Synthesis method of p-toluenesulfonylurea
A technology of toluenesulfonylurea and p-toluenesulfonamide, which is applied in the field of synthesis of p-toluenesulfonylurea, can solve the problems of non-environmental protection, complicated preparation process, and by-products, and achieve non-toxic and pollution-free operating environment, easy operation The effect of simple steps and low production energy consumption
Inactive Publication Date: 2020-10-09
JIANGSU UNIVERSITY OF TECHNOLOGY
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Abstract
The invention relates to a synthesis method of p-toluenesulfonylurea. The synthesis method comprises the following steps: dissolving p-toluenesulfonamide and sodium cyanate in a mixed solution of water and ethanol to react, filtering after the reaction is finished, acidifying the filtered mother solution, and filtering again, thereby finally obtaining p-toluenesulfonylurea. According to the method, no by-product or ammonia gas is generated, the yield of the target product reaches 90% or above, the purity is larger than 99%, the process is simple, operation steps are simple and convenient, theoperation environment is non-toxic and free of pollution, no waste gas is generated, production energy consumption is low, the yield is high, and the method has very high popularization value.
Application Domain
Organic compound preparationSulfonic acid amide preparation
Technology Topic
Side productP-tolylsulfonylurea +10
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