Silver(I)−Carbene Complexes/Ionic
Liquids: Novel <i>N</i>-Heterocyclic Carbene
Delivery Agents for Organocatalytic
Transformations
Alan C. Sentman
Szilárd Csihony
Robert M. Waymouth
James L. Hedrick
10.1021/jo048555q.s001
https://acs.figshare.com/articles/journal_contribution/Silver_I_Carbene_Complexes_Ionic_Liquids_Novel_i_N_i_Heterocyclic_Carbene_Delivery_Agents_for_Organocatalytic_Transformations/3295831
<i>N</i>-Heterocyclic carbene (NHC) complexes with silver were
investigated as sources of unsaturated NHC carbene catalysts via thermal decomposition. The NHC complex (1-ethyl-3-methylimidazol-2-ylidene)silver(I) chloride is an ionic
liquid, and was found to catalyze the ring-opening polymerization of lactide at elevated temperatures to give narrowly
dispersed polylactide of predictable molecular weight. Silver−carbene complexes can also be used for the catalysis of small
molecule transesterification reactions. Thermolysis of the
silver complexes in the presence of CS<sub>2</sub> yielded the zwitterionic CS<sub>2</sub> adducts of the carbene, implicating the intermediacy of the free carbene in these reactions.
2005-03-18 00:00:00
Organocatalytic Transformations N
silver complexes
zwitterionic CS 2 adducts
NHC carbene catalysts
Heterocyclic Carbene Delivery Agents
Heterocyclic carbene
CS 2
molecule transesterification reactions