Results 31 to 40 of about 47,147 (275)

Development of a Larval Zebrafish Model for Acute Organophosphorus Nerve Agent and Pesticide Exposure and Therapeutic Evaluation

open access: yesToxics, 2020
Organophosphorus compound exposure remains a present threat through agricultural accidents, warfare, or terrorist activity. The primary mechanism of organophosphorus toxicity is through inhibition of the enzyme acetylcholinesterase, with current ...
Jeffrey A. Koenig   +2 more
doaj   +1 more source

Phosphinate-containing heterocycles: A mini-review

open access: yesBeilstein Journal of Organic Chemistry, 2014
This review provides an overview of recent efforts towards the synthesis of phosphinate heterocycles R1R2P(O)(OR). Our laboratory and others’ have been involved in this field and as a result new P–C, P–N, and P–O containing heterocyclic motifs are now ...
Olivier Berger, Jean-Luc Montchamp
doaj   +1 more source

Substrate‐Controlled Enantiodivergence in Ni‐Catalyzed Access to Phosphorylated Oxindoles With Quaternary Stereocenters

open access: yesAngewandte Chemie, EarlyView.
An efficient, enantiodivergent synthesis of phosphorylated oxindoles with quaternary stereocenters is achieved via a nickel‐catalyzed intermolecular Heck‐phosphorylation cascade. Employing a single chiral catalyst, either product enantiomer is selectively accessed simply by changing the alkene leaving group. DFT calculations trace this stereodivergence
Haimeng Zhu   +4 more
wiley   +2 more sources

Facile and Low-Cost SPE Modification Towards Ultra-Sensitive Organophosphorus and Carbamate Pesticide Detection in Olive Oil

open access: yesMolecules, 2020
Despite the fact that a considerable amount of effort has been invested in the development of biosensors for the detection of pesticides, there is still a lack of a simple and low-cost platform that can reliably and sensitively detect their presence in ...
Dionysios Soulis   +5 more
doaj   +1 more source

Organophosphorus compounds and oximes: a critical review

open access: yesArchives of Toxicology, 2020
Organophosphorus (OP) pesticides and nerve agents still pose a threat to the population. Treatment of OP poisoning is an ongoing challenge and burden for medical services.
F. Worek, H. Thiermann, T. Wille
semanticscholar   +1 more source

Phosphoryl Radicals from Trivalent Iminyl Phosphines: A Photocatalytic Approach to N‐Phosphoryl Azetidines

open access: yesAngewandte Chemie, EarlyView.
Photochemically generated phosphoryl radicals from iminyl phosphines enable strain‐release addition to azabicyclobutanes, providing access to elusive N‐phosphoryl azetidines. Combined experimental, computational, and EPR studies reveal an unconventional water‐assisted photoredox pathway.
Chandu G. Krishnan   +4 more
wiley   +2 more sources

Organophosphorus Chemistry

open access: yes, 2023
The Printed Edition of the Special Issue "Organophosphorus Chemistry: A New Perspective" takes the reader on a journey through the chemistry of organophosphorus compounds. It contains seven original research articles and three reviews covering aspects of

core   +1 more source

Theoretical studies on the intramolecular cyclization of 2,4,6-t-Bu3C6H2P=C: and effects of conjugation between the P=C and aromatic moieties

open access: yesBeilstein Journal of Organic Chemistry, 2014
The intramolecular C–H insertion of the Mes*-substituted phosphanylidenecarbene [Mes*P=C:] (Mes* = 2,4,6-t-Bu3C6H2) and physicochemical properties of the cyclized product, 6,8-di-tert-butyl-3,4-dihydro-4,4-dimethyl-1-phosphanaphthalene were studied based
Masaaki Yoshifuji, Shigekazu Ito
doaj   +1 more source

Effects of glyphosate in common carp: Histopathological and immunohistochemical study [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2023
We aimed in the current study to determine the LC50 of glyphosate in common carp fish (Cyprinus carpio L.) within 24 hours in addition to studying the pathological lesions of sublethal concentration of glyphosate (25 and 50% of LC50) in kidney and liver ...
Safa F. Awad, Saevan S. Al-Mahmood
doaj   +1 more source

pH-Controlled Assembly of Five New Organophosphorus Strandberg-Type Cluster-Based Coordination Polymers for Enhanced Electrochemical Capacitor Performance.

open access: yesInorganic Chemistry, 2020
Cluster-based coordination polymers (CCPs) have shown promise as capacitors. To investigate the relativity between capacitor performance and crystal structure, herein, five new CCPs based on organophosphorus Strandberg-type clusters were synthesized via ...
Borong Lu   +6 more
semanticscholar   +1 more source

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