نتایج جستجو برای: organophosphorus compound

تعداد نتایج: 130444  

Journal: :BMJ case reports 2012
Chandrasekharan Rajasekharan Sanu Watson Renjith Thampi Jayapal

DESCRIPTION A 12-year-old girl was referred to the emergency services with a history of consumption of pesticide chlorpyrifos (chlorpyrifos (0,0 diethyl l0 (3,5, tricholoro-2-pyridyl) phosphorothioate)), an organophosphorus compound, followed by multiple episodes of vomiting. On examination, she was conscious. Her pulse rate was 100/min, blood pressure 120/ 80 mmHg, temperature 37°C, and respir...

Journal: :Journal of Molecular Structure 2022

A novel category of phosphate-phosphonate compounds is synthesized by a sequence multicomponent reactions strategy Kabachnik-Fields and Atherton-Todd reactions. All the designed products are obtained with good chemical yields in short reaction times, confirmed spectroscopy analyses. The diethyl [(4-diethylphosphate phenyl) (4-trifluoromethyl phenylamino) methyl] phosphonate 6g characterized sin...

Journal: :Toxicology 2012
Guilherme L Emerick Georgino H DeOliveira Regina V Oliveira Marion Ehrich

The current Organisation for Economic Co-operation and Development (OECD) guidelines for evaluating organophosphorus-induced delayed neuropathy (OPIDN) require the observation of dosed animals over several days and the sacrifice of 48 hens. Adhering to these protocols in tests with enantiomers is difficult because large quantities of the compound are needed and many animals must be utilized. Th...

Journal: :Indian journal of experimental biology 2015
Suprabhat Mukherjee Niladri Mukherjee Prasanta Saini Priya Roy Santi P Sinha Babu

Organophosphorus (OP) compounds commonly used as pesticides in agriculture cause serious health problems to living beings. The present study enumerates the ameliorating effect of ginger extract (GE) against phosphamidon (PHO, an organophosphorus insecticide) induced hepatotoxicity. GE was prepared from dried ginger and characterized for compound profile and antioxidant activity. Eight groups of...

Certain organophosphorus esters such as diisopropylfluorophosphate (DFP) cause delayed neuropathy by inhibition of neuropathy target esterase (NTE) keeping neuron in normal function. In this study, effects of neurobion alone and in combination with dexamethasone on DFP–induced delayed neuropathy were evaluated. Thirty-five mice were divided to five groups that each group consists 7 mice. Except...

2011
Syed M Nurulain

Oximes are well known as acetylcholinesterase reactivators and are used in organophosphorus poisoning to reactivate inhibited acetylcholinesterase. Therapeutically available oximes, namely, pralidoxime (2-PAM), obidoxime, trimedoxime and Hagedorn oxime (HI-6), have no broad-spectrum activity against structurally different kinds of organophosphorus anticholinesterases. The widely used oxime, 2-P...

Journal: :Acta crystallographica. Section F, Structural biology and crystallization communications 2013
Guillaume Gotthard Julien Hiblot Daniel Gonzalez Eric Chabrière Mikael Elias

Enzymes that are capable of degrading neurotoxic organophosphorus compounds are of increasing interest because of the lack of efficient and clean methods for their removal. Recently, a novel organophosphorus hydrolase belonging to the metallo-β-lactamase superfamily was identified and isolated from the mesophilic bacterium Pseudomonas pseudoalcaligenes. This enzyme, named OPHC2, is endowed with...

2013
Hideki Yorimitsu

Organophosphorus compounds are important in organic chemistry. This review article covers emerging, powerful synthetic approaches to organophosphorus compounds by homolytic substitution at phosphorus with a carbon-centered radical. Phosphination reagents include diphosphines, chalcogenophosphines and stannylphosphines, which bear a weak P-heteroatom bond for homolysis. This article deals with t...

2002
T Haumann J Thumulla

Semi volatile organochemicals such as chlorinated organophosphorus and organotin compounds are detected in many indoor materials and residential house dust samples. Chlorinated phosphorus based flame retardants are found in 90 % of over 1,500 house dust samples ranging from 0.1 to 1,300 mg/kg. The results of material samples show that many polyurethane soft foams, sealants, and finishes contain...

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