27276-77-3Relevant academic research and scientific papers
A preparation method of the emetic (by machine translation)
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Paragraph 0029; 0034; 0039; 0045; 0046; 0050; 0055; 0058, (2019/04/17)
The invention relates to the field of organic synthetic technology, in particular to a emetic preparation method, comprises the following steps: S1, 3 - methoxy methyl acrylic acid methyl ester preparation; S2, synthesis of [...]; S3, is the synthesis of third zuo; S4, and aldehyde; S5, closed-loop. This invention adopts the single melamine as the synthetic starting material, greatly reducing the cost, dicyandiamide as to effectively solve the problem of lack of raw material sources; solved in the prior art long reaction time, the reaction condition is sensitive, harsh, side reaction are numerous and complex, the use of expensive or difficult to prepare sodium of other reagents, reactions caused low overall yield, the product quality is poor, so that the synthesis process technology of the route is more stable, good reproducibility, high yield, the product quality is good, content can be up to 99.5%, the yield can reach 85.6%, has higher economic benefits. (by machine translation)
