A novel sonication-promoted Barbier reaction putatively generated the titled species from the corresponding naphthotriazinylmethyl chloride and magnesium in THF: its formal addition to a variety of carbonyl compounds in situ occurred in excellent yields. Subsequent catalytic hydrogenolysis of the triazine moiety demasked the amine, thus de®ning a route to various phenylethylamines (including th...

1. Four diabetogenic ureides were examined for their power to inhibit alkaline phosphatase and were all highly active. Of ten related compounds examined, two were poor inhibitors of phosphatase although not diabetogenic and non-inhibiting for phosphatase. The anti-phosphatase activity seems to reside in a free 5-hydroxyl group. 2. This action on phosphatase has been demonstrated in the presence...

Fatty acid synthesis from acetate in extracts of Saccharomyces cerevisiae strain LK2G12 was shown to be stimulated by alpha-glycerophosphate and citrate, and by a number of compounds related to them. Magnesium was shown to stimulate fatty acid synthesis from acetyl-coenzyme A but not from malonyl-coenzyme A, thus indicating the site of stimulation of fatty acid synthesis to be the acetyl-coenzy...

Background: Phosphonate compounds are important secondary metabolites in nature and, when linked to macromolecules in eukaryotes, they might play a role in cell signaling. The first obligatory step in the biosynthesis of phosphonates is the formation of a carbon–phosphorus bond by converting phosphoenolpyruvate (PEP) to phosphonopyruvate (P-pyr), a reaction that is catalyzed by PEP mutase. The ...

Inactivation of germicidal activity by hard water has been reported by a number of investigators (Armbruster and Ridenour, 1949; Dvorkovitz and Crocker, 1950; Mueller and Seeley, 1951; Chambers et al., 1955). Both synthetic and natural hard waters have been studied in attempts to determine more precisely the characteristics of inactivating systems. In general, it appears that the interference i...

Abstract The exploratory experiments of laser fusion welding with Sn powder and the automotive adhesive addition were conducted for DP590 dual-phase steel AZ31B magnesium alloy in an overlap steel-on-magnesium configuration. characteristics metal vapor/plasma analyzed by collecting analyzing plasma shape spectra. microstructure welded was characterized scanning electron microscopy (SEM), X-ray ...

A 90 wt.% MgH2 – 10 wt.% V2O5 composite was obtained by ball milling of a mixture of magnesium hydride and vanadia for 60 min under argon. Hydrogen sorption properties of the composite were determined volumetrically with a Sieverts-type device. Absorption was studied at temperatures of 473 and 573 K and pressure of 1 MPa, while desorption was investigated at T = 573 and 623 K and P = 0.15 MPa. ...

Remarkably volatile magnesium complexes have been prepared with the modified borohydride ligand N,N-dimethylaminodiboranate, H(3)BNMe(2)BH(3)(-). The homoleptic complex Mg(H(3)BNMe(2)BH(3))(2), its monoadducts with tetrahydrofuran and 1,2-dimethoxyethane, and the mixed ligand complex (C(5)Me(5))Mg(H(3)BNMe(2)BH(3))(thf) have been prepared. The homoleptic complex Mg(H(3)BNMe(2)BH(3))(2) has a va...

Methods of synthesis carbaminyl thioglycolic acid anilides have been studied. All the synthesized compounds were tested for pesticide activity, and substances with defoliating herbicidal activity identified among them. Compositions magnesium chlorate developed on their basis to improve its activity. A comparative assessment was made; in result, active properties found, environmental impact (eco...