2001 organo-phosphorus compounds

organo-phosphorus compoundsS 0080

34 - 172Reactivity of Lithium Diphenylphosphonium Diylides Towards Phos-phorus Electrophiles: Synthesis of α,β-Unsaturated PhosphorusCompounds. — The reactivity of non-stabilized, semi-stabilized, and sta-bilized lithium diphenylphosphonium diylides towards phosphorus electrophilesis investigated. A general one-pot method for the synthesis of α,β-unsaturatedphosphines as well as other phosphorus compounds via the formation offunctionalized monoylides and their in situ reaction with carbonyl compounds isdeveloped. Depending on the stabilization degree of the intermediate monoylidethe reaction is Z- or E-stereoselective and the created double bond can bedi- or trisubstituted. — (TAILLEFER, MARC; CRISTAU, HENRI JEAN;FRUCHIER, ALAIN; VICENTE, VIRGINIE; J. Organomet. Chem. 624 (2001)1-2, 307-315; Lab. Chim. Org., CNRS, Ec. Natl. Super. Chim., F-34053Montpellier, Fr.; EN)

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