Conversions of Cyclic Amines to Nylon Precursor Lactams Using Bulk Gold and Fumed Silica Catalysts

被引：35

作者：

Klobukowski, Erik R.

Mueller, Mallory L.

Angelici, Robert J. ^{[1
]}

Woo, L. Keith

机构：

[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

来源：

ACS CATALYSIS | 2011年 / 1卷 / 07期

基金：

美国国家科学基金会;

关键词：

gold; oxidative-dehydrogenation; catalysis; amidine; hydrolysis; amine; caprolactam; nylon; NON-NANOGOLD CATALYSIS; EPSILON-CAPROLACTAM; AEROBIC OXIDATION; SECONDARY-AMINES; ISOCYANIDES; CHEMISTRY; OXYGEN; ALKYL;

D O I：

10.1021/cs200120c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bulk gold powder (similar to 50 mu m) and alumina-supported gold catalyzed the oxidative dehydrogedation of 5-, 6-, and 7-membered cyclic amines to amidines. These amidines were hydrolyzed upon treatment with Aerosil 200 (fumed silica gel) and water, producing lactams in 42-73% yields and amines in 36-63% yields. The gold and Aerosil 200 catalysts could also be combined in a one-Pot reaction to catalyze the conversion of cyclic amines to lactams in yields up to 51%.

引用

页码：703 / 708

页数：6

共 28 条

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