EfficientN-acylation of sulfonamides using cesium salt of Wells–Dawson heteropolyacid as catalyst: Synthesis of newN-acyl sulfonamides and cyclic imides

作者：Nesma Benali, Chafika Bougheloum, Sabrina Alioua, Robila Belghiche, Abdelrani Messalhi · 发表于：Synthetic Communications · 年份：2018 · 被引用次数：20 · 研究领域：Chemical Synthesis and Reactions、Sulfur-Based Synthesis Techniques、Asymmetric Hydrogenation and Catalysis

N-acylation of substituted sulfonamides with different anhydrides in the presence of Cesium salt of Wells–Dawson heteropolyacid (Cs5HP2W18O62) as an efficient and reusable catalyst was investigated for the first time. Cs5HP2W18O62 was used with a catalytic amount in water as a green solvent. At room temperature, a series of N-acylsulfonamides were synthesized, while under refluxing conditions, new cyclic imides containing sulfonyl group were obtained. Atom-economy, high yields, easy work-up, as well as simple catalyst recovery and reusability are the key features of this procedure.