Nano-silica PAMAM Dendrimer as a Novel Catalyst for Knoevenagel Reactions

被引：8

作者：

Hagiwara, Hisahiro ^{[1
]}

Sekifuji, Masayoshi ^{[1
]}

Tsubokawa, Norio ^{[2
]}

Hoshi, Takashi ^{[2
]}

Suzuki, Toshio ^{[2
]}

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[2] Niigata Univ, Fac Engn, Niigata 9502181, Japan

来源：

CHEMISTRY LETTERS | 2009年 / 38卷 / 09期

关键词：

HETEROGENEOUS AMINE CATALYST; BASE CATALYSTS; REUSABLE CATALYST; WATER; CONDENSATION; ALDEHYDES; EFFICIENT; GEL;

D O I：

10.1246/cl.2009.926

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A nano-silica dendrimer, poly(amidoamine)-grafted nanosilica (nano-PAMAM), catalyzed the Knoevenagel reaction of aryl and aliphatic aldehydes with various active methylene compounds at room temperature in good yields. The reaction conditions were mild enough that base-sensitive AcO or acid-sensitive THPO groups remained intact in the products. The catalyst was recycled up to 4 times in 78% average yield.

引用

页码：926 / 927

页数：2

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