Xuan Qiu, Prof. Christophe Len, Prof. Rafael Luque and Prof. Yingwei Li Solventless Oxidative Coupling of Amines to Imines by Using Transition-Metal-Free Metal–Organic Frameworks ChemSusChem 7
Neat couple! A metal–organic framework with open 2,2'-bipyridine sites offers a new, simple, and green protocol for the selective synthesis of imines from oxidative coupling of various amines under mild solvent-free conditions in the absence of transition metals. In addition, this catalyst is also capable of catalyzing the cross-coupling of two different amines to synthesize asymmetrical imines with unprecedented selectivity.
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