Benzoyl chloride has been employed to react with primary amino groups on the surface of the second generation of poly(propylene imine) (G2-PPI) dendrimer to synthesize benzoyl-terminated dendrimer (G2-B) by a nucleophilic substitution reaction. A novel homogeneous catalyst of G2-B(Rh³⁺) has been prepared by complexing RhCl₃·3H₂O with G2-B, and further applied to the catalytic hydrogenation of nitrile butadiene rubber (NBR) and styrene butadiene rubber (SBR). The hydrogenation degrees (HDs) of HNBR and HSBR catalyzed by G2-B(Rh³⁺) are 99.2 and 92.1% respectively. The contents of Rh residue in the HNBR and HSBR catalyzed by G2-B(Rh³⁺) are only 41 and 31 ppm, respectively, which are respectively decreased by 84.5 wt% and 83.2 wt%, respectively, compared to those catalyzed by RhCl(PPh₃)₃.

已采用苯甲酰氯与第二代聚（丙烯亚胺）（G2-PPI）树枝状大分子表面的伯氨基反应，通过亲核取代反应合成苯甲酰封端的树枝状大分子（G2-B）。通过将RhCl ₃ ·3H ₂ O与G2-B络合制备了一种新型的G2-B(Rh ³⁺ )均相催化剂，并进一步应用于丁腈橡胶(NBR)和丁苯橡胶(SBR)的催化加氢. G2-B(Rh ³⁺ )催化的HNBR和HSBR的加氢度(HDs)分别为99.2%和92.1%。G2-B(Rh ³⁺⁾催化的HNBR和HSBR中Rh残基的含量) 分别仅为 41 和 31 ppm，与由 RhCl(PPh ₃ ) ₃催化的那些相比，分别降低了 84.5 wt% 和 83.2 wt% 。