Process for producing lactams

Details Process for producing lactams Process for producing lactams

1987-05-29

1988-03-15

Schwartz, Richard A.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540532, 546243, 548544, 548552, C07D20712

Patent

active

047314540

ABSTRACT:
A method for producing a lactam having the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, or a straight chain or branched chain alkyl group having from 1 to 5 carbon atoms, and R.sup.2 is an organic group having at least 2 carbon atoms, and connected at both ends to the cyclic acid imide group, which comprises reducing a cyclic acid imide having the formula: ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, or its precursor, with hydrogen by means of a cobalt-based catalyst comprising (a) cobalt and (b) at least one modifier component selected from the group consisting of molybdenum, tungsten and rhenium.

REFERENCES:
patent: 3109005 (1963-10-01), Lidov
patent: 3681387 (1972-08-01), Hollstein et al.
patent: 3745164 (1973-07-01), Adamek

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