2-Hydroxyhexanoic acid → 5-Butyloxazolidine-2,4-dione

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A part of the reaction solution was sampled and the components of the reaction solution were analyzed by HPLC, as a result, the concentration of the starting material 2-hydroxyhexanoic acid amide was 1.6 mass % in the solution, the concentration of 5-butyl-oxazolidin-2,4-dione sodium salt as the objective product was 24.0 mass % in the solution and the concentration of 2-hydroxyhexanoic acid was 2.3 mass % in the solution. From these analysis values, the conversion of 2-hydroxyhexanoic acid amide was 92.6% and the yield in terms of 5-butyl-oxazolidin-2,4-dione was 82.1%.

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