Synthesis of Guanidines from Amines and Carbodiimides Catalyzed by Mono‐Indenyl‐Ligated Rare Earth Metal Bis(silylamide) Complexes

Abstract

AbstractNucleophilic addition of primary aromatic amines to carbodiimides in the presence of catalytic amount of the mono‐indenyl‐ligated rare earth metal bis(silylamide) complexes (C9H6CMe2CH2C5H4N‐α)Ln[N(SiHMe2)2]2 at room temperature afforded efficiently a series of guanidines with a wide spectrum of substituents on the nitrogen atoms.