Synthesis, Structural Characterization, and Carbonyl Addition Reactivity of a Terminal Cerium(III) Acetylide Complex
作者:Jee Eon Kim、David S. Weinberger、Patrick J. Carroll、Eric J. Schelter
DOI:10.1021/om500899z
日期:2014.11.10
We report the first structurally characterized terminal Ce(III) acetylide complex, Na[Ce(C=CPh)(bdmmp)(3)] (2), isolated from the salt metathesis of NaC=CPh with Na[Ce(OTf)(bdmmp)(3)] (1; bdmmp = 2,6-bis(dimethylamino)-4-methylphenolate). Compound 2 inserted acetophenone to form the tertiary alkoxide complex Na[Ce(OC(Me)(Ph)C=CPh)(bdmmp)(3)] (4), rather than forming an enolate product. To the best of our knowledge, complexes 2 and 4 are the first structurally characterized products that exhibit carbonyl group insertion into a CeC bond, affording new information on an important class of organocerium reagents.