Process for producing 1-substituted-hydantoins

摘要

The subject is to provides a process for producing 1-substituted-hydantoins of Formula I: <IMAGE> wherein R1 represents d hydrocarbon group which may be substituted and others, cheracterized by reacting N-sustituted-N-alkcycarbonylamnilo-acetonitrile of Formula II: <IMAGE> wherein R2 represents an alkyl group and others, with an alkali metal hydroxides or the like and then treating with an acid.