Production of 5-methyl-N-aryl-2-pyrrolidone and...

Details Production of 5-methyl-N-aryl-2-pyrrolidone and... Production of 5-methyl-N-aryl-2-pyrrolidone and...

Filed on

2005-06-07

Date issued

2005-06-07

Examiner

Desai, Rita (Department: 1626)

Patent Class

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

SubClass

Organic compounds

SubSubClass

Heterocyclic carbon compounds containing a hetero ring...

Type

Reexamination Certificate

Status

active

Patent number

06903222

Description

ABSTRACT:
This invention relates to a process for producing 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-cycloalkyl-2-pyrrolidone by reductive amination of levulinic acid or its derivatives with aryl amines, ammonia or ammonium hydroxide utilizing a metal catalyst, which is optionally supported.

REFERENCES:
patent: 3235562 (1966-02-01), Shilling et al.
patent: 3337585 (1967-08-01), Swakon et al.
Candeloro et al., Aust. J. Chem., 1978, 31:2031-7.
Candeloro et al., Aust. J. Chem. 1978, 31:2031-2037.

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