of nitrones has been achieved by use of unsupported nanoporous gold (AuNPore) as a heterogeneous catalyst through aerobic oxidation of N,N-disubstituted hydroxylamines with molecular oxygen as an oxidizing agent under mild conditions. A variety of amines were oxidized to the corresponding nitrones in high chemical yields. The catalyst is robust enough to be reused without leaching.
通过在温和条件下用分子氧作为氧化剂对N,N-二取代
羟胺进行好氧氧化,使用无载体的纳米多孔
金(AuNPore)作为非均相催化剂,可以轻松实现硝酮的制备。多种胺以高
化学产率被氧化成相应的硝酮。催化剂足够坚固,可以重复使用而不会浸出。