Results 21 to 30 of about 710 (157)

Synthesis and characterization of chiral imidazolinones [PDF]

open access: yes, 1997
The commercial application of imidazolinone derivatives can be found in herbicides where they inhibit acetolactate synthase (ALS; EC 4.1.3.18; also known as acetohydroxyacid synthase). The imidazolinone class of herbicides have the advantage of long term
Chen, Huang-Ming Philip
core   +1 more source

Synthesis of some oxazolinones and imidazolinones and their antimicrobial screening [PDF]

open access: yes, 2005
Sintetizirano je nekoliko novih derivata imidazolinona 1-aminoetil/fenil-2-metil/fenil-4-acetiliden/benziliden-imidazolin-5(4H)-ona iz odgovarajućeg acetiliden/benziliden oksazolinona. Reakcijom imidazolinona i benzaldehida pripravljene su Schiffove baze.
DE, BIPLAB   +2 more
core   +1 more source

Acetohydroxiacid Synthase Activity in Leaves and Roots of Two Wheat Genotypes with Differerential Resistance to Imidazolinones Herbicides [PDF]

open access: yes, 2023
Non-Peer ReviewedHerbicides from the imidazolinone family control of a broad spectrum of weeds with low application rates. The site of action of these herbicides is the enzyme acetohydroxyacid synthase (AHAS) that participates in the first step of ...
Anastasini, Valentina   +4 more
core  

Faster degradation of herbicidally-active enantiomer of imidazolinones in soils

open access: yes, 2010
Imidazolinones are chiral herbicides, comprised of two enantiomers with differential herbicidal activity. In this study, the selective degradation of enantiomers of the three imidazolinone herbicides, imazapyr, imazethapyr and imazaquin, was determined ...
Preston, C.   +5 more
core   +1 more source

Generation of Herbicide‐Resistant Alfalfa Germplasm via Prime Editing

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Alfalfa (Medicago sativa) is the most widely cultivated forage crop worldwide, owing to its high protein content, balanced amino acid profile, and abundance of vitamins and minerals. However, weed infestation severely threatens alfalfa yield and quality.
Shihao Li   +5 more
wiley   +1 more source

Dissipation and carryover of imidazolinone herbicides in imidazolinone-resistant rice (Oryza sativa) [PDF]

open access: yes, 2018
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. ; Title from title screen of research.pdf file (viewed on October 26, 2007) ; Vita.
openaire   +2 more sources

Probing the molecular determinants of emission enhancement in RNA aptamer–metal complex systems

open access: yesPhotochemistry and Photobiology, EarlyView.
Light up aptamer: fluorophore pairs are widely used in sensing and imaging, with coordination complex fluorophores providing specific benefits due to their long‐lived emission. Here, we examined key structural and electronic features of these metal complexes to identify the requirements for productive engagement with an RNA aptamer.
Sarah M. Kriger   +3 more
wiley   +1 more source

Herbicides (new generation): imidazolinones, aryloxyphenoxyprpionic acids/esters, and diphenilethers, analysis of

open access: yes, 2000
This article critically examines the existing methodologies including residue isolation and preconcentration, cleanup, chromatographic analysis, such as gas chromatography (GC), high-performance liquid chromatography (HPLC), hyphenated techniques, such ...
LAGANA', Aldo
core   +1 more source

An Investigation into the asymmetric synthesis of imidazolinones via reaction of chiral alpha-amino acid esters with nitrils [PDF]

open access: yes, 1991
The objective of this investigation was to develop a new synthetic method for the asymmetric synthesis of imidazolinones. This method involved an addition-cyclization reaction of an optically pure alpha-amino acid ester and a nitrile.
Del Vecchio, Franklin A.
core   +1 more source

PIII/PV Redox Organocatalysis Enables Intramolecular Aza‐Wittig Cyclizations of Imides: Direct Access to Pharmaceutically Relevant Amidine Scaffolds

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A metal‐free PIII/PV redox organocatalytic aza‐Wittig reaction enables the efficient cyclization of azide‐functionalized imides into pharmaceutically relevant amidine‐containing heterocycles. Using only 2 mol% of a methanophosphocine catalyst and a Brønsted acid additive, a broad range of substrates is converted in up to 96% yield, including ...
Raphael El Bekri Saudain   +3 more
wiley   +1 more source

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