Preparation of arylalkyl phosphines, phosphine oxides or phosphine
申请人:Cytec Technology Corp.
公开号:US05550295A1
公开(公告)日:1996-08-27
Arylalkyl phosphines, phosphine oxides or phosphine sulfides are prepared by reacting an alkyl phosphine, phosphine oxide or phosphine sulfide with an arylhalide in the presence of a zero valence palladium catalyst.
The invention relates to novel organic phosphinic acid compounds of the formula
wherein R₁ is 2,4,4-trimethylpentyl and R₂ is 2,4,4-trimethylpentyl or cyclohexyl, and their use for the extraction of metals.