Synthesis of β-Nitroamines Using Nanocrystalline MgO
摘要:
Nanocrystalline magnesium oxide (NAP-MgO) was found to be an effective heterogeneous, solid base catalyst for the direct aza-Henry reaction of nitroalkanes and various N-arylidene-4-methylbenzenesulfonamides to afford the corresponding beta-nitroamines in excellent yields under mild conditions. The catalyst was recovered by simple centrifugation and reused for three cycles with consistent activity.