publication . Other literature type . Article . 2008

Reductive Coupling of Carbon Monoxide in a Rhenium Carbonyl Complex with Pendant Lewis Acids

Alexander J. M. Miller; Jay A. Labinger; John E. Bercaw;
Open Access
  • Published: 10 Sep 2008
  • Publisher: American Chemical Society (ACS)
  • Country: United States
Abstract
Phosphinoborane ligands impart unique reactivity to a rhenium carbonyl cation relative to simple phosphine complexes. Addition of either triethylborohydride or a platinum hydride (that can be formed from H2) forms a rhenium boroxycarbene. This carbene, which crystallizes as a dimer, disproportionates over a period of days to afford the starting cation and a structurally unprecedented boroxy(boroxymethyl)carbene, in which a new C−C bond has been formed between two reduced CO ligands. This product of C−C bond formation can be independently synthesized by addition of 2 equiv of hydride to the rhenium carbonyl cation.
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free text keywords: Colloid and Surface Chemistry, Biochemistry, General Chemistry, Catalysis, Caltech Library Services, Dimer, chemistry.chemical_compound, chemistry, Carbon monoxide, Hydride, Ligand, Photochemistry, Rhenium, chemistry.chemical_element, Polymer chemistry, Phosphine, Carbene, Lewis acids and bases
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