55629-73-7Relevant academic research and scientific papers
Feed additive method for preparing DL-tryptophan
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Paragraph 0027; 0033; 0034, (2016/10/07)
The invention provides a method for preparing a feed additive DL-tryptophan. The method comprises the following steps of: 1) preparing indole-3-formaldehyde; 2) preparing aceturic acid; 3) preparing 3-indolyl-2-acetamino acrylic acid; 4) preparing N-acetyltryptophan; 5) preparing the DL-tryptophan. The method for preparing the feed additive DL-tryptophan is easy in acquisition of raw materials, low in raw material cost, high in reaction efficiency, and simple in process; the method can be carried out at the normal temperature and under the normal pressure without environmental pollution.
