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Phosphine Organocatalysis [PDF]

open access: yesChemical Reviews, 2018
The hallmark of nucleophilic phosphine catalysis is the initial nucleophilic addition of a phosphine to an electrophilic starting material, producing a reactive zwitterionic intermediate, generally under mild conditions. In this Review, we classify nucleophilic phosphine catalysis reactions in terms of their electrophilic components. In the majority of
Hongchao Guo   +4 more
openaire   +5 more sources

CONFIRMATION OF CIRCUMSTELLAR PHOSPHINE [PDF]

open access: yesThe Astrophysical Journal, 2014
Accepted for publication in ApJ ...
Marcelino AgĂșndez   +5 more
openaire   +9 more sources

Mechanisms of Phosphine Toxicity [PDF]

open access: yesJournal of Toxicology, 2011
Fumigation with phosphine gas is by far the most widely used treatment for the protection of stored grain against insect pests. The development of high-level resistance in insects now threatens its continued use.
Nisa S. Nath   +4 more
doaj   +4 more sources

Coordination chemistry with phosphine and phosphine oxide-substituted hydroxyferrocenes

open access: yesDalton Transactions, 2010
New unsymmetrical hydroxyferrocenes were synthesised from dibromoferrocene. The oxygen heteroatom was introduced via lithiation and quenching with bis-trimethylsilylperoxide followed by hydrolysis to unmask the hydroxyl functionality. The coordination chemistry of 1'-(diphenylphosphino)-1-hydroxyferrocene 2 was explored with palladium and rhodium ...
Atkinson, RCJ   +3 more
openaire   +6 more sources

Analysis of the Distribution of Total Phosphine and the Characteristics of Phosphine Poisoning in 29 Victims

open access: yesFayixue Zazhi, 2022
ObjectiveTo study the distribution of total phosphine in phosphine poisoning victims and summarize the characteristics of phosphine poisoning cases.MethodsThe phosphine and its metabolites in the biological samples of 29 victims in 16 phosphine poisoning
YAN Hui   +6 more
doaj   +1 more source

Responses of phosphate transporter gene and alkaline phosphatase in Thalassiosira pseudonana to phosphine. [PDF]

open access: yesPLoS ONE, 2013
Phosphine, which is released continuously from sediment, can affect the eco-physiological strategies and molecular responses of phytoplankton. To examine the effects of phosphine on phosphorus uptake and utilization in Thalassiosira pseudonana, we ...
Mei Fu   +3 more
doaj   +1 more source

Pesticidal Toxicity of Phosphine and Its Interaction with Other Pest Control Treatments

open access: yesCurrent Issues in Molecular Biology, 2023
Phosphine is the most widely used fumigant for stored grains due to a lack of better alternatives, all of which have serious shortcomings that restrict their use.
Saad M. Alzahrani, Paul R. Ebert
doaj   +1 more source

Gut Bacteria Promote Phosphine Susceptibility of Tribolium castaneum by Aggravating Oxidative Stress and Fitness Costs

open access: yesInsects, 2023
Knowledge about resistance mechanisms can provide ideas for pesticide resistance management. Although several studies have unveiled the positive or negative impacts of gut microbes on host pesticide resistance, minimal research is available regarding the
Zhengyan Wang   +4 more
doaj   +1 more source

Comparative toxicity of fumigants and a phosphine synergist using a novel containment chamber for the safe generation of concentrated phosphine gas. [PDF]

open access: yesPLoS ONE, 2006
With the phasing out of ozone-depleting substances in accordance with the United Nations Montreal Protocol, phosphine remains as the only economically viable fumigant for widespread use.
Nicholas Valmas, Paul R Ebert
doaj   +1 more source

Role of Lipids in Phosphine Resistant Stored-Grain Insect Pests Tribolium castaneum and Rhyzopertha dominica

open access: yesInsects, 2022
Insects rely on lipids as an energy source to perform various activities, such as growth, flight, diapause, and metamorphosis. This study evaluated the role of lipids in phosphine resistance by stored-grain insects.
Ihab Alnajim   +5 more
doaj   +1 more source

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