AbstractA visible-light-promoted hydroxylation of quinoxalin-2(1H)-ones using recyclable graphitic carbon nitride (g-C3N4) as a heterogeneous photocatalyst has been developed. This protocol enables the selective synthesis of various hydroxyl-containing quinoxalin-2(1H)-ones in good to excellent yields under an ambient air atmosphere. Importantly, this heterogeneous catalyst can be used at least six times without significant loss of activity.
摘要:本文报道了一种可回收的石墨烯碳氮化物(g-C3N4)作为异相光催化剂,促进喹诺啉-2(1H)-酮的可见光催化羟基化反应。该方法在常温常压空气下,能够高选择性地合成各种含羟基的喹诺啉-2(1H)-酮产物,产率良好至优良。重要的是,该异相催化剂可以重复使用至少六次而不会显著降低活性。