Results 11 to 20 of about 52,767 (240)

Chemical composition and insecticidal effect of methanol extract of Capparis spinosa L. fruits on Tribolium confusum Jacquelin du Val, 1863 and Sitophilus oryzae (L., 1763) adults

open access: yesActa Agriculturae Slovenica, 2022
Tribolium confusum and Sitophilus oryzae are stored product pests found worldwide. Environmental damages, human health issues and the emergence of resistance are driving scientists to seek alternatives to synthetic insecticides for its control.
Tayebe MAHMOUDI MANESH   +3 more
doaj   +1 more source

Scientific Opinion on the safety and efficacy of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups (chemical group 20) when used as flavourings for all animal species [PDF]

open access: yesEFSA Journal, 2013
Chemical group 20 consists of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups, of which 31 are currently authorised for use as flavours in food.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Synthesis of Isothiocyanates Using DMT/NMM/TsO as a New Desulfurization Reagent

open access: yesMolecules, 2021
Thirty-three alkyl and aryl isothiocyanates, as well as isothiocyanate derivatives from esters of coded amino acids and from esters of unnatural amino acids (6-aminocaproic, 4-(aminomethyl)benzoic, and tranexamic acids), were synthesized with ...
Łukasz Janczewski   +2 more
doaj   +1 more source

Synthesis and Study of Some 4-Chlorophenoxy Methyl Substituted amido1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles and 1,2,4-Triazoles from 4-Chloro phenoxy acetic acid [PDF]

open access: yesمجلة التربية والعلم, 2013
: In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. 4-Chlorophenol was treated with chloroacetic acid to give 4-chlorophenoxy acetic acid (C1) which was reacted with thionyl chloride ...
Mudhar A. Othman, Khalid M. Daoud
doaj   +1 more source

Soil Disinfestation Efficacy against Soil Fungal Pathogens in Strawberry Crops in Spain: An Overview

open access: yesAgronomy, 2021
(1) Background: Strawberry cultivation is highly dependent on soil disinfestation for proper development. Since the definitive methyl bromide phase-out, other chemicals have been used as alternatives.
Berta de los Santos   +4 more
doaj   +1 more source

Green synthesis of highly functionalized octahydropyrrolo[3,4-c]pyrrole derivatives using subcritical water, and their anti(myco)bacterial and antifungal activity [PDF]

open access: yes, 2018
A series of novel 2-(thiazol-2-yl)-octahydropyrrolo[3,4-c]pyrroles was synthesized by reaction of octahydropyrrolo[3,4-c]pyrrole N-benzoylthiourea derivatives and α-haloketones in subcritical water at 130 °C in 75-91% yield.
De Coen, Laurens   +4 more
core   +1 more source

Click grafting of seaweed polysaccharides onto PVC surfaces using an ionic liquid as solvent and catalyst [PDF]

open access: yes, 2013
International audienceSeaweed antibacterial polysaccharides were grafted onto poly(vinylchloride) (PVC) surfaces using an original click chemistry pathway.
Bigot, Sandra,   +3 more
core   +4 more sources

Catch and release’ cascades: a resin-mediated three-component cascade approach to small molecules [PDF]

open access: yes, 2006
The application of a ‘catch and release’ approach to palladium-catalysed multi-component cascade reactions leads to diverse libraries of pharmacologically interesting small molecules in high yield and with excellent ...
Andrew Cook   +23 more
core   +1 more source

Herbivore induction of the glucosinolate-myrosinase defense system: major trends, biochemical bases and ecological significance [PDF]

open access: yes, 2009
Like many other plant defense compounds, glucosinolates are present constitutively in plant tissues, but are also induced to higher levels by herbivore attack.
Gershenzon, J., Textor, S.
core   +2 more sources

Biofumigation: An alternative strategy for the control of plant parasitic nematodes

open access: yesJournal of Integrative Agriculture, 2020
Plant-parasitic nematodes wreak havoc on the yield and quality of crops worldwide. Damage from these pests is estimated to exceed US$100 billion annually but is likely higher due to misdiagnosis.
Rebecca Jean Barnes BRENNAN   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy