Record number :
Title of article :
Recovering phospholes from phosphacymantrenes
Author/Authors :
Bernard Deschamps، نويسنده , , Patrick Toullec، نويسنده , , Louis Ricard، نويسنده , , François Mathey، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2001
Pages :
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Abstract :
Several attempts to recover phospholes from phosphacymantrenes are described. UV irradiation gives 1,1′-biphospholes when the ring carries two phenyl substituents. Lithium reduction appears to give somewhat erratic results. Exo-attack by phenyllithium leads to η4-anionic complexes derived from the corresponding 1-phenylphospholes. Quite surprisingly, this attack by phenyllithium is compatible with a carbonyl fonctionality on the ring. These anionic complexes yield η4-phospholium derivatives upon quaternization of phosphorus with BrCH2CH2Z (Z=CN, COOEt). One of these phospholium complexes has been caracterized by X-ray crystal structure analysis.
Keywords :
phospholes , manganese , Phospholium salts , Phosphacymantrenes , Nucleophilic attacks
Journal title :
Journal of Organometallic Chemistry
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Link To Document :