Definition of Phosphoranes. Meaning of Phosphoranes. Synonyms of Phosphoranes

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Definition of Phosphoranes

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Meaning of Phosphoranes from wikipedia

- P(OR)3 + 2 ROSC6H5 → P(OR)5 + (SC6H5)2 Phosphoranes of the type R3P=CR2 are more common and more important. Phosphoranes are also considered to be one of the...
- of the Mitsunobu esterification reaction. Part I. The involvement of phosphoranes and oxyphosphonium salts". The Journal of Organic Chemistry. 54 (13):...
- with phenyllithium.[citation needed] Phosphorus ylides are unsaturated phosphoranes, known as Wittig reagents, e.g. CH2P(C6H5)3. These compounds feature...
- of expanded octet structures for functional groups like sulfones and phosphoranes, in order to avoid the drawing of a large number of formal charges or...
- on the Wittig Reaction of 2,2-Dimethylpropanal and Tributylbutylidene-phosphorane", Tetrahedron Lett., 30, 1361–1364 (1989) Bruce E. Maryanoff, A. B. Reitz...
- on cyclic phosphites have revealed the presence of both pentavalent phosphoranes and tetravalent phosphonium intermediates in chemical equilibrium being...
- interaction. Optimized Geometry HOMO LUMO Pentacoordinate phosphetanes, or phosphoranes, present an alternative geometric mantle on which a P(V) phosphorus center...
- involves reaction of an aldehyde or ketone with a Wittig reagent (or phosphorane) of the type Ph3P=CHR to produce an alkene and Ph3P=O. The Wittig reagent...
- intermediate to a second molecule of aldehyde leads either to cyclic phosphoranes 1 or linear alkyl transfer products 2. More practical is the use of silylated...
- lithium to intermediate 2 which undergoes a phosphate–phosphorane rearrangement to phosphorane 3 which on reaction with acetic acid gives alcohol 4. Once...