Palladium NCN and CNC pincer complexes as exceptionally active catalysts for aerobic oxidation in sustainable media

被引:79
作者
Urgoitia, Garazi [1 ]
SanMartin, Raul [1 ]
Teresa Herrero, Maria [1 ]
Dominguez, Esther [1 ]
机构
[1] Euskal Herriko Unibertsitatea, Zientzia & Teknol Fak, Bilbao 48080, Spain
关键词
SECONDARY ALCOHOLS; HOMOGENEOUS CATALYSTS; SELECTIVE OXIDATION; HIGHLY EFFICIENT; MOLECULAR-OXYGEN; ALDEHYDES; KETONES; SYSTEM; SUZUKI; COUPLINGS;
D O I
10.1039/c1gc15390k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The oxidation of secondary benzyl alcohols is catalyzed by two palladacycles at atmospheric pressure in PEG-400, a sustainable reaction media. Recycling of the active catalytic species is performed up to the 5th run, and catalyst loadings decreased down to 10(-8) mol%, thus achieving unprecedented TON and TOF values. In addition, the same conditions proved to be effective for the aerobic oxidation of benzyl methylene compounds, a scarcely explored process by palladium catalysts.
引用
收藏
页码:2161 / 2166
页数:6
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