Theoretical and Experimental Insights

open access: yesChemistryOpen, Volume 14, Issue 8, August 2025.
The generation of the gem‐diol and hemiacetal forms using pyridine‐ and imidazole‐carboxaldehyde isomers in different chemical environments was studied by NMR spectra and combined with theoretical calculations. Unlike aprotic solvents, protic ones, as water and methanol, favored the generation of the gem‐diol and hemiacetal structures.
Ayelén F. Crespi   +5 more
wiley   +1 more source

Enantioselective Tsuji Allylations [PDF]

open access: yes, 2007
The family of allylation reactions developed by Tsuji in the 1980s are capable of generating tertiary and quaternary carbon stereocenters from several synthetic precursors.
Mohr, Justin T., Stoltz, Brian M.
core   +1 more source

Preparation and Characterization of Cr(III) & Cu(II) Complexes With Mixed Ligand Containing Isatinazine and Semicarbazones [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
chromium(III) and copper(II) complexes with mixed ligands isatinazine-IAH2 and semicarbazone ligands {including benzoinsemicarbazone- B'SCH2 or isatinsemicarba- zone- ISCH2 or isatinbis(semicarbazone) -ISCH3} have been prepared in neutral (or slightly ...
Fadia. J. Al-Moula, Zohoor. F. Dawood
doaj   +1 more source

Cyclopentenyl ethylamines active on CNS [PDF]

open access: yes, 1992
Two new cyclopentenylethylamines were prepared and were submitted to a pharmacological screening together with some others previously described and now reprepared. All compounds exhibited different degrees of depressive activity on CNS and good analgesic
Dimich, P.M.   +6 more
core  

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