- The influence of the sacrificial anode nature on the mechanism of electrochemical arylation and alkylation of white phosphorus
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The material of the sacrificial anode has a substantial effect on the nature and yield of the target products of electrochemical phosphorylation of organic halides by white phosphorus in the presence of the nickel complexes with 2,2′-bipyridine. The use of the zinc anode results in the products with tricoordinated phosphorus, viz., triorganylphosphines, the reaction on the aluminum anode affords triorganylphosphine oxides, and the presence of Mg 2+ ions in the reaction mixture provides the transformation of white phosphorus into cyclic phosphines (PhP)5.
- Yakhvarov,Budnikova,Tazeev,Sinyashin
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- Single-stage synthesis of alkyl-H-phosphinic acids from elemental phosphorus and alkyl bromides
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Elemental phosphorus (red or white) reacts with alkyl bromides at 60–62 °C in the phase-transfer catalytic system KOH/H2O/PhMe/Et3BnNCl to afford alkyl-H-phosphinic acids in up to 47% yield.
- Gusarova, Nina K.,Sutyrina, Anastasiya O.,Kuimov, Vladimir A.,Malysheva, Svetlana F.,Belogorlova, Natalia A.,Volkov, Pavel A.,Trofimov, Boris A.
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p. 328 - 330
(2019/06/13)
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- The Michaelis-Becker reaction in phosphonium and imidazolium ionic liquids
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The Michaelis-Becker reaction was performed in imidazolium ionic liquids using sodium hydroxide as base or sodium dialkylphosphites with good yield and selectivities. The analogous reaction performed in phosphonium ionic liquids resulted in decomposition to phosphine oxides. Copyright
- Vu, Anh P.,Shaffer, Erika A.,Byington Congiardo, Laura K.,Knight, D. Andrew
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scheme or table
p. 1845 - 1849
(2010/11/02)
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- Electrocatalytic eco-efficient functionalization of white phosphorus
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The novel eco-efficient methods to transform white phosphorus into the esters of phosphoric, phosphorous and phosphonic acids, tertiary phosphines and other organophosphorus compounds under conditions of electrochemical catalysis were elaborated. The mechanism of these processes was investigated using the method of cyclic voltammetry and preparative electrolysis.
- Budnikova, Yulia H.,Yakhvarov, Dmitry G.,Sinyashin, Oleg G.
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p. 2416 - 2425
(2007/10/03)
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- Peroxo-containing metal complexes having amine oxide, phosphine oxide, arsine oxide, pyridine N-oxide or pyridine ligands as epoxidation catalysts
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PCT No. PCT/EP96/03888 Sec. 371 Date Mar. 11, 1998 Sec. 102(e) Date Mar. 11, 1998 PCT Filed Sep. 4, 1996 PCT Pub. No. WO97/10054 PCT Pub. Date Mar. 20, 1997Olefins can be epoxidized using catalysts I where M is a metal of the 4th to 7th transition group of the Periodic Table of the Elements, L1 is an amine oxide, phosphine oxide, arsine oxide, pyridine N-oxide or pyridine ligand of the formula II, III, VII or VIII, L2 is a customary auxiliary ligand or a further ligand L1 or a free coordination site, X is oxo oxygen or an imido ligand, m is 1 or 2, and n is 1, 2 or 3.
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- Preparation of epoxides from olefins using bis(triorganosilyl) peroxides in the presence of activators based on metallic acid derivatives
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PCT No. PCT/EP97/00982 Sec. 371 Date Sep. 2, 1998 Sec. 102(e) Date Sep. 2, 1998 PCT Filed Feb. 28, 1997 PCT Pub. No. WO97/32867 PCT Pub. Date Sep. 12, 1997Epoxides are prepared from olefins using bis(triorganosilyl) peroxides in the presence of activators based on metalic acid derivatives of the formula where M is a metal of transition groups IV to VII, in particular molybdenum, tungsten or rhenium L is an uncharged ligand selected from the group consisting of amine oxides, phosphine oxides, arsine oxides, phosphoric triamides, formamides and pyridine N-oxides X is an inorganic ligand x is from 1 to 5 y is 0, 1 or 2, Z is 1 or 2 and n is 1 or 2.
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