Preparation of clay-supported Sn catalysts and application to Baeyer-Villiger oxidation

被引：38
|
作者：
Hara, Takayoshi [1 ]
Hatakeyama, Moriaki [1 ]
Kim, Arum [1 ]
Ichikuni, Nobuyuki [1 ]
Shimazu, Shogo [1 ]
机构：
[1] Chiba Univ, Dept Appl Chem & Biotechnol, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan
来源：
GREEN CHEMISTRY | 2012年 / 14卷 / 03期
关键词：
HYDROGEN-PEROXIDE; KETONES; BETA; CATIONS;
D O I：
10.1039/c2gc16437j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Clay-intercalated Sn catalysts were prepared by a conventional cation-exchange method and used for the Baeyer-Villiger oxidation of various ketones with hydrogen peroxide as an oxidant. The intercalation of monomeric Sn species into the clay interlayer was monitored by solid-state Li-7 MAS NMR. Solid-state Sn-119 MAS NMR and Sn K-edge XAFS analysis revealed that an isolated Sn species, such as [Sn-IV(OH)(x)(H2O)(5-x)]((4-x)+) (x = 0 3), was formed in the clay interlayers. Our clay-intercalated Sn catalysts showed extremely high performance in Bayer-Villiger oxidation and were also reusable without any significant loss of activity or selectivity.
引用
收藏
页码：771 / 777
页数：7
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