Rhodium(I) poly(aryl ether)-based, core-functionalised alpha-diimine metallodendrimers were investigated as catalyst precursors in the rhodium-catalysed hydroformylation of terminal olefins, 1-octene and styrene. The electronic environment across the metallodendrimer series was probed using cyclic voltammetry. The electrochemical behaviour of the metallodendrimers show irreversible and quasi-reversible electrochemical behaviour in the range 0.0–2.0 V at a scan rate of 100 mV s⁻¹. All the catalyst precursors (C1-C6) gave excellent conversions of the respective substrates with good chemoselectivity under the investigated conditions. In general, the higher dendritic catalysts C5 and C6 gave better regioselectivity, favouring linear aldehydes.

研究了铑（I）聚（芳基醚）-基团，核官能化的α-二亚胺金属树枝状大分子作为铑在末端烯烃，1-辛烯和苯乙烯的加氢甲酰化反应中的催化剂前体。使用循环伏安法检测了整个金属树枝状大分子系列的电子环境。金属树枝状大分子的电化学行为在100 mV s ^-1的扫描速率下在0.0-2.0 V的范围内显示出不可逆和准可逆的电化学行为。在所研究的条件下，所有催化剂前体（C1 - C6）均具有良好的化学选择性，从而使各个底物具有优异的转化率。通常，较高级的树枝状催化剂C5和C6 具有更好的区域选择性，有利于线性醛。