Patent ID: 7807846

Claim:
A method for producing a succinimide compound represented by the formula (3): (where R 5 represents an alkyl group having 1 to 12 carbon atom(s) which may be straight chain, branched or cyclic, or an aromatic group having 6 to 12 carbon atoms which may be substituted; and R 2 and R 3 represent the same as defined in formula (1)), the method comprising: reacting an aminomalonic acid ester compound represented by the formula (1): (where R 1 and R 4 independently represent an alkyl group having 1 to 12 carbon atom(s) which may be a straight chain, branched or cyclic, or an aromatic group having 6 to 12 carbon atoms which may be substituted; and R 2 and R 3 independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atom(s) which may be a straight chain, branched or cyclic, an acyl group having 2 to 6 carbon atoms which may be substituted, an alkoxycarbonyl group having 1 to 6 carbon atom(s) which may be substituted, a benzyl group of which an aromatic ring part may be substituted or a benzyloxycarbonyl group of which an aromatic ring part may be substituted, or R 2 and R 3 together with a nitrogen atom to which R 2 and R 3 are bonded form a ring), with a compound represented by formula (2): (where X represents a halogen atom), in a solvent in the presence of a base, wherein an alcohol is used as the solvent and an alkali metal alkoxide is used as the base.