Two new metal phosphite-oxalates, CN3H6·Co(H2PO3)(C2O4) (1) and (CN3H6)2·Mn2.5(HPO3)(C2O4)2.5(H2O)·H2O (2), have been prepared under solvent-free conditions. The two open-framework compounds have diamondoid and pillared-layered structures, respectively. Their photoluminescence and magnetic properties were also investigated.

Chloromethylgold(I) complexes of phosphine, phosphite, and N-heterocyclic carbene ligands are easily synthesized by reaction of trimethylsilyldiazomethane with the corresponding gold chloride precursors. Activation of these gold(I) carbenoids with a variety of chloride scavengers promotes reactivity typical of metallocarbenes in solution, namely homocoupling to ethylene, olefin cyclopropanation...

An efficient synthesis of a Pk trisaccharide with a functionalized side arm at the reducing end for conjugation to other molecules is presented. Construction of the Pk trisaccharide with a high alpha-selectivity was achieved in high yield by coupling a reactive galactosyl phosphite donor with a lactosyl acceptor.

A highly practical, catalytic enantioselective cyclic phosphite addition to aldehydes and ketones was developed. The reaction rate of the asymmetric hydrophosphonylation was significantly enhanced by the addition of silver carbonate. Particularly, significant improvement has been achieved on the asymmetric hydrophosphonylation of unactivated ketones, giving quaternary α-hydroxy phosphonates wit...

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...