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English-Bulgarian polytechnical dictionary . 2013.
phosphonium salts
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Phosphonium salt — A phosphonium salt is a salt containing the phosphonium (PH4+) ion such as phosphonium iodide (PH4+I−). More commonly, phosphonium refer to an organic derivative such as tetraphenylphosphonium chloride, (C6H5)4P+ Cl and tetramethylphosphonium… … Wikipedia
Phosphonium — In chemistry, the phosphonium cation is a positively charged polyatomic ion with the chemical formula PH4+, resulting from protonation of phosphine. It has a molar mass of 35.01 g/mol.Salts containing four alkyl or aryl groups attached to a… … Wikipedia
phosphonium — fäˈsfōnēəm noun ( s) Etymology: New Latin, from phosph + onium : a univalent ion PH4+ or radical PH4 analogous to ammonium that is derived from phosphine and is known especially in the form of salts (as phosphonium iodide PH4I) and organic… … Useful english dictionary
Organophosphorus — compounds are degradable organic compounds containing carbon–phosphorus bonds (thus excluding from phosphate and phosphite esters, which lack such kind of bonding), used primarily in pest control as an alternative to chlorinated hydrocarbons that … Wikipedia
Wittig reaction — The Wittig reaction is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (often called a Wittig reagent) to give an alkene and triphenylphosphine oxide. [cite journal author = Georg Wittig, Ulrich Schöllkopf journal … Wikipedia
Ethylene oxide — Oxirane redirects here. For oxiranes as a class of molecules, see epoxide. Ethylene oxide … Wikipedia
Deep eutectic solvent — A deep eutectic solvent or DES is a type of ionic solvent with special properties composed of a mixture which forms a eutectic with a melting point much lower than either of the individual components. The first generation eutectic solvents were… … Wikipedia
Michaelis-Arbuzov reaction — The Michaelis Arbuzov reaction is the chemical reaction of a trialkyl phosphite and an alkyl halide to form a phosphonate.The reaction was discovered by August Michaelis in 1898 [cite journal | author = Michaelis, A.; Kaehne, R. | journal =… … Wikipedia
Michaelis–Arbuzov reaction — The Michaelis–Arbuzov reaction (also called the Arbuzov reaction) is the chemical reaction of a trialkyl phosphite and an alkyl halide to form a phosphonate. The reaction was discovered by August Michaelis in 1898[1], and greatly explored by… … Wikipedia
Phosphine — Chembox new Name = Phosphine ImageFile = Phosphine.png ImageSize = 100px ImageName = Phosphine ImageFileL1 = Phosphine 3D balls.png ImageSizeL1 = 100px ImageFileR1 = Phosphine 3D vdW.png ImageSizeR1 = 120px IUPACName = Phosphane OtherNames =… … Wikipedia
Phasentransferkatalysator — Die Phasentransferkatalyse (PTC) ist ein chemischer Prozess, bei dem die Reaktanden in mindestens zwei nicht mischbaren Phasen vorliegen und bei der einem der Reaktanden durch einen Phasentransferkatalysator der Durchtritt durch die Phasengrenze… … Deutsch Wikipedia
