A process is described for the synthesis of a cationic [rhodium diolefin phosphorus ligand] complex comprising the steps of: (a) reacting a rhodium-diolefin-1,3-diketonate and an acid in a ketone solvent, (b) adding a stabilising olefin to form a stabilised cationic rhodium compound, and (c) mixing a phosphorus ligand with the solution of the stabilised cationic rhodium compound to form a solution of the cationic [rhodium diolefin phosphorus ligand] complex. The solution may be used directly or the complex recovered. In one embodiment, the solution may be combined with a co-solvent and the ketone removed to give a new catalyst solution, from which the complex may be recovered.
描述了一种合成阳离子[
铑二烯
磷配体]配合物的工艺,包括以下步骤:(a) 在酮溶剂中反应
铑二烯-1,3-二
酮酸盐和酸,(b) 添加稳定的烯烃以形成稳定的阳离子
铑化合物,以及(c) 将
磷配体与稳定的阳离子
铑化合物的溶液混合以形成阳离子[
铑二烯
磷配体]配合物的溶液。该溶液可以直接使用,或者可以回收该配合物。在一种实施方案中,该溶液可以与共溶剂混合,然后去除酮以得到新的催化剂溶液,从中可以回收该配合物。