Development of a Unique Heterogeneous Palladium Catalyst for the Suzuki-Miyaura Reaction using (Hetero)aryl Chlorides and Chemoselective Hydrogenation
作者:Tomohiro Ichikawa、Moeko Netsu、Masahiro Mizuno、Tomoteru Mizusaki、Yukio Takagi、Yoshinari Sawama、Yasunari Monguchi、Hironao Sajiki
DOI:10.1002/adsc.201700156
日期:2017.7.3
species. It was also applicable as a chemoselective hydrogenation catalyst, showing inactivity for the hydrogenolysis of tert‐butyldimethylsilyl (TBS) ethers, alkyl benzyl ethers, and benzyl alcohols. The tert‐amines on WA30 acted as moderate catalyst poisons for Pd, resulting in chemoselective hydrogenation. 7% Pd/WA30 was reused for at least five times without any loss of the hydrogenation catalytic
开发了负载在阴离子交换树脂上的独特多相钯催化剂(7%Pd / WA30),该树脂在聚合物主链上包含N,N-二甲基氨基烷基官能团。7%的Pd / WA30可以顺利催化甚至较低反应性的杂芳基氯化物和的杂酸的铃木-宫浦反应,得到各种(杂)的联芳基因的供电子效应叔上WA30至钯物种-胺。它也可用作化学选择性加氢催化剂,显示出对叔丁基二甲基甲硅烷基(TBS)醚,烷基苄基醚和苄醇的氢解反应的惰性。该叔-WA30上的胺充当Pd的中度催化剂毒物,导致化学选择性氢化。7%Pd / WA30可重复使用至少五次,而不会损失任何氢化催化活性。