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
收藏
页码：703 / 708
页数：6
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