New mono- and bis-carbene samarium complexes:synthesis,X-ray crystal structures and reactivity

摘要

New samarium carbene complexes have been synthesized and characterized by X-ray diffraction analysis;the carbenic nature was assessed by reactivity studies.Over the past decades,the chemistry of transition metal carbene complexes has been thoroughly explored and recent studies have clearly demonstrated the relevance of carbenes as ancillary or active ligands in many catalytic processes of important synthetic value.