Palladium nanocrystals stabilized by cucurbit[6]uril as efficient heterogeneous catalyst for direct C-H functionalization of polyfluoroarenes
Palladium nanocrystals stabilized by cucurbit[6]uril as efficient heterogeneous catalyst for direct C-H functionalization of polyfluoroarenes
复制标题
葫芦[6]脲稳定的钯纳米晶体作为多氟芳烃直接 C–H 官能化的有效多相催化剂
DOI：
10.1016/j.jcat.2014.10.013
复制
发表时间：
2015-01-01
影响因子：
7.3
通讯作者：
Cao, Rong
中科院分区：
文献类型：
--
作者：
Cao, Minna;Wu, Dongshuang;Cao, Rong
以瓜环为稳定剂，成功地合成了具有丰富表面缺陷的钯纳米晶。以所制备的Pd NCS为催化剂，开发了一种直接C-H官能化缺电子多氟芳烃的有效方法。稳定的Pd NCS催化剂具有良好的催化活性和良好的循环利用性能，催化剂负载量显著降低。该催化程序对空气和水分不敏感，可以在环境中操作，操作方便。力学实验提供了可靠的数据，支持本体系的多相催化机理。(C)2014 Elsevier Inc.保留所有权利。
Palladium nanocrystals (Pd NCs) featuring abundant surface defects are successfully synthesized by using cucurbit[6]uril as a stabilizer. Employing the as-prepared Pd NCs as catalyst, an efficient approach to the direct C-H functionalization of electron-deficient polyfluoroarenes has been developed. The stable Pd NCs catalyst exhibits excellent catalytic activity and good recyclability with significantly low catalyst loading. The catalytic procedure is insensitive to air and moisture and can be manipulated under ambient environment with operational ease. Mechanistic experiments have provided credible data to support a heterogeneous catalytic mechanism of the present system. (C) 2014 Elsevier Inc. All rights reserved.