Process for making pyrrolidones

Details Process for making pyrrolidones Process for making pyrrolidones

1994-02-28

1995-03-28

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546257, 546287, 546288, 546304, 546332, 546348, 546 88, C07D207263

Patent

active

054018560

ABSTRACT:
A cyclocarbonylation process for making pyrrolidones under mild temperature and pressure conditions is disclosed. In the process, an allylic amine reacts with carbon monoxide in the presence of a rhodium carbonyl catalyst and an amount of a pyridine promoter effective to enhance the yield of pyrrolidone obtained in the process compared with the yield obtained in the absence of the promoter. The process can be used to make N-methyl-2-pyrrolidone from N-methylallylamine.

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patent: 4110340 (1978-08-01), Knifton
patent: 4111952 (1978-09-01), Knifton
Tetrahedron Lett. (1965) 2677.
Chem. Ber. 98 (1965) 1228.
Ang. Chem., Int., Ed. Eng 5, (1966) 435.
J. Organometal. Chem., 188, (1980) 223.
Alper et al. J. Org. Chem., 57, (1992) 3328.

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