Method for producing isocyanuric acid derivative having one hydrocarbon group

A method for producing an isocyanuric acid derivative having one hydrocarbon group comprising:

• a first step of washing a reaction product obtained by reacting a compound of the following formula (0) with benzyl alcohol in which at least one hydrogen atom in a benzene ring is optionally substituted with methyl group in the presence of a base selected from the group consisting of a tertiary amine, an alkali metal carbonate, and an alkali metal hydrogencarbonate, with alcohols to obtain a compound of the following formula (1);
• a second step of washing a reaction product obtained by reacting the compound of formula (1) in a solution containing a heterocyclic compound selected from the group consisting of N-methylmorpholine, N-ethylmorpholine, N-methylpiperidine, N-ethylpiperidine, N-methylpyrrolidine, and N-ethylpyrrolidine, and acetic acid or formic acid, with at least one solvent selected from the group consisting of esters, aromatic hydrocarbons, alcohols, and ethers to obtain a compound of the following formula (2);
• a third step of washing a reaction product obtained by reacting the compound of formula (2) with a compound of the following formula (5), (6), (7), or (8) having a C1-10 hydrocarbon group in the presence of alkali metal carbonate, with at least one solvent selected from the group consisting of alcohols and ethers to obtain a compound of the following formula (3);
• and
• a fourth step of washing a reaction product obtained by reacting the compound of formula (3) with an alcohol compound in the presence of trifluoromethanesulfonic acid or trimethylsilyl trifluoromethanesulfonate, with at least one solvent selected from the group consisting of esters, halogenated alkyls, and alcohols to obtain a compound of the following formula (4):
• (wherein X1s are each a chlorine atom, a fluorine atom, or a bromine atom, Bn is a benzyl group in which at least one hydrogen atom in a benzene ring is optionally substituted with methyl group, and R is a C1-10 hydrocarbon group, and X2 is a halogen atom), wherein all the steps are carried out at a temperature of not exceeding 100° C.