Results 11 to 20 of about 90,252 (235)
Phosphine-Catalyzed Remote 1,7-Addition for Synthesis of Diene Carboxylates
, 2020 A phosphine-catalyzed remote 1,7-addition of vinyl allenoates has been developed, providing a series of 1,3-dienes derivatives in high yields (up to 99%) and with good chemo-, regio-, and stereoselectivity.
You Huang +3 more
core +3 more sources
, 2022 We herein report a phosphine-catalyzed (3 + 2) annulation of cyclopropenones with a wide variety of electrophilic ? systems, including aldehydes, ketoesters, imines, isocyanates, and carbodiimides, offering products of butenolides, butyrolactams ...
Shenyu Shen (17250790) +7 more
core +5 more sources
Phosphine-Mediated Cleavage of Sulfur–Sulfur Bonds
, 2022 A series of phosphine-mediated reactions resulting in the cleavage of sulfur–sulfur bonds in the imidazole-based dithione dimer (1) have been investigated.
Phuong M. Tran (13005274) +13 more
core +2 more sources
Evaluation of headspace Solid Phase Micro-extraction method for analysis of phosphine residues in wheat [PDF]
, 2010 This new method utilizes headspace-solid-phase micro extraction (HS-SPME) for pre-concentration of PH3. Phosphine was determined with gas chromatography/pulsed flame photometric detector (PFPD).
Padovan, B., Ren, Y.L., Ren, Y. L.
core +1 more source
Application of phosphine fumigant for controlling rice storage insect pests in foundation seeds
Julius-Kühn-Archiv, 2018 The development of phosphine resistance in storage insect pests is now problematic, so the increase of rate and frequency of phosphine fumigation in a storage room is needed.
Kaewnango, Ekkarat +1 more
doaj +1 more source
Scientific Reports, 2023 Resistance to phosphine is widely reported in several stored product insect pests globally. However, knowledge of its prevalence and the association of antioxidant enzymes with phosphine resistance is limited.
Satyapriya Singh +4 more
doaj +1 more source
Metal Active-Site Exposure via Ligand Engineering Boosts CO<sub>2</sub>-to-Ethylene Conversion on Cu<sub>18</sub> Nanoclusters. [PDF]
Adv Sci (Weinh)Through quantitative ligand stripping of [Cu18H17(PR3)10]+ nanoclusters via intramolecular interaction modulation, selectivity for CO2 electroreduction to C2H4 is significantly enhanced. The weakly coordinating ligand triggers dual‐ligand stripping (FEC2H4 = 70.59%), whereas the strongly coordinating ligand results in single‐ligand retention (FEC2H4 ...
Chen Z +8 more
europepmc +2 more sources
Effect of free phosphine on sulfate reduction
浙江大学学报. 农业与生命科学版, 2008 The effects of free phosphine on growth and metabolism of sulfate-reducing bacteria were investigated using batch experiment. The results show that when COD/SO42- ratio was 1.0, high phosphine level had an adverse effect on sulfate reduction.
GUO Xia-li +3 more
doaj +1 more source
Phosphine-Based Z‑Selective Ruthenium Olefin Metathesis Catalysts
, 2016 Whereas a number of highly Z-selective ruthenium-based olefin metathesis catalysts bearing N-heterocyclic carbene ligands have been reported in recent years, Z-selectivity has so far been difficult to achieve for phosphine-based catalysts.
Vidar R. Jensen (1522849) +4 more
core +2 more sources
Susceptibility of phosphine-resistant cigarette beetles to various insecticides
Julius-Kühn-Archiv, 2018 Management of phosphine resistance in the cigarette beetle Lasioderma serricorne (F.) has become a topic of great interest to the tobacco industry in recent years.
Fukazawa, Naoto
doaj +1 more source