Heterogeneous organic base-catalyzed reactions enhanced by acid supports

被引：125

作者：

Motokura, Ken ^{[1
]}

Tada, Mizuki ^{[1
]}

Iwasawa, Yasuhiro ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 31期

关键词：

D O I：

10.1021/ja0704333

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Amorphous silica-alumina-supported amines (SA-NR2) were found to be excellent heterogeneous catalysts for a variety of carbon-carbon bond-forming reactions, such as cyano-O-ethoxycarbonylation, Michael reaction, and nitro-aldol reaction. These reactions were hard to proceed either with amines alone or on the SA alone. Solid-state C-13 MAS NMR analysis revealed the acid-base interaction of the H+ site and amine group on the SA-NR2 surface, which makes an acid-base dual activation mechanism possible for carbon-carbon bond-forming reactions.

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页码：9540 / +

页数：3

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