12 research outputs found
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A reaction of bis(triphenylphosphine)palladium dibromide with white phosphorus in the presence of NaBPh4 selectively gives phosphorous acid H3PO3. The mechanism of the formation involves coordination of a white phosphorus molecule, ligand exchange, and hydrolysis of the coordinated P4 molecule in the coordination sphere of palladium. Ā© 2010 Springer Science+Business Media, Inc
Electrochemical reactions of white phosphorus
The main electrochemical transformations of elemental (white) phosphorus were considered. Special attention was given to the recently developed processes of preparation of organophosphorus compounds (OPCs) with phosphorus-carbon bonds. The electrochemical approaches to the synthesis of OPCs from white phosphorus using organonickel and organozinc reagents are described. The importance of using the electrochemical methods for the generation of highly reactive phosphorus intermediates was shown for phosphine oxide H3PO obtained for the first time. This provides significant prospects for the electrochemical approaches that could be applied for the development of technologies of the chlorine-free synthesis of OPCs from white phosphorus. Ā© 2012 Springer Science+Business Media New York
Activation and transformation of white phosphorus by palladium(ii) complexes
A reaction of bis(triphenylphosphine)palladium dibromide with white phosphorus in the presence of NaBPh4 selectively gives phosphorous acid H3PO3. The mechanism of the formation involves coordination of a white phosphorus molecule, ligand exchange, and hydrolysis of the coordinated P4 molecule in the coordination sphere of palladium. Ā© 2010 Springer Science+Business Media, Inc
Selective synthesis of nanosized palladium phosphides from white phosphorus
The reaction of white phosphorus with the palladium(0) complex [Pd 2(dba)3] (dba is dibenzylideneacetone) leads to stable associates [Pd(P4)]n. The coordination polymer obtained is stabilized in a solid state via the formation of nanosized palladium phosphides Pd3P2 and Pd6P with average particle sizes of 140 and 65 nm, respectively. Ā© 2011 Mendeleev Communications. All rights reserved
Electrochemical reactions of white phosphorus
The main electrochemical transformations of elemental (white) phosphorus were considered. Special attention was given to the recently developed processes of preparation of organophosphorus compounds (OPCs) with phosphorus-carbon bonds. The electrochemical approaches to the synthesis of OPCs from white phosphorus using organonickel and organozinc reagents are described. The importance of using the electrochemical methods for the generation of highly reactive phosphorus intermediates was shown for phosphine oxide H3PO obtained for the first time. This provides significant prospects for the electrochemical approaches that could be applied for the development of technologies of the chlorine-free synthesis of OPCs from white phosphorus. Ā© 2012 Springer Science+Business Media New York
Electrochemical reactions of white phosphorus
The main electrochemical transformations of elemental (white) phosphorus were considered. Special attention was given to the recently developed processes of preparation of organophosphorus compounds (OPCs) with phosphorus-carbon bonds. The electrochemical approaches to the synthesis of OPCs from white phosphorus using organonickel and organozinc reagents are described. The importance of using the electrochemical methods for the generation of highly reactive phosphorus intermediates was shown for phosphine oxide H3PO obtained for the first time. This provides significant prospects for the electrochemical approaches that could be applied for the development of technologies of the chlorine-free synthesis of OPCs from white phosphorus. Ā© 2012 Springer Science+Business Media New York
Electrochemical reactions of white phosphorus
The main electrochemical transformations of elemental (white) phosphorus were considered. Special attention was given to the recently developed processes of preparation of organophosphorus compounds (OPCs) with phosphorus-carbon bonds. The electrochemical approaches to the synthesis of OPCs from white phosphorus using organonickel and organozinc reagents are described. The importance of using the electrochemical methods for the generation of highly reactive phosphorus intermediates was shown for phosphine oxide H3PO obtained for the first time. This provides significant prospects for the electrochemical approaches that could be applied for the development of technologies of the chlorine-free synthesis of OPCs from white phosphorus. Ā© 2012 Springer Science+Business Media New York
Selective synthesis of nanosized palladium phosphides from white phosphorus
The reaction of white phosphorus with the palladium(0) complex [Pd 2(dba)3] (dba is dibenzylideneacetone) leads to stable associates [Pd(P4)]n. The coordination polymer obtained is stabilized in a solid state via the formation of nanosized palladium phosphides Pd3P2 and Pd6P with average particle sizes of 140 and 65 nm, respectively. Ā© 2011 Mendeleev Communications. All rights reserved
Selective synthesis of nanosized palladium phosphides from white phosphorus
The reaction of white phosphorus with the palladium(0) complex [Pd 2(dba)3] (dba is dibenzylideneacetone) leads to stable associates [Pd(P4)]n. The coordination polymer obtained is stabilized in a solid state via the formation of nanosized palladium phosphides Pd3P2 and Pd6P with average particle sizes of 140 and 65 nm, respectively. Ā© 2011 Mendeleev Communications. All rights reserved
Safety of Use of Russian Biosimilars of Interferon Beta-1b in the Treatment of Multiple Sclerosis: a Meta-analysis of Original Studies
Presently, an active search forĀ modern drugs forĀ theĀ treatment of multiple sclerosis is ongoing. SinceĀ theĀ treatment with original drugs is expensive, therefore, theĀ development of local biosimilars is underway, which at a lowerĀ cost should be effective and safeĀ as original ones. The aim of the studyĀ is to compare theĀ safety of foreign preparations of interferon beta-1b (Betaferon andĀ Ekstavia) with Russian biosimilars (RonbetalĀ®, InfibetaĀ®) in theĀ treatment of multiple sclerosis to ensure theĀ possibility of import substitution. In theĀ present study theĀ safety of domestic interferon beta-1b biosimilars in theĀ treatment of multiple sclerosis was studied using a meta-analysis method. There were 3 studies included in the meta-analysis. A total of 778 people participated in theĀ study. The average age of theĀ subjects was 35.92 Ā± 9.57 years. The main inclusion criteria were a reliable diagnosis of remittent or secondary progressive multiple sclerosis with exacerbations, anĀ EDSS scoreĀ lessĀ than 5.5. TheĀ subjects wereĀ divided into 2 groups: the first group received therapy with theĀ Russian biosimilars of interferon beta-1b (RonbetalĀ®, InfibetaĀ®), theĀ second ā theĀ foreign ones (Betaferon, Extavia) in therapeutic doses. The duration of therapy was at least 6 weeks. Results. A meta-analysis of three studies showed theĀ following data: the difference in the frequency of local complications such as hyperemia in patients who received Russian andĀ foreign interferon beta-1b analogues statistically insignificant, theĀ relative risk is 1.243 (p > 0.05). No statistically significant differences in the frequency of influenza-like syndrome wereĀ alsoĀ detected: theĀ relative risk is 1.459 (p > 0.05). Conclusion. ThisĀ study has increased the power of the evidence base in the application of Russian biosimilars. The conducted meta-analysis showed the absence of a statistically significant difference in the incidence of such side effects as theĀ injection site hyperemia and theĀ influenza-like syndrome in domestic biosimilars of interferon beta-1b compared with foreign ones