Chemoselective Hydrogenation of Functionalized Nitroarenes and Imines by Using Carbon Nanofiber-Supported Iridium Nanoparticles

被引：22

作者：

Motoyama, Yukihiro ^{[1
]}

Taguchi, Masahiro ^{[2
]}

Desmira, Nelfa ^{[1
]}

Yoon, Seong-Ho ^{[3
]}

Mochida, Isao ^{[3
]}

Nagashima, Hideo ^{[3
]}

机构：

[1] Toyota Technol Inst, Nagoya, Aichi 4688511, Japan

[2] Kyushu Univ, Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

[3] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2014年 / 9卷 / 01期

关键词：

carbon nanofibers; heterogeneous catalysis; hydrogenation; imines; nitroarenes; RUTHENIUM NANOPARTICLES; NITRO-COMPOUNDS; IONIC LIQUIDS; CATALYSTS; REDUCTION; HALONITROBENZENES; ALKYLATION; NITRILES; PLATINUM; PD/C;

D O I：

10.1002/asia.201301184

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of three types of carbon nanofibers (CNFs; platelet: CNF-P, tubular: CNF-T, herringbone: CNF-H) with Ir-4(CO)(12) in mesitylene at 165 degrees C provided the corresponding CNF-supported iridium nanoparticles, Ir/CNFs (Ir content=2.3-2.6wt.%). Transmission electron microscopy (TEM) studies of these Ir/CNF samples revealed that size-controlled Ir nanoparticles (average particle size of 1.1-1.5 nm) existed on the CNFs. Among the three Ir/CNF samples, Ir/CNF-T showed an excellent catalytic activity and chemoselectivity towards hydrogenation of functionalized nitroarenes and imines; the corresponding aniline derivatives were obtained with high turnover numbers at ambient temperature under 10atm of H-2, and the catalyst is reusable. Ir/CNF-T was also effective for the reductive N-alkylation of anilines with carbonyl compounds.

引用

页码：71 / 74

页数：4

共 48 条

[1] Highly chemoselective reduction using a Rh/C-Fe(OAc)2 system:: practical synthesis of functionalized indoles [J].