Simple and Highly Efficient Synthesis of 3,5-Disubstituted Isoxazoles Using Cu/Graphene/Clay Nanohybrid as a New Heterogeneous Nano Catalyst
作者:Somayeh Behrouz、Mohammad Navid Soltani Rad
DOI:10.3184/174751915x14452715274657
日期:2015.12
nanohybrid) as a highly efficient heterogeneous nano-catalyst is described. In this method, Cu/AC/r-GO nanohybrid catalyses the 1,3-dipolar cycloaddition of alkynes and nitrile oxides in the presence of NaHCO3 in H2O/THF (50:50, V/V) to afford the corresponding 3,5-disubstituted isoxazoles. The Cu/AC/r-GO nanohybrid is a low cost, non-hygroscopic, chemically and thermally stable catalyst that can be reused
描述了一种简单方便的协议,用于结构多样的炔烃与原位生成的腈氧化物的“点击”环加成反应,由 Cu/氨基粘土/还原氧化石墨烯纳米杂化物(Cu/AC/r-GO 纳米杂化物)作为一种高效的异质纳米催化剂。 . 在该方法中,Cu/AC/r-GO 纳米杂化物在 H2O/THF (50:50, V/V) 中 NaHCO3 存在下催化炔烃和腈氧化物的 1,3-偶极环加成反应,得到相应的 3,5 -二取代的异恶唑。Cu/AC/r-GO 纳米杂化物是一种低成本、不吸湿、化学和热稳定的催化剂,可重复用于许多连续的反应运行,而不会显着降低其反应性。