Beginning as chemical curiosities with the pioneering work of Curtius, 1a Staudinger, 1b and
even earlier efforts, 1c carbenes have played an important role as transient intermediates …

N‐Heterocyclic carbenes have become universal ligands in organometallic and inorganic
coordination chemistry. They not only bind to any transition metal, be it in low or high …

The chemistry of heterocyclic carbenes has experienced a rapid development over the last
years. In addition to the imidazolin‐2‐ylidenes, a large number of cyclic diaminocarbenes …

Abstract Palladium‐catalyzed C C and C N bond‐forming reactions are among the most
versatile and powerful synthetic methods. For the last 15 years, N‐heterocyclic carbenes …

Ofele and Wanzlick reported the synthesis of the first N-heterocyclic carbene (NHC)-metal
complexes in 1968. 1, 2 The isolation of the first free carbene by Arduengo in 1991 set the …

The use of N-heterocyclic carbenes as ligands for transition metals has increased
dramatically in the last few years, spurred on by their remarkable successes in the areas of …

In recent years, N-heterocyclic carbenes (NHC) have proved to be a versatile class of
spectator ligands in homogeneous catalysis. Being robust anchoring functions for late …

We provide an overview on the state‐of‐the‐art in transition‐metal complexes formed with
water‐soluble NHC ligands. Paths to introducing water solubility by ligand design are …

Rhodium and iridium complexes of N-heterocyclic carbenes (3a− c and 4a− c) were
obtained by transmetalation from the corresponding Ag (I) complexes. The structure of 3b …

Abstract Die Chemie der heterocyclischen Carbene hat sich in den letzten Jahren stürmisch
entwickelt. Nach den Imidazolin‐2‐ylidenen wurden weitere cyclische Diaminocarbene mit …