An efficient catalyst based on the cage-like mesoporous material SBA-16 as the support and Cu(I) as active sites has been successfully prepared. The catalyst demonstrated high catalytic activity (up to 88%) in the direct oxidative synthesis of α-ketoamides between acetophenone and piperidine, employing O2 from open air as the oxidant without other additives. A heterogeneous catalyst was applied in this reaction for the first time, and the catalyst could be easily separated from the reaction system by filtration and reused several times without a significant loss of activity.
一种高效催化剂已成功制备,以笼状介孔材料SBA-16作为载体,以Cu(I)作为活性位点。该催化剂在
乙酰苯与
哌啶的直接氧化合成α-酮酰胺中表现出高催化活性(高达88%),采用开空气中的O2作为氧化剂,无需其他添加剂。这种反应首次使用了异相催化剂,催化剂可以通过过滤轻松从反应体系中分离,并在未显著失活的情况下多次重复使用。