2751-90-8Relevant articles and documents
Reactions of tetrathiotungstate and tetrathiomolybdate with substituted haloalkanes
Lang, Jian-Ping,Kawaguchi, Hiroyuki,Tatsumi, Kazuyuki
, p. 2573 - 2580 (2002)
Reactions of [PPh4]2[WS4] in CH3CN with excess n-hexylbromide, 1,4-dichlorobutane, 2-(bromomethyl)tetrahydro- 2H-pyran) (bmthp), and 2-(bromoethyl)-1,3-dioxane (bedo) followed by extraction with THF afforded a series of alkylthiolatotrithiotungstate complexes, [PPh4][(RS)WS3] (1: R = n-hexyl; 2: R = ClCH2CH2CH2CH2; 3: R = mthp; 4: R = edo), and the analogous reactions of [PPh4]2[MoS4] in CH3CN-THF with excess bmthp and bedo also generated [PPh4][(RS)MoS3] (5: R = mthp; 6: R = edo), albeit in low yields. Treatment of [PPh4]2[WS4] in CH3CN with excess (S)-(+)-3-bromo-2-methyl-1-propanol turned out to give a trinuclear, [PPh4]2[W3S8((S)-(+)-OCH 2CH(Me)CH2Br)2] (7). Compounds 1-7 were characterized spectroscopically and the crystal structures of 2-7 were determined by X-ray analysis. All the mononuclear complexes 2-6 assume tetrahedral structures, being coordinated by one thiolate sulfur and three terminal sulfido ligands, and no additional coordination was observed by the O-donor portions of mthp or edo. The structure of 7 consists of a linear W3 spine and two (S)-(+)-OCH2CH(Me)CH2Br ligands are coordinated at the central W atom.
Solute-Solvent Interactions with Metal Chelate Electrolytes. Part III. Salting in of Tris(acetylacetonato)cobalt(III) and Benzene by Aromatic and Aliphatic Ions
Iwamoto, Etsuro,Tanaka, Yoshie,Kimura, Hirofumi,Yamamoto, Yuroku
, p. 841 - 856 (1980)
Salting effects of the metal chelate electrolytes, Br2, Br2, Br3, Br3, and Br3 (where phen = 1,10-phenanthroline, bpy = 2,2'-bipyridyl, en = ethylenediamine, and ph 1,2-propanediamine), as well as the tetraalkylammoniumbromides (Bu4NBr and Pr4NBr), tetraphenylphosphonium bromide (Ph4PBr), sodium tetraphenylborate (NaBPh4), and sodium halides on the solubility in benzene and tris (acetylacetonato) cobalt(III) in water at 15, 20, 25, and 35 deg C were studied, and the transfer free energies of the nonelectrolytes from pure water to the electrolyte solutions were obtained.Co(acac)3 is strongly salted in by Br2, NaBPh4, and Ph4PBr with large positive transfer enthalpies and entropies, weakly salted in by Bu4NBr and Pr4NBr with much less positive enthalpies and entropies and is salted out by the other electrolytes.The differences between salting effects of aromatic and aliphatic ions are discussed using the transfer enthalpy-entropy relation.
Continuous synthesis method of tetraphenylphosphinophenylphenol salt
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Paragraph 0022; 0029-0034; 0037-0038; 0041-0044, (2021/09/01)
The method uses triphenylphosphine, halogenated benzene and phenol as raw materials, and the sodium hydroxide solution is an acid binding agent. The preparation method comprises the following steps: triphenylphosphine. The halogenated benzene and the reaction solvent are mixed in a continuous flow reactor to prepare a tetraphenylhalogenated phosphine solution, a prepared tetraphenylhalogenated phosphine solution, phenol and sodium hydroxide solution with a concentration 32% are mixed in a continuous flow reactor to prepare a tetraphenylphosphine phenol salt. Compared with a conventional stirred tank reactor, the reactor used in the preparation method is smaller in size, simple to operate, continuous in reaction, high in yield, environmentally friendly, stable in pH value during reaction, relatively mild in reaction conditions and stable in prepared tetraphenylphenol salt.
Palladium-catalyzed synthesis of functionalized tetraarylphosphonium salts
Marcoux, David,Charette, Andre B.
, p. 590 - 593 (2008/09/17)
(Chemical Equation Presented) An efficient method to synthesize functionalized tetraarylphosphonium salts is described. This palladium-catalyzed coupling reaction between aryl iodides, bromides, or triflates and triphenylphosphine generates phosphonium salts in high yields. The coupling is compatible with a variety of functional groups such as alcohols, ketones, aldehydes, phenols, and amides.
