Patent ID: 6750336
Filing Date: 2004-06-15
Classification: C07D,Y02P

Abstract:
A method for producing a lactam represented by formula (1), where n is from 1 to 9 and R1 is H or an alkyl group,comprising introducing an oxime represented by formula (2) where n is from 1 to 9 and R1 is H or an alkyl group,dissolved in an organic solvent and/or a mixed aqueous solution of an organic solvent of nitrile, sulfoxide, alcohol or ether as a substrate fluid into high-temperature and high-pressure water of no less than 250Â° C. and no less than 15 MPa of a carrier fluid, thereby raising the temperature of the reaction solution within a short time to prescribed high-temperature and high-pressure conditions to synthesize a lactam from the oxime in the conditions.