radical organocatalytic sites. The COF-NHPI was demonstrated to be a metal-free, highly selective and heterogeneous catalyst for the efficient oxidation of various silanes to the corresponding silanols. Mechanistic studies revealed that the critical phthalimido N-oxyl radical was generated in situ to govern the catalysis.
通过自下而上的策略构建了一种新型结晶共价有机骨架 COF-NH
PI,以确保高度有序地嵌入N-羟基邻苯二甲
酰亚胺 (NH
PI) 单元作为
硝酰基有机催化位点。COF-NH
PI 被证明是一种无
金属、高选择性和多相催化剂,可将各种
硅烷有效氧化为相应的
硅醇。机理研究表明,关键的邻苯二甲
酰亚胺N -氧基自由基是原位产生的,可控制催化作用。