| 摘要 |
Tertiary phosphine sulfonic acids are important ligands for transition metals where the complex is effective in catalyzing the oligomerization of alpha-olefins. An improved method of preparation utilizes inverse addition of lithiated aryl sulfonate salts to dihalophosphines at a rate which maintains a homogeneous reaction mixture, then alkylating the product of this reaction-a monohalo secondary phosphine sulfonate-with an organometallic compound, such as a Grignard reagent or an organolithium species.
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