Ag(I) N-Heterocyclic Carbene Complexes:  Synthesis, Structure, and Application

Beyond catalysis: N-heterocyclic carbene complexes as components for medicinal, luminescent, and functional materials applications

“…These complexes are readily 45 available from imidazolium salts and Ag 2 O, Ag 2 CO 3 or AgOAc and contain relatively strong silver-carbon bonds. 3 The increased stability of the complexes is expected to be beneficial for antimicrobial activity, since silver release is retarded as compared to ionic silver complexes such as 50 AgNO 3 . The topic, pioneered to a large extent by Cannon and Youngs, has been reviewed recently, 4 and only a brief summary is given here.…”

“…The topic, pioneered to a large extent by Cannon and Youngs, has been reviewed recently, 4 and only a brief summary is given here. Complexes 1 have been the first water soluble silver NHC complexes that show antimicrobial activity superior to AgNO 3 (Fig. 2).…”

Polymer precursors from catalytic reactions of natural oils

“…As an example of this transmetallation approach, the silver-mediated reaction is the most common method for NHC transfer, 279,280 and in this manner, transmetallation can be achieved successfully with numerous metals. 281,282 However, the NHC transfer from silver does not always proceed correctly. 283,284 An alternative reported route makes use of a gold(I)-NHC complex as transfer agent to palladium(II).…”

C4-bound imidazolylidenes: from curiosities to high-impact carbene ligands

“…19 While silver carbene complexes have been shown to be very useful carbene transfer agents for C2-bound NHC systems, due partially to their stability and facile manipulation, 37 their scope appears to be significantly narrower in C4-bound carbene chemistry. Besides the restricted flexibility of introducing substituents at the C2 carbon (see above), the presence of substituents at the C5 position seems to be essential as well.…”