A cyclic (alkyl)(amido)carbene: synthesis, study and utility as a desulfurization reagent.

The synthesis and study of a cyclic (alkyl)(amido)carbene is described. The carbene was found to undergo C-H insertion at low temperatures, formed cyclopropenes upon exposure to alkynes, and facilitated desulfurization reactions. Spectroscopic studies revealed that the carbene is strongly π-accepting but retains a complimentary degree of σ-donating properties.

A stable Janus bis(maloNHC) and its zwitterionic coinage metal complexes.

The first stable dianionic Janus-type bis(maloNHC) was isolated and characterized. Details on the chemistry of this biscarbene with respect to its ability to support catalytically relevant metal complexes are provided. The molecular structures of two dinuclear gold and silver complexes were determined by X-ray crystallography.