NEW MATERIAL:The hydantoin compound of formulaI(R1 is lower alkyl; R2 is H or acyl). EXAMPLE:5-Hydroxy-1-methylhydantoin. USE:Useful as a plant growth regulator, and a synthetic raw material for the preparation of various hydantoin compounds. For example, it is used for the promotion of sprouting, growth, and rooting of plant, and expected to be used as a plant hormone synergist, an agent for inducing seedless fruits, etc. PROCESS:The compound of formulaIis prepared by reacting the compound of formula II (R3 is H or alkyl) with the compound of formula III in a proper solvent such as water, alcohol, etc. at room temperature or with heating.
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