Preparation of caprolactam

Details Preparation of caprolactam Preparation of caprolactam

1989-12-12

1990-10-16

Bond, Robert T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D20108

Patent

active

049636731

ABSTRACT:
Caprolactam is prepared by heating a 6-aminocaproic ester in liquid phase in the presence of water to 230.degree.-350.degree. C. under superatmospheric pressure in a reaction medium comprising a liquid aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is inert under reaction conditions, and isolating caprolactam from the reaction mixture.

REFERENCES:
patent: 3857510 (1974-12-01), Rogic et al.
patent: 4730041 (1988-03-01), Hutmacher et al.
patent: 4731445 (1988-03-01), Hutmacher et al.
patent: 4767856 (1988-07-01), Dockner et al.
patent: 4767857 (1988-08-01), Merger et al.

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