Chemoselective Continuous-Flow Hydrogenation of Aldehydes Catalyzed by Platinum Nanoparticles Dispersed in an Amphiphilic Resin
作者:Takao Osako、Kaoru Torii、Shuichi Hirata、Yasuhiro Uozumi
DOI:10.1021/acscatal.7b02604
日期:2017.10.6
A chemoselective continuous-flow hydrogenation of aldehydes catalyzed by a dispersion of platinum nanoparticles in an amphiphilic polymer (ARP-Pt) has been developed. Aromatic and aliphatic aldehydes bearing various reducible functional groups, such as keto, ester, or amide groups, readily underwent flow hydrogenation in aqueous solutions within 22 s in a continuous-flow system containing ARP-Pt to
已经开发了通过铂纳米颗粒在两亲性聚合物(ARP-Pt)中的分散催化的醛的化学选择性连续流加氢。带有各种可还原官能团(如酮基,酯基或酰胺基)的芳香族和脂肪族醛类,在含有ARP-Pt的连续流系统中,于水溶液中于22 s内容易进行流动氢化,从而得到相应的伯苄基或脂肪族伯醇。 ≤99%的产率具有出色的化学选择性。此外,实现了苯甲醛的长期连续流加氢8天,催化剂的总周转数达到997。流动加氢系统为含可还原官能团的醛的化学选择性加氢提供了一种有效而实用的方法。