| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing 1,3-diiodohydantoins easily and economically. <P>SOLUTION: In the method for producing 1,3-diiodohydantoins represented by formula, hydantoins such as 5,5-dimethylhydantoin, hypochlorite or a hypochlorite aqueous solution, and at least one of iodine, an iodine ion source and an acid are reacted in at least one of an aqueous solvent and an organic solvent. In the formula, R<SP POS="POST">1</SP>and R<SP POS="POST">2</SP>may be the same or different mutually and are each a hydrogen atom or a 1-6C alkyl group. In this method, iodine monochloride is not required, and consequently, 1,3-diiodohydantoin can be produced easily and economically. <P>COPYRIGHT: (C)2013,JPO&INPIT |
