TBN / O 2引发的THIQs相对惰性3,4-C–H键的氧化得以完成,其中α-磷酸酯基的存在对于实现双氧捕获和分子内HAT(CH活化)至关重要继电器CHAR),实现了高产量地合成一系列异喹啉-1-酮。机理研究证实3,4-双键的形成是由CHAR过程介导的。这项工作提供了一种实现远程C–H键激活的新策略。
The first oxidative C(sp3)–H phosphonylation of tertiary aliphatic amines has been developed. The use of cobalt acetate as a catalyst, N-hydroxyphthalimide as a cocatalyst, and air as an oxidant enabled the conversion of tertiary aromatic and aliphatic amines into α-aminophosphonates in moderate to excellent yields under mild conditions via a cross dehydrogenative couplingreaction.
The various α-aminophosphonates have been prepared from tertiary aromatic and aliphatic amines with P(O)H compounds via a tert-butyl hydroperoxide mediated cross-dehydrogenativecouplingreaction, eliminating the need for transition-metal catalysts. The oxidation of tertiary amine by tert-butyl hydroperoxide generates an iminium cation intermediate. A further addition of P(O)H compound to iminium cation
offers versatile control of reaction kinetics and progress. Over the past decade, many photoactive transition-metal complexes and organic chromophores were developed to catalyze chemical transformations, enabling a myriad of reactions and compounds that were previously inaccessible via traditional synthetic methods. Here, we demonstrate the photocatalytic oxidative coupling of organic thiols using cesium
A novel and highly efficient gold(III)-complex catalyzed aerobic oxidative α-CâH functionalization of amines has been developed. The tertiary amines can be directly coupled with various nucleophiles using air as a sustainable oxidant.