Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Patent
1997-07-02
1999-11-02
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
C07D20108
Patent
active
059773561
ABSTRACT:
A simple and single step process for producing caprolactam comprising reacting 5-formylvaleric acid or an ester thereof in a solvent of water and/or an alcohol with hydrogen and ammonia in the presence of a noble metal catalyst supported by a carrier at 80.degree. to 300.degree. C. under a pressure of 10 to 120 atm, whereby amination, acidification, dehydration and cyclization occur to obtain caprolactam.
REFERENCES:
patent: 4730040 (1988-03-01), Vagt et al.
patent: 4730041 (1988-03-01), Hutmacher et al.
patent: 4731445 (1988-03-01), Hutmacher et al.
patent: 4963672 (1990-10-01), Merger et al.
patent: 5717089 (1998-02-01), Wolters et al.
Chu Shiao-Jung
Hsu Hsi-Yen
Lai Kwang-Chic
Lin Ching-Tang
Tsai J. H.
Acelon Chemicals & Fiber Corporation
Industrial Technology Research Institute
Kifle Bruck
Shah Mukund J.
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