The synthesis of two water-soluble Rh(I) complexes, a disulfonated diimine mononuclear complex and a tetrasulfonated tetraimine binuclear complex, is reported. The reaction of the N,N-donor ligands containing the sulfonated alkyl substituents with [Rh(COD)(MeCN)₂]BF₄ led to the formation of the corresponding water-soluble Rh(I) complexes. The complexes were fully characterised using an array of analytical techniques such as NMR, infrared spectroscopy and mass spectrometry. The complexes were evaluated as catalyst precursors in the aqueous biphasic hydroformylation of 1-octene. Both catalyst precursors are highly active as hydroformylation precatalysts showing high conversions of 1-octene and good aldehyde chemoselectivity with no hydrogenation products (alkanes or alcohols) observed. The binuclear complex gave higher quantitative conversions compared to the mononuclear rhodium complex. Additionally, the catalysts were recovered by phase separation and reused over four catalytic runs, notably with a significant drop in conversion after each cycle.

报道了两种水溶性 Rh(I) 配合物、二磺化二亚胺单核配合物和四磺化四亚胺双核配合物的合成。含有磺化烷基取代基的N,N供体配体与 [Rh(COD)(MeCN) ₂ ]BF _{4 的反应}导致形成相应的水溶性 Rh(I) 配合物。使用一系列分析技术，如核磁共振、红外光谱和质谱，对复合物进行了全面表征。该配合物被评估为 1-辛烯的水性双相加氢甲酰化中的催化剂前体。两种催化剂前体作为加氢甲酰化预催化剂都具有高活性，显示出 1-辛烯的高转化率和良好的醛化学选择性，没有观察到氢化产物（烷烃或醇）。与单核铑配合物相比，双核配合物产生更高的定量转化。此外，催化剂通过相分离回收并在四次催化运行中重复使用，特别是在每个循环后转化率显着下降。