Subsurface tile drains are used extensively throughout many agricultural areas of New Zealand to reduce excessive wetness from grazed pastures. Along with transporting water, subsurface drains also transport nutrients which have leached from the soil, potentially bypassing natural attenuation processes in shallow groundwaters and riparian zones. These nutrients have the capacity to cause excess...

The catalytic asymmetric methylation of fluoroalkylated pyruvates is shown with dimethylzinc as a methylating reagent in the presence of a copper catalyst bearing a chiral phosphine ligand. This is the first catalytic asymmetric methylation to synthesize various α-fluoroalkylated tertiary alcohols with CF3, CF2H, CF2Br, and n-C n F2n+1 (n = 2, 3, 8) groups in good-to-high yields and enantiosele...

The direct UV irradiation of cyclic phosphites 1–4 was carried out in argon-saturated solvents. In all cases examined, the rearranged, ring-contracted Photo-Arbuzov phosphonate was the major product formed with isolated yields ranging from 40 to 50%. These phosphonate photoproducts, 5–8, represent novel, bicyclic, aromatic phosphonate systems never before described in the literature of heterocy...

Aromatic methyl ketones and cyclic asymmetric ketones underwent hydrophosphorylation with P-stereogenic H-P species in the presence of potassium carbonate to produce P,C-stereogenic tertiary α-hydroxyl phosphinates in excellent yields with up to 99 : 1 dr. The diastereoselectivity was induced by a reversible conversion of less stable stereomer of product to that of a more stable one via an equi...

a) A modified procedure of the WIDNELL and TATA8 method yields rat liver nuclei manifesting a high degree of purity and activity. b) These nuclei contain a nucleoside-dependent phosphorylating activity that is readily released and apparently unrelated to either glycolysis or respiration. c) The main incorporation of the 32Pi is into ribose-I-phosphate; nucleoside phosphorylase activity satisfac...

Ptychography is an electron diffraction technique in which Bragg reflections are interfered coherently in order to measure the phases of diffraction orders directly. Two simple reconstruction methods exist, which require different degrees of coherence in the illuminating electron beam. Simulations on InP <110> for two electron accelerating voltages suggest that the asymmetric ‘dumbbells’ can be...

The use of mineral phosphorus (P) fertilizers, often referred to as anthropogenic phosphorus, has dramatically altered the global cycle and increased soil fertility crop yields. Quantifying agriculture’s reliance on requires estimates its contribution agricultural fertility. Here we present a model dynamics simulating availability in soils for individual countries from 1950 2017. Distinguishing...

Phosphates offer a range of possibilities when used in meat and poultry productions. Food grade phosphates are used in meat products for several reasons such as changing and/or stabilizing of pHvalue, increasing water holding capacity in order to lead to higher yields, decreasing losses of weight in cooking, improving texture and sensory properties (tenderness, juiciness, color and flavor), ext...

The synthesis and reactivity of tetrazol-5-yl-phosphorus ylides towards N-halosuccinimide/TMSN₃ reagent systems was explored, opening the way to new haloazidoalkenes bearing a tetrazol-5-yl substituent. These compounds were obtained as single isomers, except in one case. X-ray crystal structures were determined for three derivatives, establishing that the non-classical Wittig reaction leads to ...