A solvent-free green synthesis of N-sulfonylformamidines is reported via the direct condensation of N,N-dimethylformamide dimethyl acetal (DMF-DMA) and sulfonamide derivatives at room temperature. The described method avoids the use of metal catalysts as well as hazardous solvents, which are not permitted for pharmaceutical manufacture, for the reactions or isolation of products. Hence, the current work presents a fast and efficient alternative to earlier reported methods. The mild nature of the procedure is demonstrated by varied functional group tolerance.
报道了一种无溶剂的绿色合成N-磺酰基甲酰胺的方案,通过在室温下直接冷凝
N,N-二甲基甲酰胺二甲基
缩醛(
DMF-DMA)和磺酰胺衍
生物。该方法避免了使用
金属催化剂以及对药物生产不允许的危险溶剂,从而用于反应或产品的分离。因此,目前的工作提供了一种比之前报道的方法更快速高效的替代方案。该程序的温和特性通过不同功能团的耐受性得到了验证。