The exploration of emerging photocatalysts like covalent organic frameworks (COFs) is an essential but challenging endeavor to find sustainable solutions for selective organic transformations. Anthraquinones are envisaged to construct COFs for visible light photocatalysis because their derivatives are employed industrially as oxidation catalysts or organic dyes. Herein, an anthraquinone COF, TpAQ-COF, is successfully constructed with 1,3,5-triformylphloroglucinol (Tp) and 2,6-diaminoanthraquinone (AQ). Then, the selective oxidation of amines over TpAQ-COF is implemented. Amines can be effectively converted into corresponding imines over TpAQ-COF powered with green light and oxygen, during which superoxide radical anion is discerned as the pivotal reactive oxygen species. This work suggests that COFs could inherit the advantages of molecular building blocks for selective reactions powered with broad visible light.

探索共价有机骨架(COF) 等新兴光催化剂是寻找选择性有机转化可持续解决方案的一项重要但具有挑战性的工作。蒽醌被设想用于构建用于可见光光催化的 COF ，因为它们的衍生物在工业上用作氧化催化剂或有机染料。在此，用 1,3,5-三甲酰基间苯三酚 (Tp) 和 2,6-二氨基蒽醌 (AQ) 成功构建了蒽醌 COF TpAQ-COF。然后，实现胺在 TpAQ-COF 上的选择性氧化。在以绿光和氧气为动力的 TpAQ-COF 上，胺可以有效地转化为相应的亚胺，在此期间超氧化物自由基阴离子被认为是关键的活性氧。这项工作表明，COFs 可以继承分子结构单元的优势，用于以宽可见光为动力的选择性反应。