In each of seven fully controlled experiments, potted California, U.S. coast live oak trees were artificially inoculated with Phytophthora ramorum, the agent of a tree disease commonly referred to as sudden oak death. Phosphites were applied to trees using a range of application approaches either as preventive or therapeutic treatments. Soil drenches and bark application of phosphites were inef...

Species in the genus Phytophthora cause significant economic losses crops and damage to forests natural ecosystems worldwide. Currently, phosphite is most effective chemical for disease management, but excessive concentrations can result phytotoxicity plants development of tolerance by pathogen. Two newly developed metal chelates (alone combination) were tested their vitro planta efficacy again...

Substitution of organic with inorganic fungicides (phosphites, Phi) does not change the efficiency fertilizer nitrogen (Nf) in winter wheat. This hypothesis was tested 2016/2017 and 2017/2018 growing seasons. A two-factorial experiment three phosphite variants (Cu–Phi, Mg–Phi, Cu/Mg) six plant protection methods (fungicides + Phi ⟶ reduced fungicide frequency phosphite). Grain yield decreased i...

In response to the escalating global energy requests and need address them in a sustainable manner, researchers have identified hydrogen as an vector that provides practical way store use from renewable sources. To make step forward, electrocatalytic properties for evolution reaction alkaline medium of graphite electrodes modified with combinations nickel phosphite free-base porphyrins were inv...

Electroless nickel plating baths have to be discarded when levels of phosphites build up and interfere with the plating process. OWMC funded research conducted at ORTECH International to determine whether phosphites could be removed from plating bath solution. The first attempt to do this by adsorption on flyash was unsuccessful. However, the use of calcium ion to precipitate calcium phosphite ...

A metal-free stereoselective reductive coupling reaction between isatins and aldehydes is reported. The reaction relies on commercial diethyl phosphite (∼€70 kg-1) as the stoichiometric reductant. Base-catalyzed Pudovik addition and phosphonate/phosphate rearrangement achieved polarity inversion on the isatin, and the derived carbanions were trapped by aldehydes with subsequent dialkoxyphosphin...

The title compound, C(12)H(9)Cl(2)NO(2), was prepared by the esterification of 3,7-dichloro-quinoline-8-carboxylic acid with triethyl phosphite. The crystal structure is stabilized by aromatic π-π stacking between the benzene and the pyridine rings of neighbouring mol-ecules [centroid-centroid distances = 3.716 (2) and 3.642 (2) Å]. In addition, weak inter-molecular C-H⋯N hydrogen bonds are pre...

A protected 2-aminopurine nucleoside suitable for incorporation into oligodeoxynucleotides using phosphite triester chemical synthesis procedures has been prepared via oxidation of a purine hydrazino derivative with silver (I) oxide. Five oligodeoxynucleotides containing Eco RI and Bam HI recognition sites have been prepared such that, in the double stranded form, the 2-aminopurine base has eit...