Phosphorus compounds

Details Phosphorus compounds Phosphorus compounds

C - Chemistry, Metallurgy

07

F

260/291, 260/277

C07F 9/58 (2006.01) C07F 15/00 (2006.01)

Patent

CA 2027923

T 1301 A B S T R A C T PHOSPHORUS COMPOUNDS A process for the preparation of a phosphide of the chemical structure RPPyLi wherein R is alkyl, substituted or unsubstituted aryl, 2- or 4-pyridyl, P is phosphorus, Py is 2- or 4-pyridyl and Li is lithium, wherein a) in the preparation of a compound CH3PPyLi: either methyl di-2-, or 4-pyridylphosphine CH3P(Py)2 is reacted with LiH, Li(CH3), LiAr, wherein Ar is substituted or unsubstituted aryl, or 2-pyridyl lithium or 4-pyridyllithium, or tri-2- or 4-pyridylphosphine P(Py)3 is reacted with Li(CH3); b) in the preparation of a compound RPPyLi wherein R is an alkyl higher than methyl: methyl di-2- or 4-pyridylphosphine CH3P(Py)2 or ArP(Py)2 wherein Ar is substituted or unsubstituted aryl or tri-2- or 4-pyridylphosphine is reacted with an alkyl lithium compound wherein alkyl is higher than methyl; c) in the preparation of a compound RPPyLi wherein R is substituted or unsubstituted aryl: either ArP(Py)2 wherein Ar is substituted or unsubstituted aryl and Py is 2- or 4-pyridyl is reacted with LiH, 2-pyridyl lithium or 4-pyridyl lithium, their alkyl-substituted derivatives or LiAr wherein Ar is a substituted or unsubstituted aryl group or tri-2- or 4-pyridylphosphine or ArP(Py)2 wherein Ar is substituted or unsubstituted aryl is reacted with LiAr wherein Ar is substituted or unsubstituted aryl; d) in the preparation of a compound RPPyLi wherein R is 2- or 4-pyridyl: tri-2- or 4-pyridyl phosphine is reacted with LiH or 2- or 4-pyridyl lithium. CS8/T1301FF

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