Issue 3, 2003
From the journal:

Green Chemistry

Synthesis of ε-caprolactam precursors through the N-hydroxyphthalimide-catalyzed aerobic oxidation of K/A-oil

Shigeru Yamamoto,a   Satoshi Sakaguchia  and  Yasutaka Ishii*a  

* Corresponding authors

a Department of Applied Chemistry, Faculty of Engineering and High Technology Research Center, Kansai University, Suita, Osaka 564-8680, Japan
E-mail: ishii@ipcku.kansai-u.ac.jp

Abstract

A methodology for the preparation of ε-caprolactam (CL) precursors like 1,1′-peroxydicyclohexylamine (PDHA) and/or cyclohexanone oxime from K/A-oil (a mixture of cyclohexanone and cyclohexanol) has been established by the use of N-hydroxyphthalimide (NHPI) as a key catalyst. Thus, the aerobic oxidation of K/A-oil catalyzed by NHPI followed by treatment with ammonia afforded CL precursors in high selectivities.

Graphical abstract: Synthesis of ε-caprolactam precursors through the N-hydroxyphthalimide-catalyzed aerobic oxidation of K/A-oil

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Article information

DOI
https://doi.org/10.1039/B300354J
Article type
Communication
Submitted
05 Nov 2002
First published
22 May 2003

Green Chem., 2003,5, 300-302

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Synthesis of ε-caprolactam precursors through the N-hydroxyphthalimide-catalyzed aerobic oxidation of K/A-oil

S. Yamamoto, S. Sakaguchi and Y. Ishii, Green Chem., 2003, 5, 300 DOI: 10.1039/B300354J

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